| Index: third_party/sqlite/sqlite-src-3070603/test/subquery.test
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| diff --git a/third_party/sqlite/sqlite-src-3070603/test/subquery.test b/third_party/sqlite/sqlite-src-3070603/test/subquery.test
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..169cedace6e435d750b73b1a113e4959032ef5b0
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| --- /dev/null
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| +++ b/third_party/sqlite/sqlite-src-3070603/test/subquery.test
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| @@ -0,0 +1,499 @@
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| +# 2005 January 19
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| +#
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| +# The author disclaims copyright to this source code.  In place of
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| +# a legal notice, here is a blessing:
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| +#
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| +#    May you do good and not evil.
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| +#    May you find forgiveness for yourself and forgive others.
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| +#    May you share freely, never taking more than you give.
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| +#
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| +#*************************************************************************
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| +# This file implements regression tests for SQLite library.  The
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| +# focus of this script is testing correlated subqueries
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| +#
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| +# $Id: subquery.test,v 1.17 2009/01/09 01:12:28 drh Exp $
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| +#
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| +
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| +set testdir [file dirname $argv0]
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| +source $testdir/tester.tcl
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| +
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| +ifcapable !subquery {
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| +  finish_test
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| +  return
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| +}
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| +
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| +do_test subquery-1.1 {
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| +  execsql {
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| +    BEGIN;
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| +    CREATE TABLE t1(a,b);
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| +    INSERT INTO t1 VALUES(1,2);
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| +    INSERT INTO t1 VALUES(3,4);
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| +    INSERT INTO t1 VALUES(5,6);
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| +    INSERT INTO t1 VALUES(7,8);
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| +    CREATE TABLE t2(x,y);
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| +    INSERT INTO t2 VALUES(1,1);
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| +    INSERT INTO t2 VALUES(3,9);
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| +    INSERT INTO t2 VALUES(5,25);
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| +    INSERT INTO t2 VALUES(7,49);
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| +    COMMIT;
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| +  }
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| +  execsql {
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| +    SELECT a, (SELECT y FROM t2 WHERE x=a) FROM t1 WHERE b<8
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| +  }
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| +} {1 1 3 9 5 25}
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| +do_test subquery-1.2 {
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| +  execsql {
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| +    UPDATE t1 SET b=b+(SELECT y FROM t2 WHERE x=a);
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| +    SELECT * FROM t1;
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| +  }
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| +} {1 3 3 13 5 31 7 57}
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| +
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| +do_test subquery-1.3 {
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| +  execsql {
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| +    SELECT b FROM t1 WHERE EXISTS(SELECT * FROM t2 WHERE y=a)
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| +  }
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| +} {3}
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| +do_test subquery-1.4 {
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| +  execsql {
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| +    SELECT b FROM t1 WHERE NOT EXISTS(SELECT * FROM t2 WHERE y=a)
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| +  }
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| +} {13 31 57}
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| +
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| +# Simple tests to make sure correlated subqueries in WHERE clauses
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| +# are used by the query optimizer correctly.
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| +do_test subquery-1.5 {
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| +  execsql {
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| +    SELECT a, x FROM t1, t2 WHERE t1.a = (SELECT x);
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| +  }
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| +} {1 1 3 3 5 5 7 7}
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| +do_test subquery-1.6 {
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| +  execsql {
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| +    CREATE INDEX i1 ON t1(a);
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| +    SELECT a, x FROM t1, t2 WHERE t1.a = (SELECT x);
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| +  }
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| +} {1 1 3 3 5 5 7 7}
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| +do_test subquery-1.7 {
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| +  execsql {
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| +    SELECT a, x FROM t2, t1 WHERE t1.a = (SELECT x);
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| +  }
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| +} {1 1 3 3 5 5 7 7}
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| +
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| +# Try an aggregate in both the subquery and the parent query.
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| +do_test subquery-1.8 {
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| +  execsql {
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| +    SELECT count(*) FROM t1 WHERE a > (SELECT count(*) FROM t2);
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| +  }
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| +} {2}
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| +
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| +# Test a correlated subquery disables the "only open the index" optimization.
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| +do_test subquery-1.9.1 {
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| +  execsql {
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| +    SELECT (y*2)>b FROM t1, t2 WHERE a=x;
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| +  }
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| +} {0 1 1 1}
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| +do_test subquery-1.9.2 {
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| +  execsql {
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| +    SELECT a FROM t1 WHERE (SELECT (y*2)>b FROM t2 WHERE a=x); 
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| +  }
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| +} {3 5 7}
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| +
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| +# Test that the flattening optimization works with subquery expressions.
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| +do_test subquery-1.10.1 {
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| +  execsql {
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| +    SELECT (SELECT a), b FROM t1;
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| +  }
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| +} {1 3 3 13 5 31 7 57}
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| +do_test subquery-1.10.2 {
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| +  execsql {
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| +    SELECT * FROM (SELECT (SELECT a), b FROM t1);
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| +  }
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| +} {1 3 3 13 5 31 7 57}
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| +do_test subquery-1.10.3 {
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| +  execsql {
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| +    SELECT * FROM (SELECT (SELECT sum(a) FROM t1));
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| +  }
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| +} {16}
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| +do_test subquery-1.10.4 {
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| +  execsql {
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| +    CREATE TABLE t5 (val int, period text PRIMARY KEY);
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| +    INSERT INTO t5 VALUES(5, '2001-3');
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| +    INSERT INTO t5 VALUES(10, '2001-4');
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| +    INSERT INTO t5 VALUES(15, '2002-1');
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| +    INSERT INTO t5 VALUES(5, '2002-2');
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| +    INSERT INTO t5 VALUES(10, '2002-3');
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| +    INSERT INTO t5 VALUES(15, '2002-4');
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| +    INSERT INTO t5 VALUES(10, '2003-1');
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| +    INSERT INTO t5 VALUES(5, '2003-2');
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| +    INSERT INTO t5 VALUES(25, '2003-3');
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| +    INSERT INTO t5 VALUES(5, '2003-4');
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| +
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| +    SELECT period, vsum
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| +    FROM (SELECT 
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| +      a.period,
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| +      (select sum(val) from t5 where period between a.period and '2002-4') vsum
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| +      FROM t5 a where a.period between '2002-1' and '2002-4')
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| +    WHERE vsum < 45 ;
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| +  }
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| +} {2002-2 30 2002-3 25 2002-4 15}
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| +do_test subquery-1.10.5 {
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| +  execsql {
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| +    SELECT period, vsum from
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| +      (select a.period,
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| +      (select sum(val) from t5 where period between a.period and '2002-4') vsum
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| +    FROM t5 a where a.period between '2002-1' and '2002-4') 
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| +    WHERE vsum < 45 ;
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| +  }
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| +} {2002-2 30 2002-3 25 2002-4 15}
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| +do_test subquery-1.10.6 {
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| +  execsql {
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| +    DROP TABLE t5;
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| +  }
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| +} {}
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| +
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| +
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| +
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| +#------------------------------------------------------------------
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| +# The following test cases - subquery-2.* - are not logically
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| +# organized. They're here largely because they were failing during
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| +# one stage of development of sub-queries.
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| +#
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| +do_test subquery-2.1 {
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| +  execsql {
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| +    SELECT (SELECT 10);
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| +  }
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| +} {10}
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| +do_test subquery-2.2.1 {
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| +  execsql {
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| +    CREATE TABLE t3(a PRIMARY KEY, b);
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| +    INSERT INTO t3 VALUES(1, 2);
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| +    INSERT INTO t3 VALUES(3, 1);
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| +  }
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| +} {}
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| +do_test subquery-2.2.2 {
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| +  execsql {
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| +    SELECT * FROM t3 WHERE a IN (SELECT b FROM t3);
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| +  }
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| +} {1 2}
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| +do_test subquery-2.2.3 {
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| +  execsql {
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| +    DROP TABLE t3;
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| +  }
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| +} {}
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| +do_test subquery-2.3.1 {
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| +  execsql {
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| +    CREATE TABLE t3(a TEXT);
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| +    INSERT INTO t3 VALUES('10');
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| +  }
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| +} {}
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| +do_test subquery-2.3.2 {
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| +  execsql {
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| +    SELECT a IN (10.0, 20) FROM t3;
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| +  }
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| +} {0}
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| +do_test subquery-2.3.3 {
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| +  execsql {
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| +    DROP TABLE t3;
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| +  }
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| +} {}
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| +do_test subquery-2.4.1 {
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| +  execsql {
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| +    CREATE TABLE t3(a TEXT);
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| +    INSERT INTO t3 VALUES('XX');
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| +  }
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| +} {}
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| +do_test subquery-2.4.2 {
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| +  execsql {
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| +    SELECT count(*) FROM t3 WHERE a IN (SELECT 'XX')
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| +  }
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| +} {1}
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| +do_test subquery-2.4.3 {
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| +  execsql {
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| +    DROP TABLE t3;
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| +  }
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| +} {}
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| +do_test subquery-2.5.1 {
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| +  execsql {
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| +    CREATE TABLE t3(a INTEGER);
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| +    INSERT INTO t3 VALUES(10);
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| +
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| +    CREATE TABLE t4(x TEXT);
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| +    INSERT INTO t4 VALUES('10.0');
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| +  }
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| +} {}
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| +do_test subquery-2.5.2 {
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| +  # In the expr "x IN (SELECT a FROM t3)" the RHS of the IN operator
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| +  # has text affinity and the LHS has integer affinity.  The rule is
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| +  # that we try to convert both sides to an integer before doing the
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| +  # comparision.  Hence, the integer value 10 in t3 will compare equal
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| +  # to the string value '10.0' in t4 because the t4 value will be
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| +  # converted into an integer.
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| +  execsql {
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| +    SELECT * FROM t4 WHERE x IN (SELECT a FROM t3);
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| +  }
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| +} {10.0}
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| +do_test subquery-2.5.3.1 {
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| +  # The t4i index cannot be used to resolve the "x IN (...)" constraint
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| +  # because the constraint has integer affinity but t4i has text affinity.
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| +  execsql {
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| +    CREATE INDEX t4i ON t4(x);
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| +    SELECT * FROM t4 WHERE x IN (SELECT a FROM t3);
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| +  }
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| +} {10.0}
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| +do_test subquery-2.5.3.2 {
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| +  # Verify that the t4i index was not used in the previous query
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| +  set ::sqlite_query_plan
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| +} {t4 {}}
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| +do_test subquery-2.5.4 {
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| +  execsql {
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| +    DROP TABLE t3;
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| +    DROP TABLE t4;
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| +  }
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| +} {}
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| +
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| +#------------------------------------------------------------------
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| +# The following test cases - subquery-3.* - test tickets that
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| +# were raised during development of correlated subqueries.
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| +#
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| +
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| +# Ticket 1083
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| +ifcapable view {
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| +  do_test subquery-3.1 {
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| +    catchsql { DROP TABLE t1; }
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| +    catchsql { DROP TABLE t2; }
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| +    execsql {
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| +      CREATE TABLE t1(a,b);
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| +      INSERT INTO t1 VALUES(1,2);
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| +      CREATE VIEW v1 AS SELECT b FROM t1 WHERE a>0;
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| +      CREATE TABLE t2(p,q);
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| +      INSERT INTO t2 VALUES(2,9);
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| +      SELECT * FROM v1 WHERE EXISTS(SELECT * FROM t2 WHERE p=v1.b);
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| +    }
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| +  } {2}
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| +  do_test subquery-3.1.1 {
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| +    execsql {
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| +      SELECT * FROM v1 WHERE EXISTS(SELECT 1);
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| +    }
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| +  } {2}
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| +} else {
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| +  catchsql { DROP TABLE t1; }
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| +  catchsql { DROP TABLE t2; }
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| +  execsql {
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| +    CREATE TABLE t1(a,b);
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| +    INSERT INTO t1 VALUES(1,2);
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| +    CREATE TABLE t2(p,q);
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| +    INSERT INTO t2 VALUES(2,9);
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| +  }
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| +}
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| +
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| +# Ticket 1084
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| +do_test subquery-3.2 {
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| +  catchsql {
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| +    CREATE TABLE t1(a,b);
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| +    INSERT INTO t1 VALUES(1,2);
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| +  }
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| +  execsql {
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| +    SELECT (SELECT t1.a) FROM t1;
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| +  }
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| +} {1}
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| +
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| +# Test Cases subquery-3.3.* test correlated subqueries where the
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| +# parent query is an aggregate query. Ticket #1105 is an example
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| +# of such a query.
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| +#
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| +do_test subquery-3.3.1 {
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| +  execsql {
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| +    SELECT a, (SELECT b) FROM t1 GROUP BY a;
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| +  }
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| +} {1 2}
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| +do_test subquery-3.3.2 {
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| +  catchsql {DROP TABLE t2}
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| +  execsql {
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| +    CREATE TABLE t2(c, d);
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| +    INSERT INTO t2 VALUES(1, 'one');
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| +    INSERT INTO t2 VALUES(2, 'two');
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| +    SELECT a, (SELECT d FROM t2 WHERE a=c) FROM t1 GROUP BY a;
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| +  }
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| +} {1 one}
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| +do_test subquery-3.3.3 {
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| +  execsql {
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| +    INSERT INTO t1 VALUES(2, 4);
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| +    SELECT max(a), (SELECT d FROM t2 WHERE a=c) FROM t1;
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| +  }
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| +} {2 two}
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| +do_test subquery-3.3.4 {
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| +  execsql {
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| +    SELECT a, (SELECT (SELECT d FROM t2 WHERE a=c)) FROM t1 GROUP BY a;
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| +  }
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| +} {1 one 2 two}
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| +do_test subquery-3.3.5 {
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| +  execsql {
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| +    SELECT a, (SELECT count(*) FROM t2 WHERE a=c) FROM t1;
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| +  }
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| +} {1 1 2 1}
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| +
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| +#------------------------------------------------------------------
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| +# These tests - subquery-4.* - use the TCL statement cache to try 
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| +# and expose bugs to do with re-using statements that have been 
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| +# passed to sqlite3_reset().
 | 
| +#
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| +# One problem was that VDBE memory cells were not being initialised
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| +# to NULL on the second and subsequent executions.
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| +#
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| +do_test subquery-4.1.1 {
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| +  execsql {
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| +    SELECT (SELECT a FROM t1);
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| +  }
 | 
| +} {1}
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| +do_test subquery-4.2 {
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| +  execsql {
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| +    DELETE FROM t1;
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| +    SELECT (SELECT a FROM t1);
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| +  }
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| +} {{}}
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| +do_test subquery-4.2.1 {
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| +  execsql {
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| +    CREATE TABLE t3(a PRIMARY KEY);
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| +    INSERT INTO t3 VALUES(10);
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| +  }
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| +  execsql {INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1)}
 | 
| +} {}
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| +do_test subquery-4.2.2 {
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| +  execsql {INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1)}
 | 
| +} {}
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| +
 | 
| +#------------------------------------------------------------------
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| +# The subquery-5.* tests make sure string literals in double-quotes
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| +# are handled efficiently.  Double-quote literals are first checked
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| +# to see if they match any column names.  If there is not column name
 | 
| +# match then those literals are used a string constants.  When a
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| +# double-quoted string appears, we want to make sure that the search
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| +# for a matching column name did not cause an otherwise static subquery
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| +# to become a dynamic (correlated) subquery.
 | 
| +#
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| +do_test subquery-5.1 {
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| +  proc callcntproc {n} {
 | 
| +    incr ::callcnt
 | 
| +    return $n
 | 
| +  }
 | 
| +  set callcnt 0
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| +  db function callcnt callcntproc
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| +  execsql {
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| +    CREATE TABLE t4(x,y);
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| +    INSERT INTO t4 VALUES('one',1);
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| +    INSERT INTO t4 VALUES('two',2);
 | 
| +    INSERT INTO t4 VALUES('three',3);
 | 
| +    INSERT INTO t4 VALUES('four',4);
 | 
| +    CREATE TABLE t5(a,b);
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| +    INSERT INTO t5 VALUES(1,11);
 | 
| +    INSERT INTO t5 VALUES(2,22);
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| +    INSERT INTO t5 VALUES(3,33);
 | 
| +    INSERT INTO t5 VALUES(4,44);
 | 
| +    SELECT b FROM t5 WHERE a IN 
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| +       (SELECT callcnt(y)+0 FROM t4 WHERE x="two")
 | 
| +  }
 | 
| +} {22}
 | 
| +do_test subquery-5.2 {
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| +  # This is the key test.  The subquery should have only run once.  If
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| +  # The double-quoted identifier "two" were causing the subquery to be
 | 
| +  # processed as a correlated subquery, then it would have run 4 times.
 | 
| +  set callcnt
 | 
| +} {1}
 | 
| +
 | 
| +
 | 
| +# Ticket #1380.  Make sure correlated subqueries on an IN clause work
 | 
| +# correctly when the left-hand side of the IN operator is constant.
 | 
| +#
 | 
| +do_test subquery-6.1 {
 | 
| +  set callcnt 0
 | 
| +  execsql {
 | 
| +    SELECT x FROM t4 WHERE 1 IN (SELECT callcnt(count(*)) FROM t5 WHERE a=y)
 | 
| +  }
 | 
| +} {one two three four}
 | 
| +do_test subquery-6.2 {
 | 
| +  set callcnt
 | 
| +} {4}
 | 
| +do_test subquery-6.3 {
 | 
| +  set callcnt 0
 | 
| +  execsql {
 | 
| +    SELECT x FROM t4 WHERE 1 IN (SELECT callcnt(count(*)) FROM t5 WHERE a=1)
 | 
| +  }
 | 
| +} {one two three four}
 | 
| +do_test subquery-6.4 {
 | 
| +  set callcnt
 | 
| +} {1}
 | 
| +
 | 
| +if 0 {   #############  disable until we get #2652 fixed
 | 
| +# Ticket #2652.  Allow aggregate functions of outer queries inside
 | 
| +# a non-aggregate subquery.
 | 
| +#
 | 
| +do_test subquery-7.1 {
 | 
| +  execsql {
 | 
| +    CREATE TABLE t7(c7);
 | 
| +    INSERT INTO t7 VALUES(1);
 | 
| +    INSERT INTO t7 VALUES(2);
 | 
| +    INSERT INTO t7 VALUES(3);
 | 
| +    CREATE TABLE t8(c8);
 | 
| +    INSERT INTO t8 VALUES(100);
 | 
| +    INSERT INTO t8 VALUES(200);
 | 
| +    INSERT INTO t8 VALUES(300);
 | 
| +    CREATE TABLE t9(c9);
 | 
| +    INSERT INTO t9 VALUES(10000);
 | 
| +    INSERT INTO t9 VALUES(20000);
 | 
| +    INSERT INTO t9 VALUES(30000);
 | 
| +
 | 
| +    SELECT (SELECT c7+c8 FROM t7) FROM t8;
 | 
| +  }
 | 
| +} {101 201 301}
 | 
| +do_test subquery-7.2 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT max(c7)+c8 FROM t7) FROM t8;
 | 
| +  }
 | 
| +} {103 203 303}
 | 
| +do_test subquery-7.3 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT c7+max(c8) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {301}
 | 
| +do_test subquery-7.4 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT max(c7)+max(c8) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {303}
 | 
| +do_test subquery-7.5 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT c8 FROM t8 WHERE rowid=max(c7)) FROM t7
 | 
| +  }
 | 
| +} {300}
 | 
| +do_test subquery-7.6 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT (SELECT max(c7+c8+c9) FROM t9) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {30101 30102 30103}
 | 
| +do_test subquery-7.7 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT (SELECT c7+max(c8+c9) FROM t9) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {30101 30102 30103}
 | 
| +do_test subquery-7.8 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT (SELECT max(c7)+c8+c9 FROM t9) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {10103}
 | 
| +do_test subquery-7.9 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT (SELECT c7+max(c8)+c9 FROM t9) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {10301 10302 10303}
 | 
| +do_test subquery-7.10 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT (SELECT c7+c8+max(c9) FROM t9) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {30101 30102 30103}
 | 
| +do_test subquery-7.11 {
 | 
| +  execsql {
 | 
| +    SELECT (SELECT (SELECT max(c7)+max(c8)+max(c9) FROM t9) FROM t8) FROM t7
 | 
| +  }
 | 
| +} {30303}
 | 
| +}  ;############# Disabled
 | 
| +
 | 
| +finish_test
 | 
| 
 |