# 2008 September 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 regression tests for SQLite library. 
#
# $Id: selectC.test,v 1.5 2009/05/17 15:26:21 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Ticket #
do_test selectC-1.1 {
  execsql {
    CREATE TABLE t1(a, b, c);
    INSERT INTO t1 VALUES(1,'aaa','bbb');
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 VALUES(2,'ccc','ddd');

    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE y IN ('aaabbb','xxx');
  }
} {1 aaabbb}
do_test selectC-1.2 {
  execsql {
    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE b||c IN ('aaabbb','xxx');
  }
} {1 aaabbb}
do_test selectC-1.3 {
  execsql {
    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE y='aaabbb'
  }
} {1 aaabbb}
do_test selectC-1.4 {
  execsql {
    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE b||c='aaabbb'
  }
} {1 aaabbb}
do_test selectC-1.5 {
  execsql {
    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE x=2
  }
} {2 cccddd}
do_test selectC-1.6 {
  execsql {
    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE a=2
  }
} {2 cccddd}
do_test selectC-1.7 {
  execsql {
    SELECT DISTINCT a AS x, b||c AS y
      FROM t1
     WHERE +y='aaabbb'
  }
} {1 aaabbb}
do_test selectC-1.8 {
  execsql {
    SELECT a AS x, b||c AS y
      FROM t1
     GROUP BY x, y
    HAVING y='aaabbb'
  }
} {1 aaabbb}
do_test selectC-1.9 {
  execsql {
    SELECT a AS x, b||c AS y
      FROM t1
     GROUP BY x, y
    HAVING b||c='aaabbb'
  }
} {1 aaabbb}
do_test selectC-1.10 {
  execsql {
    SELECT a AS x, b||c AS y
      FROM t1
     WHERE y='aaabbb'
     GROUP BY x, y
  }
} {1 aaabbb}
do_test selectC-1.11 {
  execsql {
    SELECT a AS x, b||c AS y
      FROM t1
     WHERE b||c='aaabbb'
     GROUP BY x, y
  }
} {1 aaabbb}
proc longname_toupper x {return [string toupper $x]}
db function uppercaseconversionfunctionwithaverylongname longname_toupper
do_test selectC-1.12.1 {
  execsql {
    SELECT DISTINCT upper(b) AS x
      FROM t1
     ORDER BY x
  }
} {AAA CCC}
do_test selectC-1.12.2 {
  execsql {
    SELECT DISTINCT uppercaseconversionfunctionwithaverylongname(b) AS x
      FROM t1
     ORDER BY x
  }
} {AAA CCC}
do_test selectC-1.13.1 {
  execsql {
    SELECT upper(b) AS x
      FROM t1
     GROUP BY x
     ORDER BY x
  }
} {AAA CCC}
do_test selectC-1.13.2 {
  execsql {
    SELECT uppercaseconversionfunctionwithaverylongname(b) AS x
      FROM t1
     GROUP BY x
     ORDER BY x
  }
} {AAA CCC}
do_test selectC-1.14.1 {
  execsql {
    SELECT upper(b) AS x
      FROM t1
     ORDER BY x DESC
  }
} {CCC AAA AAA}
do_test selectC-1.14.2 {
  execsql {
    SELECT uppercaseconversionfunctionwithaverylongname(b) AS x
      FROM t1
     ORDER BY x DESC
  }
} {CCC AAA AAA}

# The following query used to leak memory.  Verify that has been fixed.
#
ifcapable trigger {
  do_test selectC-2.1 {
    catchsql {
      CREATE TABLE t21a(a,b);
      INSERT INTO t21a VALUES(1,2);
      CREATE TABLE t21b(n);
      CREATE TRIGGER r21 AFTER INSERT ON t21b BEGIN
        SELECT a FROM t21a WHERE a>new.x UNION ALL
        SELECT b FROM t21a WHERE b>new.x ORDER BY 1 LIMIT 2;
      END;
      INSERT INTO t21b VALUES(6);
    }
  } {1 {no such column: new.x}}
}

# Check that ticket [883034dcb5] is fixed.
#
do_test selectC-3.1 {
  execsql {
    CREATE TABLE person (
        org_id          TEXT NOT NULL,
        nickname        TEXT NOT NULL,
        license         TEXT,
        CONSTRAINT person_pk PRIMARY KEY (org_id, nickname),
        CONSTRAINT person_license_uk UNIQUE (license)
    );
    INSERT INTO person VALUES('meyers', 'jack', '2GAT123');
    INSERT INTO person VALUES('meyers', 'hill', 'V345FMP');
    INSERT INTO person VALUES('meyers', 'jim', '2GAT138');
    INSERT INTO person VALUES('smith', 'maggy', '');
    INSERT INTO person VALUES('smith', 'jose', 'JJZ109');
    INSERT INTO person VALUES('smith', 'jack', 'THX138');
    INSERT INTO person VALUES('lakeside', 'dave', '953OKG');
    INSERT INTO person VALUES('lakeside', 'amy', NULL);
    INSERT INTO person VALUES('lake-apts', 'tom', NULL);
    INSERT INTO person VALUES('acorn', 'hideo', 'CQB421');
    
    SELECT 
      org_id, 
      count((NOT (org_id IS NULL)) AND (NOT (nickname IS NULL)))
    FROM person 
    WHERE (CASE WHEN license != '' THEN 1 ELSE 0 END)
    GROUP BY 1;
  }
} {acorn 1 lakeside 1 meyers 3 smith 2}
do_test selectC-3.2 {
  execsql {
    CREATE TABLE t2(a PRIMARY KEY, b);
    INSERT INTO t2 VALUES('abc', 'xxx');
    INSERT INTO t2 VALUES('def', 'yyy');
    SELECT a, max(b || a) FROM t2 WHERE (b||b||b)!='value' GROUP BY a;
  }
} {abc xxxabc def yyydef}
do_test selectC-3.3 {
  execsql {
    SELECT b, max(a || b) FROM t2 WHERE (b||b||b)!='value' GROUP BY a;
  }
} {xxx abcxxx yyy defyyy}


proc udf {} { incr ::udf }
set ::udf 0
db function udf udf

do_execsql_test selectC-4.1 {
  create table t_distinct_bug (a, b, c);
  insert into t_distinct_bug values ('1', '1', 'a');
  insert into t_distinct_bug values ('1', '2', 'b');
  insert into t_distinct_bug values ('1', '3', 'c');
  insert into t_distinct_bug values ('1', '1', 'd');
  insert into t_distinct_bug values ('1', '2', 'e');
  insert into t_distinct_bug values ('1', '3', 'f');
} {}

do_execsql_test selectC-4.2 {
  select a from (select distinct a, b from t_distinct_bug)
} {1 1 1}

do_execsql_test selectC-4.3 {
  select a, udf() from (select distinct a, b from t_distinct_bug)
} {1 1 1 2 1 3}

finish_test