| # 2010 July 16 |
| # |
| # The author disclaims copyright to this source code. In place of |
| # a legal notice, here is a blessing: |
| # |
| # May you do good and not evil. |
| # May you find forgiveness for yourself and forgive others. |
| # May you share freely, never taking more than you give. |
| # |
| #*********************************************************************** |
| # |
| # This file implements tests to verify that the "testable statements" in |
| # the lang_select.html document are correct. |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| |
| do_execsql_test e_select-1.0 { |
| CREATE TABLE t1(a, b); |
| INSERT INTO t1 VALUES('a', 'one'); |
| INSERT INTO t1 VALUES('b', 'two'); |
| INSERT INTO t1 VALUES('c', 'three'); |
| |
| CREATE TABLE t2(a, b); |
| INSERT INTO t2 VALUES('a', 'I'); |
| INSERT INTO t2 VALUES('b', 'II'); |
| INSERT INTO t2 VALUES('c', 'III'); |
| |
| CREATE TABLE t3(a, c); |
| INSERT INTO t3 VALUES('a', 1); |
| INSERT INTO t3 VALUES('b', 2); |
| |
| CREATE TABLE t4(a, c); |
| INSERT INTO t4 VALUES('a', NULL); |
| INSERT INTO t4 VALUES('b', 2); |
| } {} |
| set t1_cross_t2 [list \ |
| a one a I a one b II \ |
| a one c III b two a I \ |
| b two b II b two c III \ |
| c three a I c three b II \ |
| c three c III \ |
| ] |
| set t1_cross_t1 [list \ |
| a one a one a one b two \ |
| a one c three b two a one \ |
| b two b two b two c three \ |
| c three a one c three b two \ |
| c three c three \ |
| ] |
| |
| |
| # This proc is a specialized version of [do_execsql_test]. |
| # |
| # The second argument to this proc must be a SELECT statement that |
| # features a cross join of some time. Instead of the usual ",", |
| # "CROSS JOIN" or "INNER JOIN" join-op, the string %JOIN% must be |
| # substituted. |
| # |
| # This test runs the SELECT three times - once with: |
| # |
| # * s/%JOIN%/,/ |
| # * s/%JOIN%/JOIN/ |
| # * s/%JOIN%/INNER JOIN/ |
| # * s/%JOIN%/CROSS JOIN/ |
| # |
| # and checks that each time the results of the SELECT are $res. |
| # |
| proc do_join_test {tn select res} { |
| foreach {tn2 joinop} [list 1 , 2 "CROSS JOIN" 3 "INNER JOIN"] { |
| set S [string map [list %JOIN% $joinop] $select] |
| uplevel do_execsql_test $tn.$tn2 [list $S] [list $res] |
| } |
| } |
| |
| #------------------------------------------------------------------------- |
| # The following tests check that all paths on the syntax diagrams on |
| # the lang_select.html page may be taken. |
| # |
| # EVIDENCE-OF: R-18428-22111 -- syntax diagram join-constraint |
| # |
| do_join_test e_select-0.1.1 { |
| SELECT count(*) FROM t1 %JOIN% t2 ON (t1.a=t2.a) |
| } {3} |
| do_join_test e_select-0.1.2 { |
| SELECT count(*) FROM t1 %JOIN% t2 USING (a) |
| } {3} |
| do_join_test e_select-0.1.3 { |
| SELECT count(*) FROM t1 %JOIN% t2 |
| } {9} |
| do_catchsql_test e_select-0.1.4 { |
| SELECT count(*) FROM t1, t2 ON (t1.a=t2.a) USING (a) |
| } {1 {cannot have both ON and USING clauses in the same join}} |
| do_catchsql_test e_select-0.1.5 { |
| SELECT count(*) FROM t1, t2 USING (a) ON (t1.a=t2.a) |
| } {1 {near "ON": syntax error}} |
| |
| # EVIDENCE-OF: R-44854-11739 -- syntax diagram select-core |
| # |
| # 0: SELECT ... |
| # 1: SELECT DISTINCT ... |
| # 2: SELECT ALL ... |
| # |
| # 0: No FROM clause |
| # 1: Has FROM clause |
| # |
| # 0: No WHERE clause |
| # 1: Has WHERE clause |
| # |
| # 0: No GROUP BY clause |
| # 1: Has GROUP BY clause |
| # 2: Has GROUP BY and HAVING clauses |
| # |
| do_select_tests e_select-0.2 { |
| 0000.1 "SELECT 1, 2, 3 " {1 2 3} |
| 1000.1 "SELECT DISTINCT 1, 2, 3 " {1 2 3} |
| 2000.1 "SELECT ALL 1, 2, 3 " {1 2 3} |
| |
| 0100.1 "SELECT a, b, a||b FROM t1 " { |
| a one aone b two btwo c three cthree |
| } |
| 1100.1 "SELECT DISTINCT a, b, a||b FROM t1 " { |
| a one aone b two btwo c three cthree |
| } |
| 1200.1 "SELECT ALL a, b, a||b FROM t1 " { |
| a one aone b two btwo c three cthree |
| } |
| |
| 0010.1 "SELECT 1, 2, 3 WHERE 1 " {1 2 3} |
| 0010.2 "SELECT 1, 2, 3 WHERE 0 " {} |
| 0010.3 "SELECT 1, 2, 3 WHERE NULL " {} |
| |
| 1010.1 "SELECT DISTINCT 1, 2, 3 WHERE 1 " {1 2 3} |
| |
| 2010.1 "SELECT ALL 1, 2, 3 WHERE 1 " {1 2 3} |
| |
| 0110.1 "SELECT a, b, a||b FROM t1 WHERE a!='x' " { |
| a one aone b two btwo c three cthree |
| } |
| 0110.2 "SELECT a, b, a||b FROM t1 WHERE a=='x'" {} |
| |
| 1110.1 "SELECT DISTINCT a, b, a||b FROM t1 WHERE a!='x' " { |
| a one aone b two btwo c three cthree |
| } |
| |
| 2110.0 "SELECT ALL a, b, a||b FROM t1 WHERE a=='x'" {} |
| |
| 0001.1 "SELECT 1, 2, 3 GROUP BY 2" {1 2 3} |
| 0002.1 "SELECT 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3} |
| 0002.2 "SELECT 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {} |
| |
| 1001.1 "SELECT DISTINCT 1, 2, 3 GROUP BY 2" {1 2 3} |
| 1002.1 "SELECT DISTINCT 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3} |
| 1002.2 "SELECT DISTINCT 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {} |
| |
| 2001.1 "SELECT ALL 1, 2, 3 GROUP BY 2" {1 2 3} |
| 2002.1 "SELECT ALL 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3} |
| 2002.2 "SELECT ALL 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {} |
| |
| 0101.1 "SELECT count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b} |
| 0102.1 "SELECT count(*), max(a) FROM t1 GROUP BY b HAVING count(*)=1" { |
| 1 a 1 c 1 b |
| } |
| 0102.2 "SELECT count(*), max(a) FROM t1 GROUP BY b HAVING count(*)=2" { } |
| |
| 1101.1 "SELECT DISTINCT count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b} |
| 1102.1 "SELECT DISTINCT count(*), max(a) FROM t1 |
| GROUP BY b HAVING count(*)=1" { |
| 1 a 1 c 1 b |
| } |
| 1102.2 "SELECT DISTINCT count(*), max(a) FROM t1 |
| GROUP BY b HAVING count(*)=2" { |
| } |
| |
| 2101.1 "SELECT ALL count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b} |
| 2102.1 "SELECT ALL count(*), max(a) FROM t1 |
| GROUP BY b HAVING count(*)=1" { |
| 1 a 1 c 1 b |
| } |
| 2102.2 "SELECT ALL count(*), max(a) FROM t1 |
| GROUP BY b HAVING count(*)=2" { |
| } |
| |
| 0011.1 "SELECT 1, 2, 3 WHERE 1 GROUP BY 2" {1 2 3} |
| 0012.1 "SELECT 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)=1" {} |
| 0012.2 "SELECT 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)>1" {} |
| |
| 1011.1 "SELECT DISTINCT 1, 2, 3 WHERE 0 GROUP BY 2" {} |
| 1012.1 "SELECT DISTINCT 1, 2, 3 WHERE 1 GROUP BY 2 HAVING count(*)=1" |
| {1 2 3} |
| 1012.2 "SELECT DISTINCT 1, 2, 3 WHERE NULL GROUP BY 2 HAVING count(*)>1" {} |
| |
| 2011.1 "SELECT ALL 1, 2, 3 WHERE 1 GROUP BY 2" {1 2 3} |
| 2012.1 "SELECT ALL 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)=1" {} |
| 2012.2 "SELECT ALL 1, 2, 3 WHERE 'abc' GROUP BY 2 HAVING count(*)>1" {} |
| |
| 0111.1 "SELECT count(*), max(a) FROM t1 WHERE a='a' GROUP BY b" {1 a} |
| 0112.1 "SELECT count(*), max(a) FROM t1 |
| WHERE a='c' GROUP BY b HAVING count(*)=1" {1 c} |
| 0112.2 "SELECT count(*), max(a) FROM t1 |
| WHERE 0 GROUP BY b HAVING count(*)=2" { } |
| 1111.1 "SELECT DISTINCT count(*), max(a) FROM t1 WHERE a<'c' GROUP BY b" |
| {1 a 1 b} |
| 1112.1 "SELECT DISTINCT count(*), max(a) FROM t1 WHERE a>'a' |
| GROUP BY b HAVING count(*)=1" { |
| 1 c 1 b |
| } |
| 1112.2 "SELECT DISTINCT count(*), max(a) FROM t1 WHERE 0 |
| GROUP BY b HAVING count(*)=2" { |
| } |
| |
| 2111.1 "SELECT ALL count(*), max(a) FROM t1 WHERE b>'one' GROUP BY b" |
| {1 c 1 b} |
| 2112.1 "SELECT ALL count(*), max(a) FROM t1 WHERE a!='b' |
| GROUP BY b HAVING count(*)=1" { |
| 1 a 1 c |
| } |
| 2112.2 "SELECT ALL count(*), max(a) FROM t1 |
| WHERE 0 GROUP BY b HAVING count(*)=2" { } |
| } |
| |
| |
| # EVIDENCE-OF: R-23316-20169 -- syntax diagram result-column |
| # |
| do_select_tests e_select-0.3 { |
| 1 "SELECT * FROM t1" {a one b two c three} |
| 2 "SELECT t1.* FROM t1" {a one b two c three} |
| 3 "SELECT 'x'||a||'x' FROM t1" {xax xbx xcx} |
| 4 "SELECT 'x'||a||'x' alias FROM t1" {xax xbx xcx} |
| 5 "SELECT 'x'||a||'x' AS alias FROM t1" {xax xbx xcx} |
| } |
| |
| # EVIDENCE-OF: R-41233-21397 -- syntax diagram join-source |
| # |
| # EVIDENCE-OF: R-45040-11121 -- syntax diagram join-op |
| # |
| do_select_tests e_select-0.4 { |
| 1 "SELECT t1.rowid FROM t1" {1 2 3} |
| 2 "SELECT t1.rowid FROM t1,t2" {1 1 1 2 2 2 3 3 3} |
| 3 "SELECT t1.rowid FROM t1,t2,t3" {1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3} |
| |
| 4 "SELECT t1.rowid FROM t1" {1 2 3} |
| 5 "SELECT t1.rowid FROM t1 JOIN t2" {1 1 1 2 2 2 3 3 3} |
| 6 "SELECT t1.rowid FROM t1 JOIN t2 JOIN t3" |
| {1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3} |
| |
| 7 "SELECT t1.rowid FROM t1 NATURAL JOIN t3" {1 2} |
| 8 "SELECT t1.rowid FROM t1 NATURAL LEFT OUTER JOIN t3" {1 2 3} |
| 9 "SELECT t1.rowid FROM t1 NATURAL LEFT JOIN t3" {1 2 3} |
| 10 "SELECT t1.rowid FROM t1 NATURAL INNER JOIN t3" {1 2} |
| 11 "SELECT t1.rowid FROM t1 NATURAL CROSS JOIN t3" {1 2} |
| |
| 12 "SELECT t1.rowid FROM t1 JOIN t3" {1 1 2 2 3 3} |
| 13 "SELECT t1.rowid FROM t1 LEFT OUTER JOIN t3" {1 1 2 2 3 3} |
| 14 "SELECT t1.rowid FROM t1 LEFT JOIN t3" {1 1 2 2 3 3} |
| 15 "SELECT t1.rowid FROM t1 INNER JOIN t3" {1 1 2 2 3 3} |
| 16 "SELECT t1.rowid FROM t1 CROSS JOIN t3" {1 1 2 2 3 3} |
| } |
| |
| # EVIDENCE-OF: R-56911-63533 -- syntax diagram compound-operator |
| # |
| do_select_tests e_select-0.5 { |
| 1 "SELECT rowid FROM t1 UNION ALL SELECT rowid+2 FROM t4" {1 2 3 3 4} |
| 2 "SELECT rowid FROM t1 UNION SELECT rowid+2 FROM t4" {1 2 3 4} |
| 3 "SELECT rowid FROM t1 INTERSECT SELECT rowid+2 FROM t4" {3} |
| 4 "SELECT rowid FROM t1 EXCEPT SELECT rowid+2 FROM t4" {1 2} |
| } |
| |
| # EVIDENCE-OF: R-60388-27458 -- syntax diagram ordering-term |
| # |
| do_select_tests e_select-0.6 { |
| 1 "SELECT b||a FROM t1 ORDER BY b||a" {onea threec twob} |
| 2 "SELECT b||a FROM t1 ORDER BY (b||a) COLLATE nocase" {onea threec twob} |
| 3 "SELECT b||a FROM t1 ORDER BY (b||a) ASC" {onea threec twob} |
| 4 "SELECT b||a FROM t1 ORDER BY (b||a) DESC" {twob threec onea} |
| } |
| |
| # EVIDENCE-OF: R-36494-33519 -- syntax diagram select-stmt |
| # |
| do_select_tests e_select-0.7 { |
| 1 "SELECT * FROM t1" {a one b two c three} |
| 2 "SELECT * FROM t1 ORDER BY b" {a one c three b two} |
| 3 "SELECT * FROM t1 ORDER BY b, a" {a one c three b two} |
| |
| 4 "SELECT * FROM t1 LIMIT 10" {a one b two c three} |
| 5 "SELECT * FROM t1 LIMIT 10 OFFSET 5" {} |
| 6 "SELECT * FROM t1 LIMIT 10, 5" {} |
| |
| 7 "SELECT * FROM t1 ORDER BY a LIMIT 10" {a one b two c three} |
| 8 "SELECT * FROM t1 ORDER BY b LIMIT 10 OFFSET 5" {} |
| 9 "SELECT * FROM t1 ORDER BY a,b LIMIT 10, 5" {} |
| |
| 10 "SELECT * FROM t1 UNION SELECT b, a FROM t1" |
| {a one b two c three one a three c two b} |
| 11 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b" |
| {one a two b three c a one c three b two} |
| 12 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b, a" |
| {one a two b three c a one c three b two} |
| 13 "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10" |
| {a one b two c three one a three c two b} |
| 14 "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10 OFFSET 5" |
| {two b} |
| 15 "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10, 5" |
| {} |
| 16 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY a LIMIT 10" |
| {a one b two c three one a three c two b} |
| 17 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b LIMIT 10 OFFSET 5" |
| {b two} |
| 18 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY a,b LIMIT 10, 5" |
| {} |
| } |
| |
| #------------------------------------------------------------------------- |
| # The following tests focus on FROM clause (join) processing. |
| # |
| |
| # EVIDENCE-OF: R-16074-54196 If the FROM clause is omitted from a simple |
| # SELECT statement, then the input data is implicitly a single row zero |
| # columns wide |
| # |
| do_select_tests e_select-1.1 { |
| 1 "SELECT 'abc'" {abc} |
| 2 "SELECT 'abc' WHERE NULL" {} |
| 3 "SELECT NULL" {{}} |
| 4 "SELECT count(*)" {1} |
| 5 "SELECT count(*) WHERE 0" {0} |
| 6 "SELECT count(*) WHERE 1" {1} |
| } |
| |
| # EVIDENCE-OF: R-48114-33255 If there is only a single table in the |
| # join-source following the FROM clause, then the input data used by the |
| # SELECT statement is the contents of the named table. |
| # |
| # The results of the SELECT queries suggest that they are operating on the |
| # contents of the table 'xx'. |
| # |
| do_execsql_test e_select-1.2.0 { |
| CREATE TABLE xx(x, y); |
| INSERT INTO xx VALUES('IiJlsIPepMuAhU', X'10B00B897A15BAA02E3F98DCE8F2'); |
| INSERT INTO xx VALUES(NULL, -16.87); |
| INSERT INTO xx VALUES(-17.89, 'linguistically'); |
| } {} |
| do_select_tests e_select-1.2 { |
| 1 "SELECT quote(x), quote(y) FROM xx" { |
| 'IiJlsIPepMuAhU' X'10B00B897A15BAA02E3F98DCE8F2' |
| NULL -16.87 |
| -17.89 'linguistically' |
| } |
| |
| 2 "SELECT count(*), count(x), count(y) FROM xx" {3 2 3} |
| 3 "SELECT sum(x), sum(y) FROM xx" {-17.89 -16.87} |
| } |
| |
| # EVIDENCE-OF: R-23593-12456 If there is more than one table specified |
| # as part of the join-source following the FROM keyword, then the |
| # contents of each named table are joined into a single dataset for the |
| # simple SELECT statement to operate on. |
| # |
| # There are more detailed tests for subsequent requirements that add |
| # more detail to this idea. We just add a single test that shows that |
| # data is coming from each of the three tables following the FROM clause |
| # here to show that the statement, vague as it is, is not incorrect. |
| # |
| do_select_tests e_select-1.3 { |
| 1 "SELECT * FROM t1, t2, t3" { |
| a one a I a 1 a one a I b 2 a one b II a 1 |
| a one b II b 2 a one c III a 1 a one c III b 2 |
| b two a I a 1 b two a I b 2 b two b II a 1 |
| b two b II b 2 b two c III a 1 b two c III b 2 |
| c three a I a 1 c three a I b 2 c three b II a 1 |
| c three b II b 2 c three c III a 1 c three c III b 2 |
| } |
| } |
| |
| # |
| # The following block of tests - e_select-1.4.* - test that the description |
| # of cartesian joins in the SELECT documentation is consistent with SQLite. |
| # In doing so, we test the following three requirements as a side-effect: |
| # |
| # EVIDENCE-OF: R-46122-14930 If the join-op is "CROSS JOIN", "INNER |
| # JOIN", "JOIN" or a comma (",") and there is no ON or USING clause, |
| # then the result of the join is simply the cartesian product of the |
| # left and right-hand datasets. |
| # |
| # The tests are built on this assertion. Really, they test that the output |
| # of a CROSS JOIN, JOIN, INNER JOIN or "," join matches the expected result |
| # of calculating the cartesian product of the left and right-hand datasets. |
| # |
| # EVIDENCE-OF: R-46256-57243 There is no difference between the "INNER |
| # JOIN", "JOIN" and "," join operators. |
| # |
| # EVIDENCE-OF: R-07544-24155 The "CROSS JOIN" join operator produces the |
| # same data as the "INNER JOIN", "JOIN" and "," operators |
| # |
| # All tests are run 4 times, with the only difference in each run being |
| # which of the 4 equivalent cartesian product join operators are used. |
| # Since the output data is the same in all cases, we consider that this |
| # qualifies as testing the two statements above. |
| # |
| do_execsql_test e_select-1.4.0 { |
| CREATE TABLE x1(a, b); |
| CREATE TABLE x2(c, d, e); |
| CREATE TABLE x3(f, g, h, i); |
| |
| -- x1: 3 rows, 2 columns |
| INSERT INTO x1 VALUES(24, 'converging'); |
| INSERT INTO x1 VALUES(NULL, X'CB71'); |
| INSERT INTO x1 VALUES('blonds', 'proprietary'); |
| |
| -- x2: 2 rows, 3 columns |
| INSERT INTO x2 VALUES(-60.06, NULL, NULL); |
| INSERT INTO x2 VALUES(-58, NULL, 1.21); |
| |
| -- x3: 5 rows, 4 columns |
| INSERT INTO x3 VALUES(-39.24, NULL, 'encompass', -1); |
| INSERT INTO x3 VALUES('presenting', 51, 'reformation', 'dignified'); |
| INSERT INTO x3 VALUES('conducting', -87.24, 37.56, NULL); |
| INSERT INTO x3 VALUES('coldest', -96, 'dramatists', 82.3); |
| INSERT INTO x3 VALUES('alerting', NULL, -93.79, NULL); |
| } {} |
| |
| # EVIDENCE-OF: R-59089-25828 The columns of the cartesian product |
| # dataset are, in order, all the columns of the left-hand dataset |
| # followed by all the columns of the right-hand dataset. |
| # |
| do_join_test e_select-1.4.1.1 { |
| SELECT * FROM x1 %JOIN% x2 LIMIT 1 |
| } [concat {24 converging} {-60.06 {} {}}] |
| |
| do_join_test e_select-1.4.1.2 { |
| SELECT * FROM x2 %JOIN% x1 LIMIT 1 |
| } [concat {-60.06 {} {}} {24 converging}] |
| |
| do_join_test e_select-1.4.1.3 { |
| SELECT * FROM x3 %JOIN% x2 LIMIT 1 |
| } [concat {-39.24 {} encompass -1} {-60.06 {} {}}] |
| |
| do_join_test e_select-1.4.1.4 { |
| SELECT * FROM x2 %JOIN% x3 LIMIT 1 |
| } [concat {-60.06 {} {}} {-39.24 {} encompass -1}] |
| |
| # EVIDENCE-OF: R-44414-54710 There is a row in the cartesian product |
| # dataset formed by combining each unique combination of a row from the |
| # left-hand and right-hand datasets. |
| # |
| do_join_test e_select-1.4.2.1 { |
| SELECT * FROM x2 %JOIN% x3 |
| } [list -60.06 {} {} -39.24 {} encompass -1 \ |
| -60.06 {} {} presenting 51 reformation dignified \ |
| -60.06 {} {} conducting -87.24 37.56 {} \ |
| -60.06 {} {} coldest -96 dramatists 82.3 \ |
| -60.06 {} {} alerting {} -93.79 {} \ |
| -58 {} 1.21 -39.24 {} encompass -1 \ |
| -58 {} 1.21 presenting 51 reformation dignified \ |
| -58 {} 1.21 conducting -87.24 37.56 {} \ |
| -58 {} 1.21 coldest -96 dramatists 82.3 \ |
| -58 {} 1.21 alerting {} -93.79 {} \ |
| ] |
| # TODO: Come back and add a few more like the above. |
| |
| # EVIDENCE-OF: R-20659-43267 In other words, if the left-hand dataset |
| # consists of Nlhs rows of Mlhs columns, and the right-hand dataset of |
| # Nrhs rows of Mrhs columns, then the cartesian product is a dataset of |
| # Nlhs.Nrhs rows, each containing Mlhs+Mrhs columns. |
| # |
| # x1, x2 (Nlhs=3, Nrhs=2) (Mlhs=2, Mrhs=3) |
| do_join_test e_select-1.4.3.1 { |
| SELECT count(*) FROM x1 %JOIN% x2 |
| } [expr 3*2] |
| do_test e_select-1.4.3.2 { |
| expr {[llength [execsql {SELECT * FROM x1, x2}]] / 6} |
| } [expr 2+3] |
| |
| # x2, x3 (Nlhs=2, Nrhs=5) (Mlhs=3, Mrhs=4) |
| do_join_test e_select-1.4.3.3 { |
| SELECT count(*) FROM x2 %JOIN% x3 |
| } [expr 2*5] |
| do_test e_select-1.4.3.4 { |
| expr {[llength [execsql {SELECT * FROM x2 JOIN x3}]] / 10} |
| } [expr 3+4] |
| |
| # x3, x1 (Nlhs=5, Nrhs=3) (Mlhs=4, Mrhs=2) |
| do_join_test e_select-1.4.3.5 { |
| SELECT count(*) FROM x3 %JOIN% x1 |
| } [expr 5*3] |
| do_test e_select-1.4.3.6 { |
| expr {[llength [execsql {SELECT * FROM x3 CROSS JOIN x1}]] / 15} |
| } [expr 4+2] |
| |
| # x3, x3 (Nlhs=5, Nrhs=5) (Mlhs=4, Mrhs=4) |
| do_join_test e_select-1.4.3.7 { |
| SELECT count(*) FROM x3 %JOIN% x3 |
| } [expr 5*5] |
| do_test e_select-1.4.3.8 { |
| expr {[llength [execsql {SELECT * FROM x3 INNER JOIN x3 AS x4}]] / 25} |
| } [expr 4+4] |
| |
| # Some extra cartesian product tests using tables t1 and t2. |
| # |
| do_execsql_test e_select-1.4.4.1 { SELECT * FROM t1, t2 } $t1_cross_t2 |
| do_execsql_test e_select-1.4.4.2 { SELECT * FROM t1 AS x, t1 AS y} $t1_cross_t1 |
| |
| do_select_tests e_select-1.4.5 [list \ |
| 1 { SELECT * FROM t1 CROSS JOIN t2 } $t1_cross_t2 \ |
| 2 { SELECT * FROM t1 AS y CROSS JOIN t1 AS x } $t1_cross_t1 \ |
| 3 { SELECT * FROM t1 INNER JOIN t2 } $t1_cross_t2 \ |
| 4 { SELECT * FROM t1 AS y INNER JOIN t1 AS x } $t1_cross_t1 \ |
| ] |
| |
| |
| # EVIDENCE-OF: R-22775-56496 If there is an ON clause specified, then |
| # the ON expression is evaluated for each row of the cartesian product |
| # as a boolean expression. All rows for which the expression evaluates |
| # to false are excluded from the dataset. |
| # |
| foreach {tn select res} [list \ |
| 1 { SELECT * FROM t1 %JOIN% t2 ON (1) } $t1_cross_t2 \ |
| 2 { SELECT * FROM t1 %JOIN% t2 ON (0) } [list] \ |
| 3 { SELECT * FROM t1 %JOIN% t2 ON (NULL) } [list] \ |
| 4 { SELECT * FROM t1 %JOIN% t2 ON ('abc') } [list] \ |
| 5 { SELECT * FROM t1 %JOIN% t2 ON ('1ab') } $t1_cross_t2 \ |
| 6 { SELECT * FROM t1 %JOIN% t2 ON (0.9) } $t1_cross_t2 \ |
| 7 { SELECT * FROM t1 %JOIN% t2 ON ('0.9') } $t1_cross_t2 \ |
| 8 { SELECT * FROM t1 %JOIN% t2 ON (0.0) } [list] \ |
| \ |
| 9 { SELECT t1.b, t2.b FROM t1 %JOIN% t2 ON (t1.a = t2.a) } \ |
| {one I two II three III} \ |
| 10 { SELECT t1.b, t2.b FROM t1 %JOIN% t2 ON (t1.a = 'a') } \ |
| {one I one II one III} \ |
| 11 { SELECT t1.b, t2.b |
| FROM t1 %JOIN% t2 ON (CASE WHEN t1.a = 'a' THEN NULL ELSE 1 END) } \ |
| {two I two II two III three I three II three III} \ |
| ] { |
| do_join_test e_select-1.3.$tn $select $res |
| } |
| |
| # EVIDENCE-OF: R-63358-54862 If there is a USING clause specified as |
| # part of the join-constraint, then each of the column names specified |
| # must exist in the datasets to both the left and right of the join-op. |
| # |
| do_select_tests e_select-1.4 -error { |
| cannot join using column %s - column not present in both tables |
| } { |
| 1 { SELECT * FROM t1, t3 USING (b) } "b" |
| 2 { SELECT * FROM t3, t1 USING (c) } "c" |
| 3 { SELECT * FROM t3, (SELECT a AS b, b AS c FROM t1) USING (a) } "a" |
| } |
| |
| # EVIDENCE-OF: R-55987-04584 For each pair of namesake columns, the |
| # expression "lhs.X = rhs.X" is evaluated for each row of the cartesian |
| # product as a boolean expression. All rows for which one or more of the |
| # expressions evaluates to false are excluded from the result set. |
| # |
| do_select_tests e_select-1.5 { |
| 1 { SELECT * FROM t1, t3 USING (a) } {a one 1 b two 2} |
| 2 { SELECT * FROM t3, t4 USING (a,c) } {b 2} |
| } |
| |
| # EVIDENCE-OF: R-54046-48600 When comparing values as a result of a |
| # USING clause, the normal rules for handling affinities, collation |
| # sequences and NULL values in comparisons apply. |
| # |
| # EVIDENCE-OF: R-35466-18578 The column from the dataset on the |
| # left-hand side of the join operator is considered to be on the |
| # left-hand side of the comparison operator (=) for the purposes of |
| # collation sequence and affinity precedence. |
| # |
| do_execsql_test e_select-1.6.0 { |
| CREATE TABLE t5(a COLLATE nocase, b COLLATE binary); |
| INSERT INTO t5 VALUES('AA', 'cc'); |
| INSERT INTO t5 VALUES('BB', 'dd'); |
| INSERT INTO t5 VALUES(NULL, NULL); |
| CREATE TABLE t6(a COLLATE binary, b COLLATE nocase); |
| INSERT INTO t6 VALUES('aa', 'cc'); |
| INSERT INTO t6 VALUES('bb', 'DD'); |
| INSERT INTO t6 VALUES(NULL, NULL); |
| } {} |
| foreach {tn select res} { |
| 1 { SELECT * FROM t5 %JOIN% t6 USING (a) } {AA cc cc BB dd DD} |
| 2 { SELECT * FROM t6 %JOIN% t5 USING (a) } {} |
| 3 { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) %JOIN% t5 USING (a) } |
| {aa cc cc bb DD dd} |
| 4 { SELECT * FROM t5 %JOIN% t6 USING (a,b) } {AA cc} |
| 5 { SELECT * FROM t6 %JOIN% t5 USING (a,b) } {} |
| } { |
| do_join_test e_select-1.6.$tn $select $res |
| } |
| |
| # EVIDENCE-OF: R-57047-10461 For each pair of columns identified by a |
| # USING clause, the column from the right-hand dataset is omitted from |
| # the joined dataset. |
| # |
| # EVIDENCE-OF: R-56132-15700 This is the only difference between a USING |
| # clause and its equivalent ON constraint. |
| # |
| foreach {tn select res} { |
| 1a { SELECT * FROM t1 %JOIN% t2 USING (a) } |
| {a one I b two II c three III} |
| 1b { SELECT * FROM t1 %JOIN% t2 ON (t1.a=t2.a) } |
| {a one a I b two b II c three c III} |
| |
| 2a { SELECT * FROM t3 %JOIN% t4 USING (a) } |
| {a 1 {} b 2 2} |
| 2b { SELECT * FROM t3 %JOIN% t4 ON (t3.a=t4.a) } |
| {a 1 a {} b 2 b 2} |
| |
| 3a { SELECT * FROM t3 %JOIN% t4 USING (a,c) } {b 2} |
| 3b { SELECT * FROM t3 %JOIN% t4 ON (t3.a=t4.a AND t3.c=t4.c) } {b 2 b 2} |
| |
| 4a { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) AS x |
| %JOIN% t5 USING (a) } |
| {aa cc cc bb DD dd} |
| 4b { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) AS x |
| %JOIN% t5 ON (x.a=t5.a) } |
| {aa cc AA cc bb DD BB dd} |
| } { |
| do_join_test e_select-1.7.$tn $select $res |
| } |
| |
| # EVIDENCE-OF: R-41434-12448 If the join-op is a "LEFT JOIN" or "LEFT |
| # OUTER JOIN", then after the ON or USING filtering clauses have been |
| # applied, an extra row is added to the output for each row in the |
| # original left-hand input dataset that corresponds to no rows at all in |
| # the composite dataset (if any). |
| # |
| do_execsql_test e_select-1.8.0 { |
| CREATE TABLE t7(a, b, c); |
| CREATE TABLE t8(a, d, e); |
| |
| INSERT INTO t7 VALUES('x', 'ex', 24); |
| INSERT INTO t7 VALUES('y', 'why', 25); |
| |
| INSERT INTO t8 VALUES('x', 'abc', 24); |
| INSERT INTO t8 VALUES('z', 'ghi', 26); |
| } {} |
| |
| do_select_tests e_select-1.8 { |
| 1a "SELECT count(*) FROM t7 JOIN t8 ON (t7.a=t8.a)" {1} |
| 1b "SELECT count(*) FROM t7 LEFT JOIN t8 ON (t7.a=t8.a)" {2} |
| 2a "SELECT count(*) FROM t7 JOIN t8 USING (a)" {1} |
| 2b "SELECT count(*) FROM t7 LEFT JOIN t8 USING (a)" {2} |
| } |
| |
| |
| # EVIDENCE-OF: R-15607-52988 The added rows contain NULL values in the |
| # columns that would normally contain values copied from the right-hand |
| # input dataset. |
| # |
| do_select_tests e_select-1.9 { |
| 1a "SELECT * FROM t7 JOIN t8 ON (t7.a=t8.a)" {x ex 24 x abc 24} |
| 1b "SELECT * FROM t7 LEFT JOIN t8 ON (t7.a=t8.a)" |
| {x ex 24 x abc 24 y why 25 {} {} {}} |
| 2a "SELECT * FROM t7 JOIN t8 USING (a)" {x ex 24 abc 24} |
| 2b "SELECT * FROM t7 LEFT JOIN t8 USING (a)" {x ex 24 abc 24 y why 25 {} {}} |
| } |
| |
| # EVIDENCE-OF: R-01809-52134 If the NATURAL keyword is added to any of |
| # the join-ops, then an implicit USING clause is added to the |
| # join-constraints. The implicit USING clause contains each of the |
| # column names that appear in both the left and right-hand input |
| # datasets. |
| # |
| do_select_tests e_select-1-10 { |
| 1a "SELECT * FROM t7 JOIN t8 USING (a)" {x ex 24 abc 24} |
| 1b "SELECT * FROM t7 NATURAL JOIN t8" {x ex 24 abc 24} |
| |
| 2a "SELECT * FROM t8 JOIN t7 USING (a)" {x abc 24 ex 24} |
| 2b "SELECT * FROM t8 NATURAL JOIN t7" {x abc 24 ex 24} |
| |
| 3a "SELECT * FROM t7 LEFT JOIN t8 USING (a)" {x ex 24 abc 24 y why 25 {} {}} |
| 3b "SELECT * FROM t7 NATURAL LEFT JOIN t8" {x ex 24 abc 24 y why 25 {} {}} |
| |
| 4a "SELECT * FROM t8 LEFT JOIN t7 USING (a)" {x abc 24 ex 24 z ghi 26 {} {}} |
| 4b "SELECT * FROM t8 NATURAL LEFT JOIN t7" {x abc 24 ex 24 z ghi 26 {} {}} |
| |
| 5a "SELECT * FROM t3 JOIN t4 USING (a,c)" {b 2} |
| 5b "SELECT * FROM t3 NATURAL JOIN t4" {b 2} |
| |
| 6a "SELECT * FROM t3 LEFT JOIN t4 USING (a,c)" {a 1 b 2} |
| 6b "SELECT * FROM t3 NATURAL LEFT JOIN t4" {a 1 b 2} |
| } |
| |
| # EVIDENCE-OF: R-49566-01570 If the left and right-hand input datasets |
| # feature no common column names, then the NATURAL keyword has no effect |
| # on the results of the join. |
| # |
| do_execsql_test e_select-1.11.0 { |
| CREATE TABLE t10(x, y); |
| INSERT INTO t10 VALUES(1, 'true'); |
| INSERT INTO t10 VALUES(0, 'false'); |
| } {} |
| do_select_tests e_select-1-11 { |
| 1a "SELECT a, x FROM t1 CROSS JOIN t10" {a 1 a 0 b 1 b 0 c 1 c 0} |
| 1b "SELECT a, x FROM t1 NATURAL CROSS JOIN t10" {a 1 a 0 b 1 b 0 c 1 c 0} |
| } |
| |
| # EVIDENCE-OF: R-39625-59133 A USING or ON clause may not be added to a |
| # join that specifies the NATURAL keyword. |
| # |
| foreach {tn sql} { |
| 1 {SELECT * FROM t1 NATURAL LEFT JOIN t2 USING (a)} |
| 2 {SELECT * FROM t1 NATURAL LEFT JOIN t2 ON (t1.a=t2.a)} |
| 3 {SELECT * FROM t1 NATURAL LEFT JOIN t2 ON (45)} |
| } { |
| do_catchsql_test e_select-1.12.$tn " |
| $sql |
| " {1 {a NATURAL join may not have an ON or USING clause}} |
| } |
| |
| #------------------------------------------------------------------------- |
| # The next block of tests - e_select-3.* - concentrate on verifying |
| # statements made regarding WHERE clause processing. |
| # |
| drop_all_tables |
| do_execsql_test e_select-3.0 { |
| CREATE TABLE x1(k, x, y, z); |
| INSERT INTO x1 VALUES(1, 'relinquished', 'aphasia', 78.43); |
| INSERT INTO x1 VALUES(2, X'A8E8D66F', X'07CF', -81); |
| INSERT INTO x1 VALUES(3, -22, -27.57, NULL); |
| INSERT INTO x1 VALUES(4, NULL, 'bygone', 'picky'); |
| INSERT INTO x1 VALUES(5, NULL, 96.28, NULL); |
| INSERT INTO x1 VALUES(6, 0, 1, 2); |
| |
| CREATE TABLE x2(k, x, y2); |
| INSERT INTO x2 VALUES(1, 50, X'B82838'); |
| INSERT INTO x2 VALUES(5, 84.79, 65.88); |
| INSERT INTO x2 VALUES(3, -22, X'0E1BE452A393'); |
| INSERT INTO x2 VALUES(7, 'mistrusted', 'standardized'); |
| } {} |
| |
| # EVIDENCE-OF: R-06999-14330 If a WHERE clause is specified, the WHERE |
| # expression is evaluated for each row in the input data as a boolean |
| # expression. All rows for which the WHERE clause expression evaluates |
| # to false are excluded from the dataset before continuing. |
| # |
| do_execsql_test e_select-3.1.1 { SELECT k FROM x1 WHERE x } {3} |
| do_execsql_test e_select-3.1.2 { SELECT k FROM x1 WHERE y } {3 5 6} |
| do_execsql_test e_select-3.1.3 { SELECT k FROM x1 WHERE z } {1 2 6} |
| do_execsql_test e_select-3.1.4 { SELECT k FROM x1 WHERE '1'||z } {1 2 4 6} |
| do_execsql_test e_select-3.1.5 { SELECT k FROM x1 WHERE x IS NULL } {4 5} |
| do_execsql_test e_select-3.1.6 { SELECT k FROM x1 WHERE z - 78.43 } {2 4 6} |
| |
| do_execsql_test e_select-3.2.1a { |
| SELECT k FROM x1 LEFT JOIN x2 USING(k) |
| } {1 2 3 4 5 6} |
| do_execsql_test e_select-3.2.1b { |
| SELECT k FROM x1 LEFT JOIN x2 USING(k) WHERE x2.k |
| } {1 3 5} |
| do_execsql_test e_select-3.2.2 { |
| SELECT k FROM x1 LEFT JOIN x2 USING(k) WHERE x2.k IS NULL |
| } {2 4 6} |
| |
| do_execsql_test e_select-3.2.3 { |
| SELECT k FROM x1 NATURAL JOIN x2 WHERE x2.k |
| } {3} |
| do_execsql_test e_select-3.2.4 { |
| SELECT k FROM x1 NATURAL JOIN x2 WHERE x2.k-3 |
| } {} |
| |
| #------------------------------------------------------------------------- |
| # Tests below this point are focused on verifying the testable statements |
| # related to caculating the result rows of a simple SELECT statement. |
| # |
| |
| drop_all_tables |
| do_execsql_test e_select-4.0 { |
| CREATE TABLE z1(a, b, c); |
| CREATE TABLE z2(d, e); |
| CREATE TABLE z3(a, b); |
| |
| INSERT INTO z1 VALUES(51.65, -59.58, 'belfries'); |
| INSERT INTO z1 VALUES(-5, NULL, 75); |
| INSERT INTO z1 VALUES(-2.2, -23.18, 'suiters'); |
| INSERT INTO z1 VALUES(NULL, 67, 'quartets'); |
| INSERT INTO z1 VALUES(-1.04, -32.3, 'aspen'); |
| INSERT INTO z1 VALUES(63, 'born', -26); |
| |
| INSERT INTO z2 VALUES(NULL, 21); |
| INSERT INTO z2 VALUES(36, 6); |
| |
| INSERT INTO z3 VALUES('subsistence', 'gauze'); |
| INSERT INTO z3 VALUES(49.17, -67); |
| } {} |
| |
| # EVIDENCE-OF: R-36327-17224 If a result expression is the special |
| # expression "*" then all columns in the input data are substituted for |
| # that one expression. |
| # |
| # EVIDENCE-OF: R-43693-30522 If the expression is the alias of a table |
| # or subquery in the FROM clause followed by ".*" then all columns from |
| # the named table or subquery are substituted for the single expression. |
| # |
| do_select_tests e_select-4.1 { |
| 1 "SELECT * FROM z1 LIMIT 1" {51.65 -59.58 belfries} |
| 2 "SELECT * FROM z1,z2 LIMIT 1" {51.65 -59.58 belfries {} 21} |
| 3 "SELECT z1.* FROM z1,z2 LIMIT 1" {51.65 -59.58 belfries} |
| 4 "SELECT z2.* FROM z1,z2 LIMIT 1" {{} 21} |
| 5 "SELECT z2.*, z1.* FROM z1,z2 LIMIT 1" {{} 21 51.65 -59.58 belfries} |
| |
| 6 "SELECT count(*), * FROM z1" {6 63 born -26} |
| 7 "SELECT max(a), * FROM z1" {63 63 born -26} |
| 8 "SELECT *, min(a) FROM z1" {63 born -26 -5} |
| |
| 9 "SELECT *,* FROM z1,z2 LIMIT 1" { |
| 51.65 -59.58 belfries {} 21 51.65 -59.58 belfries {} 21 |
| } |
| 10 "SELECT z1.*,z1.* FROM z2,z1 LIMIT 1" { |
| 51.65 -59.58 belfries 51.65 -59.58 belfries |
| } |
| } |
| |
| # EVIDENCE-OF: R-61869-22578 It is an error to use a "*" or "alias.*" |
| # expression in any context other than than a result expression list. |
| # |
| # EVIDENCE-OF: R-44324-41166 It is also an error to use a "*" or |
| # "alias.*" expression in a simple SELECT query that does not have a |
| # FROM clause. |
| # |
| foreach {tn select err} { |
| 1.1 "SELECT a, b, c FROM z1 WHERE *" {near "*": syntax error} |
| 1.2 "SELECT a, b, c FROM z1 GROUP BY *" {near "*": syntax error} |
| 1.3 "SELECT 1 + * FROM z1" {near "*": syntax error} |
| 1.4 "SELECT * + 1 FROM z1" {near "+": syntax error} |
| |
| 2.1 "SELECT *" {no tables specified} |
| 2.2 "SELECT * WHERE 1" {no tables specified} |
| 2.3 "SELECT * WHERE 0" {no tables specified} |
| 2.4 "SELECT count(*), *" {no tables specified} |
| } { |
| do_catchsql_test e_select-4.2.$tn $select [list 1 $err] |
| } |
| |
| # EVIDENCE-OF: R-08669-22397 The number of columns in the rows returned |
| # by a simple SELECT statement is equal to the number of expressions in |
| # the result expression list after substitution of * and alias.* |
| # expressions. |
| # |
| foreach {tn select nCol} { |
| 1 "SELECT * FROM z1" 3 |
| 2 "SELECT * FROM z1 NATURAL JOIN z3" 3 |
| 3 "SELECT z1.* FROM z1 NATURAL JOIN z3" 3 |
| 4 "SELECT z3.* FROM z1 NATURAL JOIN z3" 2 |
| 5 "SELECT z1.*, z3.* FROM z1 NATURAL JOIN z3" 5 |
| 6 "SELECT 1, 2, z1.* FROM z1" 5 |
| 7 "SELECT a, *, b, c FROM z1" 6 |
| } { |
| set ::stmt [sqlite3_prepare_v2 db $select -1 DUMMY] |
| do_test e_select-4.3.$tn { sqlite3_column_count $::stmt } $nCol |
| sqlite3_finalize $::stmt |
| } |
| |
| |
| |
| # In lang_select.html, a non-aggregate query is defined as any simple SELECT |
| # that has no GROUP BY clause and no aggregate expressions in the result |
| # expression list. Other queries are aggregate queries. Test cases |
| # e_select-4.4.* through e_select-4.12.*, inclusive, which test the part of |
| # simple SELECT that is different for aggregate and non-aggregate queries |
| # verify (in a way) that these definitions are consistent: |
| # |
| # EVIDENCE-OF: R-20637-43463 A simple SELECT statement is an aggregate |
| # query if it contains either a GROUP BY clause or one or more aggregate |
| # functions in the result-set. |
| # |
| # EVIDENCE-OF: R-23155-55597 Otherwise, if a simple SELECT contains no |
| # aggregate functions or a GROUP BY clause, it is a non-aggregate query. |
| # |
| |
| # EVIDENCE-OF: R-44050-47362 If the SELECT statement is a non-aggregate |
| # query, then each expression in the result expression list is evaluated |
| # for each row in the dataset filtered by the WHERE clause. |
| # |
| do_select_tests e_select-4.4 { |
| 1 "SELECT a, b FROM z1" |
| {51.65 -59.58 -5 {} -2.2 -23.18 {} 67 -1.04 -32.3 63 born} |
| |
| 2 "SELECT a IS NULL, b+1, * FROM z1" { |
| 0 -58.58 51.65 -59.58 belfries |
| 0 {} -5 {} 75 |
| 0 -22.18 -2.2 -23.18 suiters |
| 1 68 {} 67 quartets |
| 0 -31.3 -1.04 -32.3 aspen |
| 0 1 63 born -26 |
| } |
| |
| 3 "SELECT 32*32, d||e FROM z2" {1024 {} 1024 366} |
| } |
| |
| |
| # Test cases e_select-4.5.* and e_select-4.6.* together show that: |
| # |
| # EVIDENCE-OF: R-51988-01124 The single row of result-set data created |
| # by evaluating the aggregate and non-aggregate expressions in the |
| # result-set forms the result of an aggregate query without a GROUP BY |
| # clause. |
| # |
| |
| # EVIDENCE-OF: R-57629-25253 If the SELECT statement is an aggregate |
| # query without a GROUP BY clause, then each aggregate expression in the |
| # result-set is evaluated once across the entire dataset. |
| # |
| do_select_tests e_select-4.5 { |
| 1 "SELECT count(a), max(a), count(b), max(b) FROM z1" {5 63 5 born} |
| 2 "SELECT count(*), max(1)" {1 1} |
| |
| 3 "SELECT sum(b+1) FROM z1 NATURAL LEFT JOIN z3" {-43.06} |
| 4 "SELECT sum(b+2) FROM z1 NATURAL LEFT JOIN z3" {-38.06} |
| 5 "SELECT sum(b IS NOT NULL) FROM z1 NATURAL LEFT JOIN z3" {5} |
| } |
| |
| # EVIDENCE-OF: R-26684-40576 Each non-aggregate expression in the |
| # result-set is evaluated once for an arbitrarily selected row of the |
| # dataset. |
| # |
| # EVIDENCE-OF: R-27994-60376 The same arbitrarily selected row is used |
| # for each non-aggregate expression. |
| # |
| # Note: The results of many of the queries in this block of tests are |
| # technically undefined, as the documentation does not specify which row |
| # SQLite will arbitrarily select to use for the evaluation of the |
| # non-aggregate expressions. |
| # |
| drop_all_tables |
| do_execsql_test e_select-4.6.0 { |
| CREATE TABLE a1(one PRIMARY KEY, two); |
| INSERT INTO a1 VALUES(1, 1); |
| INSERT INTO a1 VALUES(2, 3); |
| INSERT INTO a1 VALUES(3, 6); |
| INSERT INTO a1 VALUES(4, 10); |
| |
| CREATE TABLE a2(one PRIMARY KEY, three); |
| INSERT INTO a2 VALUES(1, 1); |
| INSERT INTO a2 VALUES(3, 2); |
| INSERT INTO a2 VALUES(6, 3); |
| INSERT INTO a2 VALUES(10, 4); |
| } {} |
| do_select_tests e_select-4.6 { |
| 1 "SELECT one, two, count(*) FROM a1" {4 10 4} |
| 2 "SELECT one, two, count(*) FROM a1 WHERE one<3" {2 3 2} |
| 3 "SELECT one, two, count(*) FROM a1 WHERE one>3" {4 10 1} |
| 4 "SELECT *, count(*) FROM a1 JOIN a2" {4 10 10 4 16} |
| 5 "SELECT *, sum(three) FROM a1 NATURAL JOIN a2" {3 6 2 3} |
| 6 "SELECT *, sum(three) FROM a1 NATURAL JOIN a2" {3 6 2 3} |
| 7 "SELECT group_concat(three, ''), a1.* FROM a1 NATURAL JOIN a2" {12 3 6} |
| } |
| |
| # EVIDENCE-OF: R-04486-07266 Or, if the dataset contains zero rows, then |
| # each non-aggregate expression is evaluated against a row consisting |
| # entirely of NULL values. |
| # |
| do_select_tests e_select-4.7 { |
| 1 "SELECT one, two, count(*) FROM a1 WHERE 0" {{} {} 0} |
| 2 "SELECT sum(two), * FROM a1, a2 WHERE three>5" {{} {} {} {} {}} |
| 3 "SELECT max(one) IS NULL, one IS NULL, two IS NULL FROM a1 WHERE two=7" { |
| 1 1 1 |
| } |
| } |
| |
| # EVIDENCE-OF: R-64138-28774 An aggregate query without a GROUP BY |
| # clause always returns exactly one row of data, even if there are zero |
| # rows of input data. |
| # |
| foreach {tn select} { |
| 8.1 "SELECT count(*) FROM a1" |
| 8.2 "SELECT count(*) FROM a1 WHERE 0" |
| 8.3 "SELECT count(*) FROM a1 WHERE 1" |
| 8.4 "SELECT max(a1.one)+min(two), a1.one, two, * FROM a1, a2 WHERE 1" |
| 8.5 "SELECT max(a1.one)+min(two), a1.one, two, * FROM a1, a2 WHERE 0" |
| } { |
| # Set $nRow to the number of rows returned by $select: |
| set ::stmt [sqlite3_prepare_v2 db $select -1 DUMMY] |
| set nRow 0 |
| while {"SQLITE_ROW" == [sqlite3_step $::stmt]} { incr nRow } |
| set rc [sqlite3_finalize $::stmt] |
| |
| # Test that $nRow==1 and that statement execution was successful |
| # (rc==SQLITE_OK). |
| do_test e_select-4.$tn [list list $rc $nRow] {SQLITE_OK 1} |
| } |
| |
| drop_all_tables |
| do_execsql_test e_select-4.9.0 { |
| CREATE TABLE b1(one PRIMARY KEY, two); |
| INSERT INTO b1 VALUES(1, 'o'); |
| INSERT INTO b1 VALUES(4, 'f'); |
| INSERT INTO b1 VALUES(3, 't'); |
| INSERT INTO b1 VALUES(2, 't'); |
| INSERT INTO b1 VALUES(5, 'f'); |
| INSERT INTO b1 VALUES(7, 's'); |
| INSERT INTO b1 VALUES(6, 's'); |
| |
| CREATE TABLE b2(x, y); |
| INSERT INTO b2 VALUES(NULL, 0); |
| INSERT INTO b2 VALUES(NULL, 1); |
| INSERT INTO b2 VALUES('xyz', 2); |
| INSERT INTO b2 VALUES('abc', 3); |
| INSERT INTO b2 VALUES('xyz', 4); |
| |
| CREATE TABLE b3(a COLLATE nocase, b COLLATE binary); |
| INSERT INTO b3 VALUES('abc', 'abc'); |
| INSERT INTO b3 VALUES('aBC', 'aBC'); |
| INSERT INTO b3 VALUES('Def', 'Def'); |
| INSERT INTO b3 VALUES('dEF', 'dEF'); |
| } {} |
| |
| # EVIDENCE-OF: R-57754-57109 If the SELECT statement is an aggregate |
| # query with a GROUP BY clause, then each of the expressions specified |
| # as part of the GROUP BY clause is evaluated for each row of the |
| # dataset. Each row is then assigned to a "group" based on the results; |
| # rows for which the results of evaluating the GROUP BY expressions are |
| # the same are assigned to the same group. |
| # |
| # These tests also show that the following is not untrue: |
| # |
| # EVIDENCE-OF: R-25883-55063 The expressions in the GROUP BY clause do |
| # not have to be expressions that appear in the result. |
| # |
| do_select_tests e_select-4.9 { |
| 1 "SELECT group_concat(one), two FROM b1 GROUP BY two" { |
| 4,5 f 1 o 7,6 s 3,2 t |
| } |
| 2 "SELECT group_concat(one), sum(one) FROM b1 GROUP BY (one>4)" { |
| 1,4,3,2 10 5,7,6 18 |
| } |
| 3 "SELECT group_concat(one) FROM b1 GROUP BY (two>'o'), one%2" { |
| 4 1,5 2,6 3,7 |
| } |
| 4 "SELECT group_concat(one) FROM b1 GROUP BY (one==2 OR two=='o')" { |
| 4,3,5,7,6 1,2 |
| } |
| } |
| |
| # EVIDENCE-OF: R-14926-50129 For the purposes of grouping rows, NULL |
| # values are considered equal. |
| # |
| do_select_tests e_select-4.10 { |
| 1 "SELECT group_concat(y) FROM b2 GROUP BY x" {0,1 3 2,4} |
| 2 "SELECT count(*) FROM b2 GROUP BY CASE WHEN y<4 THEN NULL ELSE 0 END" {4 1} |
| } |
| |
| # EVIDENCE-OF: R-10470-30318 The usual rules for selecting a collation |
| # sequence with which to compare text values apply when evaluating |
| # expressions in a GROUP BY clause. |
| # |
| do_select_tests e_select-4.11 { |
| 1 "SELECT count(*) FROM b3 GROUP BY b" {1 1 1 1} |
| 2 "SELECT count(*) FROM b3 GROUP BY a" {2 2} |
| 3 "SELECT count(*) FROM b3 GROUP BY +b" {1 1 1 1} |
| 4 "SELECT count(*) FROM b3 GROUP BY +a" {2 2} |
| 5 "SELECT count(*) FROM b3 GROUP BY b||''" {1 1 1 1} |
| 6 "SELECT count(*) FROM b3 GROUP BY a||''" {1 1 1 1} |
| } |
| |
| # EVIDENCE-OF: R-63573-50730 The expressions in a GROUP BY clause may |
| # not be aggregate expressions. |
| # |
| foreach {tn select} { |
| 12.1 "SELECT * FROM b3 GROUP BY count(*)" |
| 12.2 "SELECT max(a) FROM b3 GROUP BY max(b)" |
| 12.3 "SELECT group_concat(a) FROM b3 GROUP BY a, max(b)" |
| } { |
| set res {1 {aggregate functions are not allowed in the GROUP BY clause}} |
| do_catchsql_test e_select-4.$tn $select $res |
| } |
| |
| # EVIDENCE-OF: R-31537-00101 If a HAVING clause is specified, it is |
| # evaluated once for each group of rows as a boolean expression. If the |
| # result of evaluating the HAVING clause is false, the group is |
| # discarded. |
| # |
| # This requirement is tested by all e_select-4.13.* tests. |
| # |
| # EVIDENCE-OF: R-04132-09474 If the HAVING clause is an aggregate |
| # expression, it is evaluated across all rows in the group. |
| # |
| # Tested by e_select-4.13.1.* |
| # |
| # EVIDENCE-OF: R-28262-47447 If a HAVING clause is a non-aggregate |
| # expression, it is evaluated with respect to an arbitrarily selected |
| # row from the group. |
| # |
| # Tested by e_select-4.13.2.* |
| # |
| # Tests in this block also show that this is not untrue: |
| # |
| # EVIDENCE-OF: R-55403-13450 The HAVING expression may refer to values, |
| # even aggregate functions, that are not in the result. |
| # |
| do_execsql_test e_select-4.13.0 { |
| CREATE TABLE c1(up, down); |
| INSERT INTO c1 VALUES('x', 1); |
| INSERT INTO c1 VALUES('x', 2); |
| INSERT INTO c1 VALUES('x', 4); |
| INSERT INTO c1 VALUES('x', 8); |
| INSERT INTO c1 VALUES('y', 16); |
| INSERT INTO c1 VALUES('y', 32); |
| |
| CREATE TABLE c2(i, j); |
| INSERT INTO c2 VALUES(1, 0); |
| INSERT INTO c2 VALUES(2, 1); |
| INSERT INTO c2 VALUES(3, 3); |
| INSERT INTO c2 VALUES(4, 6); |
| INSERT INTO c2 VALUES(5, 10); |
| INSERT INTO c2 VALUES(6, 15); |
| INSERT INTO c2 VALUES(7, 21); |
| INSERT INTO c2 VALUES(8, 28); |
| INSERT INTO c2 VALUES(9, 36); |
| |
| CREATE TABLE c3(i PRIMARY KEY, k TEXT); |
| INSERT INTO c3 VALUES(1, 'hydrogen'); |
| INSERT INTO c3 VALUES(2, 'helium'); |
| INSERT INTO c3 VALUES(3, 'lithium'); |
| INSERT INTO c3 VALUES(4, 'beryllium'); |
| INSERT INTO c3 VALUES(5, 'boron'); |
| INSERT INTO c3 VALUES(94, 'plutonium'); |
| } {} |
| |
| do_select_tests e_select-4.13 { |
| 1.1 "SELECT up FROM c1 GROUP BY up HAVING count(*)>3" {x} |
| 1.2 "SELECT up FROM c1 GROUP BY up HAVING sum(down)>16" {y} |
| 1.3 "SELECT up FROM c1 GROUP BY up HAVING sum(down)<16" {x} |
| 1.4 "SELECT up||down FROM c1 GROUP BY (down<5) HAVING max(down)<10" {x4} |
| |
| 2.1 "SELECT up FROM c1 GROUP BY up HAVING down>10" {y} |
| 2.2 "SELECT up FROM c1 GROUP BY up HAVING up='y'" {y} |
| |
| 2.3 "SELECT i, j FROM c2 GROUP BY i>4 HAVING i>6" {9 36} |
| } |
| |
| # EVIDENCE-OF: R-23927-54081 Each expression in the result-set is then |
| # evaluated once for each group of rows. |
| # |
| # EVIDENCE-OF: R-53735-47017 If the expression is an aggregate |
| # expression, it is evaluated across all rows in the group. |
| # |
| do_select_tests e_select-4.15 { |
| 1 "SELECT sum(down) FROM c1 GROUP BY up" {15 48} |
| 2 "SELECT sum(j), max(j) FROM c2 GROUP BY (i%3)" {54 36 27 21 39 28} |
| 3 "SELECT sum(j), max(j) FROM c2 GROUP BY (j%2)" {80 36 40 21} |
| 4 "SELECT 1+sum(j), max(j)+1 FROM c2 GROUP BY (j%2)" {81 37 41 22} |
| 5 "SELECT count(*), round(avg(i),2) FROM c1, c2 ON (i=down) GROUP BY j%2" |
| {3 4.33 1 2.0} |
| } |
| |
| # EVIDENCE-OF: R-62913-19830 Otherwise, it is evaluated against a single |
| # arbitrarily chosen row from within the group. |
| # |
| # EVIDENCE-OF: R-53924-08809 If there is more than one non-aggregate |
| # expression in the result-set, then all such expressions are evaluated |
| # for the same row. |
| # |
| do_select_tests e_select-4.15 { |
| 1 "SELECT i, j FROM c2 GROUP BY i%2" {8 28 9 36} |
| 2 "SELECT i, j FROM c2 GROUP BY i%2 HAVING j<30" {8 28} |
| 3 "SELECT i, j FROM c2 GROUP BY i%2 HAVING j>30" {9 36} |
| 4 "SELECT i, j FROM c2 GROUP BY i%2 HAVING j>30" {9 36} |
| 5 "SELECT count(*), i, k FROM c2 NATURAL JOIN c3 GROUP BY substr(k, 1, 1)" |
| {2 5 boron 2 2 helium 1 3 lithium} |
| } |
| |
| # EVIDENCE-OF: R-19334-12811 Each group of input dataset rows |
| # contributes a single row to the set of result rows. |
| # |
| # EVIDENCE-OF: R-02223-49279 Subject to filtering associated with the |
| # DISTINCT keyword, the number of rows returned by an aggregate query |
| # with a GROUP BY clause is the same as the number of groups of rows |
| # produced by applying the GROUP BY and HAVING clauses to the filtered |
| # input dataset. |
| # |
| do_select_tests e_select.4.16 -count { |
| 1 "SELECT i, j FROM c2 GROUP BY i%2" 2 |
| 2 "SELECT i, j FROM c2 GROUP BY i" 9 |
| 3 "SELECT i, j FROM c2 GROUP BY i HAVING i<5" 4 |
| } |
| |
| #------------------------------------------------------------------------- |
| # The following tests attempt to verify statements made regarding the ALL |
| # and DISTINCT keywords. |
| # |
| drop_all_tables |
| do_execsql_test e_select-5.1.0 { |
| CREATE TABLE h1(a, b); |
| INSERT INTO h1 VALUES(1, 'one'); |
| INSERT INTO h1 VALUES(1, 'I'); |
| INSERT INTO h1 VALUES(1, 'i'); |
| INSERT INTO h1 VALUES(4, 'four'); |
| INSERT INTO h1 VALUES(4, 'IV'); |
| INSERT INTO h1 VALUES(4, 'iv'); |
| |
| CREATE TABLE h2(x COLLATE nocase); |
| INSERT INTO h2 VALUES('One'); |
| INSERT INTO h2 VALUES('Two'); |
| INSERT INTO h2 VALUES('Three'); |
| INSERT INTO h2 VALUES('Four'); |
| INSERT INTO h2 VALUES('one'); |
| INSERT INTO h2 VALUES('two'); |
| INSERT INTO h2 VALUES('three'); |
| INSERT INTO h2 VALUES('four'); |
| |
| CREATE TABLE h3(c, d); |
| INSERT INTO h3 VALUES(1, NULL); |
| INSERT INTO h3 VALUES(2, NULL); |
| INSERT INTO h3 VALUES(3, NULL); |
| INSERT INTO h3 VALUES(4, '2'); |
| INSERT INTO h3 VALUES(5, NULL); |
| INSERT INTO h3 VALUES(6, '2,3'); |
| INSERT INTO h3 VALUES(7, NULL); |
| INSERT INTO h3 VALUES(8, '2,4'); |
| INSERT INTO h3 VALUES(9, '3'); |
| } {} |
| |
| # EVIDENCE-OF: R-60770-10612 One of the ALL or DISTINCT keywords may |
| # follow the SELECT keyword in a simple SELECT statement. |
| # |
| do_select_tests e_select-5.1 { |
| 1 "SELECT ALL a FROM h1" {1 1 1 4 4 4} |
| 2 "SELECT DISTINCT a FROM h1" {1 4} |
| } |
| |
| # EVIDENCE-OF: R-08861-34280 If the simple SELECT is a SELECT ALL, then |
| # the entire set of result rows are returned by the SELECT. |
| # |
| # EVIDENCE-OF: R-47911-02086 If neither ALL or DISTINCT are present, |
| # then the behaviour is as if ALL were specified. |
| # |
| # EVIDENCE-OF: R-14442-41305 If the simple SELECT is a SELECT DISTINCT, |
| # then duplicate rows are removed from the set of result rows before it |
| # is returned. |
| # |
| # The three testable statements above are tested by e_select-5.2.*, |
| # 5.3.* and 5.4.* respectively. |
| # |
| do_select_tests e_select-5 { |
| 3.1 "SELECT ALL x FROM h2" {One Two Three Four one two three four} |
| 3.2 "SELECT ALL x FROM h1, h2 ON (x=b)" {One one Four four} |
| |
| 3.1 "SELECT x FROM h2" {One Two Three Four one two three four} |
| 3.2 "SELECT x FROM h1, h2 ON (x=b)" {One one Four four} |
| |
| 4.1 "SELECT DISTINCT x FROM h2" {four one three two} |
| 4.2 "SELECT DISTINCT x FROM h1, h2 ON (x=b)" {four one} |
| } |
| |
| # EVIDENCE-OF: R-02054-15343 For the purposes of detecting duplicate |
| # rows, two NULL values are considered to be equal. |
| # |
| do_select_tests e_select-5.5 { |
| 1 "SELECT DISTINCT d FROM h3" {{} 2 2,3 2,4 3} |
| } |
| |
| # EVIDENCE-OF: R-58359-52112 The normal rules for selecting a collation |
| # sequence to compare text values with apply. |
| # |
| do_select_tests e_select-5.6 { |
| 1 "SELECT DISTINCT b FROM h1" {I IV four i iv one} |
| 2 "SELECT DISTINCT b COLLATE nocase FROM h1" {four i iv one} |
| 3 "SELECT DISTINCT x FROM h2" {four one three two} |
| 4 "SELECT DISTINCT x COLLATE binary FROM h2" { |
| Four One Three Two four one three two |
| } |
| } |
| |
| #------------------------------------------------------------------------- |
| # The following tests - e_select-7.* - test that statements made to do |
| # with compound SELECT statements are correct. |
| # |
| |
| # EVIDENCE-OF: R-39368-64333 In a compound SELECT, all the constituent |
| # SELECTs must return the same number of result columns. |
| # |
| # All the other tests in this section use compound SELECTs created |
| # using component SELECTs that do return the same number of columns. |
| # So the tests here just show that it is an error to attempt otherwise. |
| # |
| drop_all_tables |
| do_execsql_test e_select-7.1.0 { |
| CREATE TABLE j1(a, b, c); |
| CREATE TABLE j2(e, f); |
| CREATE TABLE j3(g); |
| } {} |
| do_select_tests e_select-7.1 -error { |
| SELECTs to the left and right of %s do not have the same number of result columns |
| } { |
| 1 "SELECT a, b FROM j1 UNION ALL SELECT g FROM j3" {{UNION ALL}} |
| 2 "SELECT * FROM j1 UNION ALL SELECT * FROM j3" {{UNION ALL}} |
| 3 "SELECT a, b FROM j1 UNION ALL SELECT g FROM j3" {{UNION ALL}} |
| 4 "SELECT a, b FROM j1 UNION ALL SELECT * FROM j3,j2" {{UNION ALL}} |
| 5 "SELECT * FROM j3,j2 UNION ALL SELECT a, b FROM j1" {{UNION ALL}} |
| |
| 6 "SELECT a, b FROM j1 UNION SELECT g FROM j3" {UNION} |
| 7 "SELECT * FROM j1 UNION SELECT * FROM j3" {UNION} |
| 8 "SELECT a, b FROM j1 UNION SELECT g FROM j3" {UNION} |
| 9 "SELECT a, b FROM j1 UNION SELECT * FROM j3,j2" {UNION} |
| 10 "SELECT * FROM j3,j2 UNION SELECT a, b FROM j1" {UNION} |
| |
| 11 "SELECT a, b FROM j1 INTERSECT SELECT g FROM j3" {INTERSECT} |
| 12 "SELECT * FROM j1 INTERSECT SELECT * FROM j3" {INTERSECT} |
| 13 "SELECT a, b FROM j1 INTERSECT SELECT g FROM j3" {INTERSECT} |
| 14 "SELECT a, b FROM j1 INTERSECT SELECT * FROM j3,j2" {INTERSECT} |
| 15 "SELECT * FROM j3,j2 INTERSECT SELECT a, b FROM j1" {INTERSECT} |
| |
| 16 "SELECT a, b FROM j1 EXCEPT SELECT g FROM j3" {EXCEPT} |
| 17 "SELECT * FROM j1 EXCEPT SELECT * FROM j3" {EXCEPT} |
| 18 "SELECT a, b FROM j1 EXCEPT SELECT g FROM j3" {EXCEPT} |
| 19 "SELECT a, b FROM j1 EXCEPT SELECT * FROM j3,j2" {EXCEPT} |
| 20 "SELECT * FROM j3,j2 EXCEPT SELECT a, b FROM j1" {EXCEPT} |
| } |
| |
| # EVIDENCE-OF: R-01450-11152 As the components of a compound SELECT must |
| # be simple SELECT statements, they may not contain ORDER BY or LIMIT |
| # clauses. |
| # |
| foreach {tn select op1 op2} { |
| 1 "SELECT * FROM j1 ORDER BY a UNION ALL SELECT * FROM j2,j3" |
| {ORDER BY} {UNION ALL} |
| 2 "SELECT count(*) FROM j1 ORDER BY 1 UNION ALL SELECT max(e) FROM j2" |
| {ORDER BY} {UNION ALL} |
| 3 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 UNION ALL SELECT *,* FROM j2" |
| {ORDER BY} {UNION ALL} |
| 4 "SELECT * FROM j1 LIMIT 10 UNION ALL SELECT * FROM j2,j3" |
| LIMIT {UNION ALL} |
| 5 "SELECT * FROM j1 LIMIT 10 OFFSET 5 UNION ALL SELECT * FROM j2,j3" |
| LIMIT {UNION ALL} |
| 6 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) UNION ALL SELECT g FROM j2,j3" |
| LIMIT {UNION ALL} |
| |
| 7 "SELECT * FROM j1 ORDER BY a UNION SELECT * FROM j2,j3" |
| {ORDER BY} {UNION} |
| 8 "SELECT count(*) FROM j1 ORDER BY 1 UNION SELECT max(e) FROM j2" |
| {ORDER BY} {UNION} |
| 9 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 UNION SELECT *,* FROM j2" |
| {ORDER BY} {UNION} |
| 10 "SELECT * FROM j1 LIMIT 10 UNION SELECT * FROM j2,j3" |
| LIMIT {UNION} |
| 11 "SELECT * FROM j1 LIMIT 10 OFFSET 5 UNION SELECT * FROM j2,j3" |
| LIMIT {UNION} |
| 12 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) UNION SELECT g FROM j2,j3" |
| LIMIT {UNION} |
| |
| 13 "SELECT * FROM j1 ORDER BY a EXCEPT SELECT * FROM j2,j3" |
| {ORDER BY} {EXCEPT} |
| 14 "SELECT count(*) FROM j1 ORDER BY 1 EXCEPT SELECT max(e) FROM j2" |
| {ORDER BY} {EXCEPT} |
| 15 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 EXCEPT SELECT *,* FROM j2" |
| {ORDER BY} {EXCEPT} |
| 16 "SELECT * FROM j1 LIMIT 10 EXCEPT SELECT * FROM j2,j3" |
| LIMIT {EXCEPT} |
| 17 "SELECT * FROM j1 LIMIT 10 OFFSET 5 EXCEPT SELECT * FROM j2,j3" |
| LIMIT {EXCEPT} |
| 18 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) EXCEPT SELECT g FROM j2,j3" |
| LIMIT {EXCEPT} |
| |
| 19 "SELECT * FROM j1 ORDER BY a INTERSECT SELECT * FROM j2,j3" |
| {ORDER BY} {INTERSECT} |
| 20 "SELECT count(*) FROM j1 ORDER BY 1 INTERSECT SELECT max(e) FROM j2" |
| {ORDER BY} {INTERSECT} |
| 21 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 INTERSECT SELECT *,* FROM j2" |
| {ORDER BY} {INTERSECT} |
| 22 "SELECT * FROM j1 LIMIT 10 INTERSECT SELECT * FROM j2,j3" |
| LIMIT {INTERSECT} |
| 23 "SELECT * FROM j1 LIMIT 10 OFFSET 5 INTERSECT SELECT * FROM j2,j3" |
| LIMIT {INTERSECT} |
| 24 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) INTERSECT SELECT g FROM j2,j3" |
| LIMIT {INTERSECT} |
| } { |
| set err "$op1 clause should come after $op2 not before" |
| do_catchsql_test e_select-7.2.$tn $select [list 1 $err] |
| } |
| |
| # EVIDENCE-OF: R-22874-32655 ORDER BY and LIMIT clauses may only occur |
| # at the end of the entire compound SELECT. |
| # |
| foreach {tn select} { |
| 1 "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 ORDER BY a" |
| 2 "SELECT count(*) FROM j1 UNION ALL SELECT max(e) FROM j2 ORDER BY 1" |
| 3 "SELECT count(*), * FROM j1 UNION ALL SELECT *,* FROM j2 ORDER BY 1,2,3" |
| 4 "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 LIMIT 10" |
| 5 "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" |
| 6 "SELECT a FROM j1 UNION ALL SELECT g FROM j2,j3 LIMIT (SELECT 10)" |
| |
| 7 "SELECT * FROM j1 UNION SELECT * FROM j2,j3 ORDER BY a" |
| 8 "SELECT count(*) FROM j1 UNION SELECT max(e) FROM j2 ORDER BY 1" |
| 9 "SELECT count(*), * FROM j1 UNION SELECT *,* FROM j2 ORDER BY 1,2,3" |
| 10 "SELECT * FROM j1 UNION SELECT * FROM j2,j3 LIMIT 10" |
| 11 "SELECT * FROM j1 UNION SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" |
| 12 "SELECT a FROM j1 UNION SELECT g FROM j2,j3 LIMIT (SELECT 10)" |
| |
| 13 "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 ORDER BY a" |
| 14 "SELECT count(*) FROM j1 EXCEPT SELECT max(e) FROM j2 ORDER BY 1" |
| 15 "SELECT count(*), * FROM j1 EXCEPT SELECT *,* FROM j2 ORDER BY 1,2,3" |
| 16 "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 LIMIT 10" |
| 17 "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" |
| 18 "SELECT a FROM j1 EXCEPT SELECT g FROM j2,j3 LIMIT (SELECT 10)" |
| |
| 19 "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 ORDER BY a" |
| 20 "SELECT count(*) FROM j1 INTERSECT SELECT max(e) FROM j2 ORDER BY 1" |
| 21 "SELECT count(*), * FROM j1 INTERSECT SELECT *,* FROM j2 ORDER BY 1,2,3" |
| 22 "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 LIMIT 10" |
| 23 "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" |
| 24 "SELECT a FROM j1 INTERSECT SELECT g FROM j2,j3 LIMIT (SELECT 10)" |
| } { |
| do_test e_select-7.3.$tn { catch {execsql $select} msg } 0 |
| } |
| |
| # EVIDENCE-OF: R-08531-36543 A compound SELECT created using UNION ALL |
| # operator returns all the rows from the SELECT to the left of the UNION |
| # ALL operator, and all the rows from the SELECT to the right of it. |
| # |
| drop_all_tables |
| do_execsql_test e_select-7.4.0 { |
| CREATE TABLE q1(a TEXT, b INTEGER, c); |
| CREATE TABLE q2(d NUMBER, e BLOB); |
| CREATE TABLE q3(f REAL, g); |
| |
| INSERT INTO q1 VALUES(16, -87.66, NULL); |
| INSERT INTO q1 VALUES('legible', 94, -42.47); |
| INSERT INTO q1 VALUES('beauty', 36, NULL); |
| |
| INSERT INTO q2 VALUES('legible', 1); |
| INSERT INTO q2 VALUES('beauty', 2); |
| INSERT INTO q2 VALUES(-65.91, 4); |
| INSERT INTO q2 VALUES('emanating', -16.56); |
| |
| INSERT INTO q3 VALUES('beauty', 2); |
| INSERT INTO q3 VALUES('beauty', 2); |
| } {} |
| do_select_tests e_select-7.4 { |
| 1 {SELECT a FROM q1 UNION ALL SELECT d FROM q2} |
| {16 legible beauty legible beauty -65.91 emanating} |
| |
| 2 {SELECT * FROM q1 WHERE a=16 UNION ALL SELECT 'x', * FROM q2 WHERE oid=1} |
| {16 -87.66 {} x legible 1} |
| |
| 3 {SELECT count(*) FROM q1 UNION ALL SELECT min(e) FROM q2} |
| {3 -16.56} |
| |
| 4 {SELECT * FROM q2 UNION ALL SELECT * FROM q3} |
| {legible 1 beauty 2 -65.91 4 emanating -16.56 beauty 2 beauty 2} |
| } |
| |
| # EVIDENCE-OF: R-20560-39162 The UNION operator works the same way as |
| # UNION ALL, except that duplicate rows are removed from the final |
| # result set. |
| # |
| do_select_tests e_select-7.5 { |
| 1 {SELECT a FROM q1 UNION SELECT d FROM q2} |
| {-65.91 16 beauty emanating legible} |
| |
| 2 {SELECT * FROM q1 WHERE a=16 UNION SELECT 'x', * FROM q2 WHERE oid=1} |
| {16 -87.66 {} x legible 1} |
| |
| 3 {SELECT count(*) FROM q1 UNION SELECT min(e) FROM q2} |
| {-16.56 3} |
| |
| 4 {SELECT * FROM q2 UNION SELECT * FROM q3} |
| {-65.91 4 beauty 2 emanating -16.56 legible 1} |
| } |
| |
| # EVIDENCE-OF: R-45764-31737 The INTERSECT operator returns the |
| # intersection of the results of the left and right SELECTs. |
| # |
| do_select_tests e_select-7.6 { |
| 1 {SELECT a FROM q1 INTERSECT SELECT d FROM q2} {beauty legible} |
| 2 {SELECT * FROM q2 INTERSECT SELECT * FROM q3} {beauty 2} |
| } |
| |
| # EVIDENCE-OF: R-25787-28949 The EXCEPT operator returns the subset of |
| # rows returned by the left SELECT that are not also returned by the |
| # right-hand SELECT. |
| # |
| do_select_tests e_select-7.7 { |
| 1 {SELECT a FROM q1 EXCEPT SELECT d FROM q2} {16} |
| |
| 2 {SELECT * FROM q2 EXCEPT SELECT * FROM q3} |
| {-65.91 4 emanating -16.56 legible 1} |
| } |
| |
| # EVIDENCE-OF: R-40729-56447 Duplicate rows are removed from the results |
| # of INTERSECT and EXCEPT operators before the result set is returned. |
| # |
| do_select_tests e_select-7.8 { |
| 0 {SELECT * FROM q3} {beauty 2 beauty 2} |
| |
| 1 {SELECT * FROM q3 INTERSECT SELECT * FROM q3} {beauty 2} |
| 2 {SELECT * FROM q3 EXCEPT SELECT a,b FROM q1} {beauty 2} |
| } |
| |
| # EVIDENCE-OF: R-46765-43362 For the purposes of determining duplicate |
| # rows for the results of compound SELECT operators, NULL values are |
| # considered equal to other NULL values and distinct from all non-NULL |
| # values. |
| # |
| db nullvalue null |
| do_select_tests e_select-7.9 { |
| 1 {SELECT NULL UNION ALL SELECT NULL} {null null} |
| 2 {SELECT NULL UNION SELECT NULL} {null} |
| 3 {SELECT NULL INTERSECT SELECT NULL} {null} |
| 4 {SELECT NULL EXCEPT SELECT NULL} {} |
| |
| 5 {SELECT NULL UNION ALL SELECT 'ab'} {null ab} |
| 6 {SELECT NULL UNION SELECT 'ab'} {null ab} |
| 7 {SELECT NULL INTERSECT SELECT 'ab'} {} |
| 8 {SELECT NULL EXCEPT SELECT 'ab'} {null} |
| |
| 9 {SELECT NULL UNION ALL SELECT 0} {null 0} |
| 10 {SELECT NULL UNION SELECT 0} {null 0} |
| 11 {SELECT NULL INTERSECT SELECT 0} {} |
| 12 {SELECT NULL EXCEPT SELECT 0} {null} |
| |
| 13 {SELECT c FROM q1 UNION ALL SELECT g FROM q3} {null -42.47 null 2 2} |
| 14 {SELECT c FROM q1 UNION SELECT g FROM q3} {null -42.47 2} |
| 15 {SELECT c FROM q1 INTERSECT SELECT g FROM q3} {} |
| 16 {SELECT c FROM q1 EXCEPT SELECT g FROM q3} {null -42.47} |
| } |
| db nullvalue {} |
| |
| # EVIDENCE-OF: R-51232-50224 The collation sequence used to compare two |
| # text values is determined as if the columns of the left and right-hand |
| # SELECT statements were the left and right-hand operands of the equals |
| # (=) operator, except that greater precedence is not assigned to a |
| # collation sequence specified with the postfix COLLATE operator. |
| # |
| drop_all_tables |
| do_execsql_test e_select-7.10.0 { |
| CREATE TABLE y1(a COLLATE nocase, b COLLATE binary, c); |
| INSERT INTO y1 VALUES('Abc', 'abc', 'aBC'); |
| } {} |
| do_select_tests e_select-7.10 { |
| 1 {SELECT 'abc' UNION SELECT 'ABC'} {ABC abc} |
| 2 {SELECT 'abc' COLLATE nocase UNION SELECT 'ABC'} {ABC} |
| 3 {SELECT 'abc' UNION SELECT 'ABC' COLLATE nocase} {ABC} |
| 4 {SELECT 'abc' COLLATE binary UNION SELECT 'ABC' COLLATE nocase} {ABC abc} |
| 5 {SELECT 'abc' COLLATE nocase UNION SELECT 'ABC' COLLATE binary} {ABC} |
| |
| 6 {SELECT a FROM y1 UNION SELECT b FROM y1} {abc} |
| 7 {SELECT b FROM y1 UNION SELECT a FROM y1} {Abc abc} |
| 8 {SELECT a FROM y1 UNION SELECT c FROM y1} {aBC} |
| |
| 9 {SELECT a FROM y1 UNION SELECT c COLLATE binary FROM y1} {aBC} |
| } |
| |
| # EVIDENCE-OF: R-32706-07403 No affinity transformations are applied to |
| # any values when comparing rows as part of a compound SELECT. |
| # |
| drop_all_tables |
| do_execsql_test e_select-7.10.0 { |
| CREATE TABLE w1(a TEXT, b NUMBER); |
| CREATE TABLE w2(a, b TEXT); |
| |
| INSERT INTO w1 VALUES('1', 4.1); |
| INSERT INTO w2 VALUES(1, 4.1); |
| } {} |
| |
| do_select_tests e_select-7.11 { |
| 1 { SELECT a FROM w1 UNION SELECT a FROM w2 } {1 1} |
| 2 { SELECT a FROM w2 UNION SELECT a FROM w1 } {1 1} |
| 3 { SELECT b FROM w1 UNION SELECT b FROM w2 } {4.1 4.1} |
| 4 { SELECT b FROM w2 UNION SELECT b FROM w1 } {4.1 4.1} |
| |
| 5 { SELECT a FROM w1 INTERSECT SELECT a FROM w2 } {} |
| 6 { SELECT a FROM w2 INTERSECT SELECT a FROM w1 } {} |
| 7 { SELECT b FROM w1 INTERSECT SELECT b FROM w2 } {} |
| 8 { SELECT b FROM w2 INTERSECT SELECT b FROM w1 } {} |
| |
| 9 { SELECT a FROM w1 EXCEPT SELECT a FROM w2 } {1} |
| 10 { SELECT a FROM w2 EXCEPT SELECT a FROM w1 } {1} |
| 11 { SELECT b FROM w1 EXCEPT SELECT b FROM w2 } {4.1} |
| 12 { SELECT b FROM w2 EXCEPT SELECT b FROM w1 } {4.1} |
| } |
| |
| |
| # EVIDENCE-OF: R-32562-20566 When three or more simple SELECTs are |
| # connected into a compound SELECT, they group from left to right. In |
| # other words, if "A", "B" and "C" are all simple SELECT statements, (A |
| # op B op C) is processed as ((A op B) op C). |
| # |
| # e_select-7.12.1: Precedence of UNION vs. INTERSECT |
| # e_select-7.12.2: Precedence of UNION vs. UNION ALL |
| # e_select-7.12.3: Precedence of UNION vs. EXCEPT |
| # e_select-7.12.4: Precedence of INTERSECT vs. UNION ALL |
| # e_select-7.12.5: Precedence of INTERSECT vs. EXCEPT |
| # e_select-7.12.6: Precedence of UNION ALL vs. EXCEPT |
| # e_select-7.12.7: Check that "a EXCEPT b EXCEPT c" is processed as |
| # "(a EXCEPT b) EXCEPT c". |
| # |
| # The INTERSECT and EXCEPT operations are mutually commutative. So |
| # the e_select-7.12.5 test cases do not prove very much. |
| # |
| drop_all_tables |
| do_execsql_test e_select-7.12.0 { |
| CREATE TABLE t1(x); |
| INSERT INTO t1 VALUES(1); |
| INSERT INTO t1 VALUES(2); |
| INSERT INTO t1 VALUES(3); |
| } {} |
| foreach {tn select res} { |
| 1a "(1,2) INTERSECT (1) UNION (3)" {1 3} |
| 1b "(3) UNION (1,2) INTERSECT (1)" {1} |
| |
| 2a "(1,2) UNION (3) UNION ALL (1)" {1 2 3 1} |
| 2b "(1) UNION ALL (3) UNION (1,2)" {1 2 3} |
| |
| 3a "(1,2) UNION (3) EXCEPT (1)" {2 3} |
| 3b "(1,2) EXCEPT (3) UNION (1)" {1 2} |
| |
| 4a "(1,2) INTERSECT (1) UNION ALL (3)" {1 3} |
| 4b "(3) UNION (1,2) INTERSECT (1)" {1} |
| |
| 5a "(1,2) INTERSECT (2) EXCEPT (2)" {} |
| 5b "(2,3) EXCEPT (2) INTERSECT (2)" {} |
| |
| 6a "(2) UNION ALL (2) EXCEPT (2)" {} |
| 6b "(2) EXCEPT (2) UNION ALL (2)" {2} |
| |
| 7 "(2,3) EXCEPT (2) EXCEPT (3)" {} |
| } { |
| set select [string map {( {SELECT x FROM t1 WHERE x IN (}} $select] |
| do_execsql_test e_select-7.12.$tn $select [list {*}$res] |
| } |
| |
| |
| #------------------------------------------------------------------------- |
| # ORDER BY clauses |
| # |
| |
| drop_all_tables |
| do_execsql_test e_select-8.1.0 { |
| CREATE TABLE d1(x, y, z); |
| |
| INSERT INTO d1 VALUES(1, 2, 3); |
| INSERT INTO d1 VALUES(2, 5, -1); |
| INSERT INTO d1 VALUES(1, 2, 8); |
| INSERT INTO d1 VALUES(1, 2, 7); |
| INSERT INTO d1 VALUES(2, 4, 93); |
| INSERT INTO d1 VALUES(1, 2, -20); |
| INSERT INTO d1 VALUES(1, 4, 93); |
| INSERT INTO d1 VALUES(1, 5, -1); |
| |
| CREATE TABLE d2(a, b); |
| INSERT INTO d2 VALUES('gently', 'failings'); |
| INSERT INTO d2 VALUES('commercials', 'bathrobe'); |
| INSERT INTO d2 VALUES('iterate', 'sexton'); |
| INSERT INTO d2 VALUES('babied', 'charitableness'); |
| INSERT INTO d2 VALUES('solemnness', 'annexed'); |
| INSERT INTO d2 VALUES('rejoicing', 'liabilities'); |
| INSERT INTO d2 VALUES('pragmatist', 'guarded'); |
| INSERT INTO d2 VALUES('barked', 'interrupted'); |
| INSERT INTO d2 VALUES('reemphasizes', 'reply'); |
| INSERT INTO d2 VALUES('lad', 'relenting'); |
| } {} |
| |
| # EVIDENCE-OF: R-44988-41064 Rows are first sorted based on the results |
| # of evaluating the left-most expression in the ORDER BY list, then ties |
| # are broken by evaluating the second left-most expression and so on. |
| # |
| do_select_tests e_select-8.1 { |
| 1 "SELECT * FROM d1 ORDER BY x, y, z" { |
| 1 2 -20 1 2 3 1 2 7 1 2 8 |
| 1 4 93 1 5 -1 2 4 93 2 5 -1 |
| } |
| } |
| |
| # EVIDENCE-OF: R-06617-54588 Each ORDER BY expression may be optionally |
| # followed by one of the keywords ASC (smaller values are returned |
| # first) or DESC (larger values are returned first). |
| # |
| # Test cases e_select-8.2.* test the above. |
| # |
| # EVIDENCE-OF: R-18705-33393 If neither ASC or DESC are specified, rows |
| # are sorted in ascending (smaller values first) order by default. |
| # |
| # Test cases e_select-8.3.* test the above. All 8.3 test cases are |
| # copies of 8.2 test cases with the explicit "ASC" removed. |
| # |
| do_select_tests e_select-8 { |
| 2.1 "SELECT * FROM d1 ORDER BY x ASC, y ASC, z ASC" { |
| 1 2 -20 1 2 3 1 2 7 1 2 8 |
| 1 4 93 1 5 -1 2 4 93 2 5 -1 |
| } |
| 2.2 "SELECT * FROM d1 ORDER BY x DESC, y DESC, z DESC" { |
| 2 5 -1 2 4 93 1 5 -1 1 4 93 |
| 1 2 8 1 2 7 1 2 3 1 2 -20 |
| } |
| 2.3 "SELECT * FROM d1 ORDER BY x DESC, y ASC, z DESC" { |
| 2 4 93 2 5 -1 1 2 8 1 2 7 |
| 1 2 3 1 2 -20 1 4 93 1 5 -1 |
| } |
| 2.4 "SELECT * FROM d1 ORDER BY x DESC, y ASC, z ASC" { |
| 2 4 93 2 5 -1 1 2 -20 1 2 3 |
| 1 2 7 1 2 8 1 4 93 1 5 -1 |
| } |
| |
| 3.1 "SELECT * FROM d1 ORDER BY x, y, z" { |
| 1 2 -20 1 2 3 1 2 7 1 2 8 |
| 1 4 93 1 5 -1 2 4 93 2 5 -1 |
| } |
| 3.3 "SELECT * FROM d1 ORDER BY x DESC, y, z DESC" { |
| 2 4 93 2 5 -1 1 2 8 1 2 7 |
| 1 2 3 1 2 -20 1 4 93 1 5 -1 |
| } |
| 3.4 "SELECT * FROM d1 ORDER BY x DESC, y, z" { |
| 2 4 93 2 5 -1 1 2 -20 1 2 3 |
| 1 2 7 1 2 8 1 4 93 1 5 -1 |
| } |
| } |
| |
| # EVIDENCE-OF: R-29779-04281 If the ORDER BY expression is a constant |
| # integer K then the expression is considered an alias for the K-th |
| # column of the result set (columns are numbered from left to right |
| # starting with 1). |
| # |
| do_select_tests e_select-8.4 { |
| 1 "SELECT * FROM d1 ORDER BY 1 ASC, 2 ASC, 3 ASC" { |
| 1 2 -20 1 2 3 1 2 7 1 2 8 |
| 1 4 93 1 5 -1 2 4 93 2 5 -1 |
| } |
| 2 "SELECT * FROM d1 ORDER BY 1 DESC, 2 DESC, 3 DESC" { |
| 2 5 -1 2 4 93 1 5 -1 1 4 93 |
| 1 2 8 1 2 7 1 2 3 1 2 -20 |
| } |
| 3 "SELECT * FROM d1 ORDER BY 1 DESC, 2 ASC, 3 DESC" { |
| 2 4 93 2 5 -1 1 2 8 1 2 7 |
| 1 2 3 1 2 -20 1 4 93 1 5 -1 |
| } |
| 4 "SELECT * FROM d1 ORDER BY 1 DESC, 2 ASC, 3 ASC" { |
| 2 4 93 2 5 -1 1 2 -20 1 2 3 |
| 1 2 7 1 2 8 1 4 93 1 5 -1 |
| } |
| 5 "SELECT * FROM d1 ORDER BY 1, 2, 3" { |
| 1 2 -20 1 2 3 1 2 7 1 2 8 |
| 1 4 93 1 5 -1 2 4 93 2 5 -1 |
| } |
| 6 "SELECT * FROM d1 ORDER BY 1 DESC, 2, 3 DESC" { |
| 2 4 93 2 5 -1 1 2 8 1 2 7 |
| 1 2 3 1 2 -20 1 4 93 1 5 -1 |
| } |
| 7 "SELECT * FROM d1 ORDER BY 1 DESC, 2, 3" { |
| 2 4 93 2 5 -1 1 2 -20 1 2 3 |
| 1 2 7 1 2 8 1 4 93 1 5 -1 |
| } |
| 8 "SELECT z, x FROM d1 ORDER BY 2" { |
| 3 1 8 1 7 1 -20 1 |
| 93 1 -1 1 -1 2 93 2 |
| } |
| 9 "SELECT z, x FROM d1 ORDER BY 1" { |
| -20 1 -1 2 -1 1 3 1 |
| 7 1 8 1 93 2 93 1 |
| } |
| } |
| |
| # EVIDENCE-OF: R-63286-51977 If the ORDER BY expression is an identifier |
| # that corresponds to the alias of one of the output columns, then the |
| # expression is considered an alias for that column. |
| # |
| do_select_tests e_select-8.5 { |
| 1 "SELECT z+1 AS abc FROM d1 ORDER BY abc" { |
| -19 0 0 4 8 9 94 94 |
| } |
| 2 "SELECT z+1 AS abc FROM d1 ORDER BY abc DESC" { |
| 94 94 9 8 4 0 0 -19 |
| } |
| 3 "SELECT z AS x, x AS z FROM d1 ORDER BY z" { |
| 3 1 8 1 7 1 -20 1 93 1 -1 1 -1 2 93 2 |
| } |
| 4 "SELECT z AS x, x AS z FROM d1 ORDER BY x" { |
| -20 1 -1 2 -1 1 3 1 7 1 8 1 93 2 93 1 |
| } |
| } |
| |
| # EVIDENCE-OF: R-27923-38747 Otherwise, if the ORDER BY expression is |
| # any other expression, it is evaluated and the the returned value used |
| # to order the output rows. |
| # |
| # EVIDENCE-OF: R-03421-57988 If the SELECT statement is a simple SELECT, |
| # then an ORDER BY may contain any arbitrary expressions. |
| # |
| do_select_tests e_select-8.6 { |
| 1 "SELECT * FROM d1 ORDER BY x+y+z" { |
| 1 2 -20 1 5 -1 1 2 3 2 5 -1 |
| 1 2 7 1 2 8 1 4 93 2 4 93 |
| } |
| 2 "SELECT * FROM d1 ORDER BY x*z" { |
| 1 2 -20 2 5 -1 1 5 -1 1 2 3 |
| 1 2 7 1 2 8 1 4 93 2 4 93 |
| } |
| 3 "SELECT * FROM d1 ORDER BY y*z" { |
| 1 2 -20 2 5 -1 1 5 -1 1 2 3 |
| 1 2 7 1 2 8 2 4 93 1 4 93 |
| } |
| } |
| |
| # EVIDENCE-OF: R-28853-08147 However, if the SELECT is a compound |
| # SELECT, then ORDER BY expressions that are not aliases to output |
| # columns must be exactly the same as an expression used as an output |
| # column. |
| # |
| do_select_tests e_select-8.7.1 -error { |
| %s ORDER BY term does not match any column in the result set |
| } { |
| 1 "SELECT x FROM d1 UNION ALL SELECT a FROM d2 ORDER BY x*z" 1st |
| 2 "SELECT x,z FROM d1 UNION ALL SELECT a,b FROM d2 ORDER BY x, x/z" 2nd |
| } |
| |
| do_select_tests e_select-8.7.2 { |
| 1 "SELECT x*z FROM d1 UNION ALL SELECT a FROM d2 ORDER BY x*z" { |
| -20 -2 -1 3 7 8 93 186 babied barked commercials gently |
| iterate lad pragmatist reemphasizes rejoicing solemnness |
| } |
| 2 "SELECT x, x/z FROM d1 UNION ALL SELECT a,b FROM d2 ORDER BY x, x/z" { |
| 1 -1 1 0 1 0 1 0 1 0 1 0 2 -2 2 0 |
| babied charitableness barked interrupted commercials bathrobe gently |
| failings iterate sexton lad relenting pragmatist guarded reemphasizes reply |
| rejoicing liabilities solemnness annexed |
| } |
| } |
| |
| do_execsql_test e_select-8.8.0 { |
| CREATE TABLE d3(a); |
| INSERT INTO d3 VALUES('text'); |
| INSERT INTO d3 VALUES(14.1); |
| INSERT INTO d3 VALUES(13); |
| INSERT INTO d3 VALUES(X'78787878'); |
| INSERT INTO d3 VALUES(15); |
| INSERT INTO d3 VALUES(12.9); |
| INSERT INTO d3 VALUES(null); |
| |
| CREATE TABLE d4(x COLLATE nocase); |
| INSERT INTO d4 VALUES('abc'); |
| INSERT INTO d4 VALUES('ghi'); |
| INSERT INTO d4 VALUES('DEF'); |
| INSERT INTO d4 VALUES('JKL'); |
| } {} |
| |
| # EVIDENCE-OF: R-10883-17697 For the purposes of sorting rows, values |
| # are compared in the same way as for comparison expressions. |
| # |
| # The following tests verify that values of different types are sorted |
| # correctly, and that mixed real and integer values are compared properly. |
| # |
| do_execsql_test e_select-8.8.1 { |
| SELECT a FROM d3 ORDER BY a |
| } {{} 12.9 13 14.1 15 text xxxx} |
| do_execsql_test e_select-8.8.2 { |
| SELECT a FROM d3 ORDER BY a DESC |
| } {xxxx text 15 14.1 13 12.9 {}} |
| |
| |
| # EVIDENCE-OF: R-64199-22471 If the ORDER BY expression is assigned a |
| # collation sequence using the postfix COLLATE operator, then the |
| # specified collation sequence is used. |
| # |
| do_execsql_test e_select-8.9.1 { |
| SELECT x FROM d4 ORDER BY 1 COLLATE binary |
| } {DEF JKL abc ghi} |
| do_execsql_test e_select-8.9.2 { |
| SELECT x COLLATE binary FROM d4 ORDER BY 1 COLLATE nocase |
| } {abc DEF ghi JKL} |
| |
| # EVIDENCE-OF: R-09398-26102 Otherwise, if the ORDER BY expression is |
| # an alias to an expression that has been assigned a collation sequence |
| # using the postfix COLLATE operator, then the collation sequence |
| # assigned to the aliased expression is used. |
| # |
| # In the test 8.10.2, the only result-column expression has no alias. So the |
| # ORDER BY expression is not a reference to it and therefore does not inherit |
| # the collation sequence. In test 8.10.3, "x" is the alias (as well as the |
| # column name), so the ORDER BY expression is interpreted as an alias and the |
| # collation sequence attached to the result column is used for sorting. |
| # |
| do_execsql_test e_select-8.10.1 { |
| SELECT x COLLATE binary FROM d4 ORDER BY 1 |
| } {DEF JKL abc ghi} |
| do_execsql_test e_select-8.10.2 { |
| SELECT x COLLATE binary FROM d4 ORDER BY x |
| } {abc DEF ghi JKL} |
| do_execsql_test e_select-8.10.3 { |
| SELECT x COLLATE binary AS x FROM d4 ORDER BY x |
| } {DEF JKL abc ghi} |
| |
| # EVIDENCE-OF: R-27301-09658 Otherwise, if the ORDER BY expression is a |
| # column or an alias of an expression that is a column, then the default |
| # collation sequence for the column is used. |
| # |
| do_execsql_test e_select-8.11.1 { |
| SELECT x AS y FROM d4 ORDER BY y |
| } {abc DEF ghi JKL} |
| do_execsql_test e_select-8.11.2 { |
| SELECT x||'' FROM d4 ORDER BY x |
| } {abc DEF ghi JKL} |
| |
| # EVIDENCE-OF: R-49925-55905 Otherwise, the BINARY collation sequence is |
| # used. |
| # |
| do_execsql_test e_select-8.12.1 { |
| SELECT x FROM d4 ORDER BY x||'' |
| } {DEF JKL abc ghi} |
| |
| # EVIDENCE-OF: R-44130-32593 If an ORDER BY expression is not an integer |
| # alias, then SQLite searches the left-most SELECT in the compound for a |
| # result column that matches either the second or third rules above. If |
| # a match is found, the search stops and the expression is handled as an |
| # alias for the result column that it has been matched against. |
| # Otherwise, the next SELECT to the right is tried, and so on. |
| # |
| do_execsql_test e_select-8.13.0 { |
| CREATE TABLE d5(a, b); |
| CREATE TABLE d6(c, d); |
| CREATE TABLE d7(e, f); |
| |
| INSERT INTO d5 VALUES(1, 'f'); |
| INSERT INTO d6 VALUES(2, 'e'); |
| INSERT INTO d7 VALUES(3, 'd'); |
| INSERT INTO d5 VALUES(4, 'c'); |
| INSERT INTO d6 VALUES(5, 'b'); |
| INSERT INTO d7 VALUES(6, 'a'); |
| |
| CREATE TABLE d8(x COLLATE nocase); |
| CREATE TABLE d9(y COLLATE nocase); |
| |
| INSERT INTO d8 VALUES('a'); |
| INSERT INTO d9 VALUES('B'); |
| INSERT INTO d8 VALUES('c'); |
| INSERT INTO d9 VALUES('D'); |
| } {} |
| do_select_tests e_select-8.13 { |
| 1 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7 |
| ORDER BY a |
| } {1 2 3 4 5 6} |
| 2 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7 |
| ORDER BY c |
| } {1 2 3 4 5 6} |
| 3 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7 |
| ORDER BY e |
| } {1 2 3 4 5 6} |
| 4 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7 |
| ORDER BY 1 |
| } {1 2 3 4 5 6} |
| |
| 5 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY b } |
| {f 1 c 4 4 c 1 f} |
| 6 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY 2 } |
| {f 1 c 4 4 c 1 f} |
| |
| 7 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY a } |
| {1 f 4 c c 4 f 1} |
| 8 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY 1 } |
| {1 f 4 c c 4 f 1} |
| |
| 9 { SELECT a, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY a+1 } |
| {f 2 c 5 4 c 1 f} |
| 10 { SELECT a, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY 2 } |
| {f 2 c 5 4 c 1 f} |
| |
| 11 { SELECT a+1, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY a+1 } |
| {2 f 5 c c 5 f 2} |
| 12 { SELECT a+1, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY 1 } |
| {2 f 5 c c 5 f 2} |
| } |
| |
| # EVIDENCE-OF: R-39265-04070 If no matching expression can be found in |
| # the result columns of any constituent SELECT, it is an error. |
| # |
| do_select_tests e_select-8.14 -error { |
| %s ORDER BY term does not match any column in the result set |
| } { |
| 1 { SELECT a FROM d5 UNION SELECT c FROM d6 ORDER BY a+1 } 1st |
| 2 { SELECT a FROM d5 UNION SELECT c FROM d6 ORDER BY a, a+1 } 2nd |
| 3 { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY 'hello' } 1st |
| 4 { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY blah } 1st |
| 5 { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY c,d,c+d } 3rd |
| 6 { SELECT * FROM d5 EXCEPT SELECT * FROM d7 ORDER BY 1,2,b,a/b } 4th |
| } |
| |
| # EVIDENCE-OF: R-03407-11483 Each term of the ORDER BY clause is |
| # processed separately and may be matched against result columns from |
| # different SELECT statements in the compound. |
| # |
| do_select_tests e_select-8.15 { |
| 1 { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY a, d } |
| {1 e 1 f 4 b 4 c} |
| 2 { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY c-1, b } |
| {1 e 1 f 4 b 4 c} |
| 3 { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY 1, 2 } |
| {1 e 1 f 4 b 4 c} |
| } |
| |
| |
| #------------------------------------------------------------------------- |
| # Tests related to statements made about the LIMIT/OFFSET clause. |
| # |
| do_execsql_test e_select-9.0 { |
| CREATE TABLE f1(a, b); |
| INSERT INTO f1 VALUES(26, 'z'); |
| INSERT INTO f1 VALUES(25, 'y'); |
| INSERT INTO f1 VALUES(24, 'x'); |
| INSERT INTO f1 VALUES(23, 'w'); |
| INSERT INTO f1 VALUES(22, 'v'); |
| INSERT INTO f1 VALUES(21, 'u'); |
| INSERT INTO f1 VALUES(20, 't'); |
| INSERT INTO f1 VALUES(19, 's'); |
| INSERT INTO f1 VALUES(18, 'r'); |
| INSERT INTO f1 VALUES(17, 'q'); |
| INSERT INTO f1 VALUES(16, 'p'); |
| INSERT INTO f1 VALUES(15, 'o'); |
| INSERT INTO f1 VALUES(14, 'n'); |
| INSERT INTO f1 VALUES(13, 'm'); |
| INSERT INTO f1 VALUES(12, 'l'); |
| INSERT INTO f1 VALUES(11, 'k'); |
| INSERT INTO f1 VALUES(10, 'j'); |
| INSERT INTO f1 VALUES(9, 'i'); |
| INSERT INTO f1 VALUES(8, 'h'); |
| INSERT INTO f1 VALUES(7, 'g'); |
| INSERT INTO f1 VALUES(6, 'f'); |
| INSERT INTO f1 VALUES(5, 'e'); |
| INSERT INTO f1 VALUES(4, 'd'); |
| INSERT INTO f1 VALUES(3, 'c'); |
| INSERT INTO f1 VALUES(2, 'b'); |
| INSERT INTO f1 VALUES(1, 'a'); |
| } {} |
| |
| # EVIDENCE-OF: R-30481-56627 Any scalar expression may be used in the |
| # LIMIT clause, so long as it evaluates to an integer or a value that |
| # can be losslessly converted to an integer. |
| # |
| do_select_tests e_select-9.1 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 5 } {a b c d e} |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT 2+3 } {a b c d e} |
| 3 { SELECT b FROM f1 ORDER BY a LIMIT (SELECT a FROM f1 WHERE b = 'e') } |
| {a b c d e} |
| 4 { SELECT b FROM f1 ORDER BY a LIMIT 5.0 } {a b c d e} |
| 5 { SELECT b FROM f1 ORDER BY a LIMIT '5' } {a b c d e} |
| } |
| |
| # EVIDENCE-OF: R-46155-47219 If the expression evaluates to a NULL value |
| # or any other value that cannot be losslessly converted to an integer, |
| # an error is returned. |
| # |
| |
| do_select_tests e_select-9.2 -error "datatype mismatch" { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 'hello' } {} |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT NULL } {} |
| 3 { SELECT b FROM f1 ORDER BY a LIMIT X'ABCD' } {} |
| 4 { SELECT b FROM f1 ORDER BY a LIMIT 5.1 } {} |
| 5 { SELECT b FROM f1 ORDER BY a LIMIT (SELECT group_concat(b) FROM f1) } {} |
| } |
| |
| # EVIDENCE-OF: R-03014-26414 If the LIMIT expression evaluates to a |
| # negative value, then there is no upper bound on the number of rows |
| # returned. |
| # |
| do_select_tests e_select-9.4 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT -1 } |
| {a b c d e f g h i j k l m n o p q r s t u v w x y z} |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT length('abc')-100 } |
| {a b c d e f g h i j k l m n o p q r s t u v w x y z} |
| 3 { SELECT b FROM f1 ORDER BY a LIMIT (SELECT count(*) FROM f1)/2 - 14 } |
| {a b c d e f g h i j k l m n o p q r s t u v w x y z} |
| } |
| |
| # EVIDENCE-OF: R-33750-29536 Otherwise, the SELECT returns the first N |
| # rows of its result set only, where N is the value that the LIMIT |
| # expression evaluates to. |
| # |
| do_select_tests e_select-9.5 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 0 } {} |
| 2 { SELECT b FROM f1 ORDER BY a DESC LIMIT 4 } {z y x w} |
| 3 { SELECT b FROM f1 ORDER BY a DESC LIMIT 8 } {z y x w v u t s} |
| 4 { SELECT b FROM f1 ORDER BY a DESC LIMIT '12.0' } {z y x w v u t s r q p o} |
| } |
| |
| # EVIDENCE-OF: R-54935-19057 Or, if the SELECT statement would return |
| # less than N rows without a LIMIT clause, then the entire result set is |
| # returned. |
| # |
| do_select_tests e_select-9.6 { |
| 1 { SELECT b FROM f1 WHERE a>21 ORDER BY a LIMIT 10 } {v w x y z} |
| 2 { SELECT count(*) FROM f1 GROUP BY a/5 ORDER BY 1 LIMIT 10 } {2 4 5 5 5 5} |
| } |
| |
| |
| # EVIDENCE-OF: R-24188-24349 The expression attached to the optional |
| # OFFSET clause that may follow a LIMIT clause must also evaluate to an |
| # integer, or a value that can be losslessly converted to an integer. |
| # |
| foreach {tn select} { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET 'hello' } |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET NULL } |
| 3 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET X'ABCD' } |
| 4 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET 5.1 } |
| 5 { SELECT b FROM f1 ORDER BY a |
| LIMIT 2 OFFSET (SELECT group_concat(b) FROM f1) |
| } |
| } { |
| do_catchsql_test e_select-9.7.$tn $select {1 {datatype mismatch}} |
| } |
| |
| # EVIDENCE-OF: R-20467-43422 If an expression has an OFFSET clause, then |
| # the first M rows are omitted from the result set returned by the |
| # SELECT statement and the next N rows are returned, where M and N are |
| # the values that the OFFSET and LIMIT clauses evaluate to, |
| # respectively. |
| # |
| do_select_tests e_select-9.8 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 10 OFFSET 5} {f g h i j k l m n o} |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT 2+3 OFFSET 10} {k l m n o} |
| 3 { SELECT b FROM f1 ORDER BY a |
| LIMIT (SELECT a FROM f1 WHERE b='j') |
| OFFSET (SELECT a FROM f1 WHERE b='b') |
| } {c d e f g h i j k l} |
| 4 { SELECT b FROM f1 ORDER BY a LIMIT '5' OFFSET 3.0 } {d e f g h} |
| 5 { SELECT b FROM f1 ORDER BY a LIMIT '5' OFFSET 0 } {a b c d e} |
| 6 { SELECT b FROM f1 ORDER BY a LIMIT 0 OFFSET 10 } {} |
| 7 { SELECT b FROM f1 ORDER BY a LIMIT 3 OFFSET '1'||'5' } {p q r} |
| } |
| |
| # EVIDENCE-OF: R-34648-44875 Or, if the SELECT would return less than |
| # M+N rows if it did not have a LIMIT clause, then the first M rows are |
| # skipped and the remaining rows (if any) are returned. |
| # |
| do_select_tests e_select-9.9 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 10 OFFSET 20} {u v w x y z} |
| 2 { SELECT a FROM f1 ORDER BY a DESC LIMIT 100 OFFSET 18+4} {4 3 2 1} |
| } |
| |
| |
| # EVIDENCE-OF: R-23293-62447 If the OFFSET clause evaluates to a |
| # negative value, the results are the same as if it had evaluated to |
| # zero. |
| # |
| do_select_tests e_select-9.10 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET -1 } {a b c d e} |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET -500 } {a b c d e} |
| 3 { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET 0 } {a b c d e} |
| } |
| |
| # EVIDENCE-OF: R-19509-40356 Instead of a separate OFFSET clause, the |
| # LIMIT clause may specify two scalar expressions separated by a comma. |
| # |
| # EVIDENCE-OF: R-33788-46243 In this case, the first expression is used |
| # as the OFFSET expression and the second as the LIMIT expression. |
| # |
| do_select_tests e_select-9.11 { |
| 1 { SELECT b FROM f1 ORDER BY a LIMIT 5, 10 } {f g h i j k l m n o} |
| 2 { SELECT b FROM f1 ORDER BY a LIMIT 10, 2+3 } {k l m n o} |
| 3 { SELECT b FROM f1 ORDER BY a |
| LIMIT (SELECT a FROM f1 WHERE b='b'), (SELECT a FROM f1 WHERE b='j') |
| } {c d e f g h i j k l} |
| 4 { SELECT b FROM f1 ORDER BY a LIMIT 3.0, '5' } {d e f g h} |
| 5 { SELECT b FROM f1 ORDER BY a LIMIT 0, '5' } {a b c d e} |
| 6 { SELECT b FROM f1 ORDER BY a LIMIT 10, 0 } {} |
| 7 { SELECT b FROM f1 ORDER BY a LIMIT '1'||'5', 3 } {p q r} |
| |
| 8 { SELECT b FROM f1 ORDER BY a LIMIT 20, 10 } {u v w x y z} |
| 9 { SELECT a FROM f1 ORDER BY a DESC LIMIT 18+4, 100 } {4 3 2 1} |
| |
| 10 { SELECT b FROM f1 ORDER BY a LIMIT -1, 5 } {a b c d e} |
| 11 { SELECT b FROM f1 ORDER BY a LIMIT -500, 5 } {a b c d e} |
| 12 { SELECT b FROM f1 ORDER BY a LIMIT 0, 5 } {a b c d e} |
| } |
| |
| finish_test |
