# 2001 September 15

#

# 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.  The

# focus of this file is testing the SELECT statement.

#

# $Id: select1.test,v 1.65 2008/08/04 03:51:24 danielk1977 Exp $

set testdir [file dirname $argv0]

source $testdir/tester.tcl

# Try to select on a non-existant table.

#

do_test select1-1.1 {

  set v [catch {execsql {SELECT * FROM test1}} msg]

  lappend v $msg

} {1 {no such table: test1}}

execsql {CREATE TABLE test1(f1 int, f2 int)}

do_test select1-1.2 {

  set v [catch {execsql {SELECT * FROM test1, test2}} msg]

  lappend v $msg

} {1 {no such table: test2}}

do_test select1-1.3 {

  set v [catch {execsql {SELECT * FROM test2, test1}} msg]

  lappend v $msg

} {1 {no such table: test2}}

execsql {INSERT INTO test1(f1,f2) VALUES(11,22)}

# Make sure the columns are extracted correctly.

#

do_test select1-1.4 {

  execsql {SELECT f1 FROM test1}

} {11}

do_test select1-1.5 {

  execsql {SELECT f2 FROM test1}

} {22}

do_test select1-1.6 {

  execsql {SELECT f2, f1 FROM test1}

} {22 11}

do_test select1-1.7 {

  execsql {SELECT f1, f2 FROM test1}

} {11 22}

do_test select1-1.8 {

  execsql {SELECT * FROM test1}

} {11 22}

do_test select1-1.8.1 {

  execsql {SELECT *, * FROM test1}

} {11 22 11 22}

do_test select1-1.8.2 {

  execsql {SELECT *, min(f1,f2), max(f1,f2) FROM test1}

} {11 22 11 22}

do_test select1-1.8.3 {

  execsql {SELECT 'one', *, 'two', * FROM test1}

} {one 11 22 two 11 22}

execsql {CREATE TABLE test2(r1 real, r2 real)}

execsql {INSERT INTO test2(r1,r2) VALUES(1.1,2.2)}

do_test select1-1.9 {

  execsql {SELECT * FROM test1, test2}

} {11 22 1.1 2.2}

do_test select1-1.9.1 {

  execsql {SELECT *, 'hi' FROM test1, test2}

} {11 22 1.1 2.2 hi}

do_test select1-1.9.2 {

  execsql {SELECT 'one', *, 'two', * FROM test1, test2}

} {one 11 22 1.1 2.2 two 11 22 1.1 2.2}

do_test select1-1.10 {

  execsql {SELECT test1.f1, test2.r1 FROM test1, test2}

} {11 1.1}

do_test select1-1.11 {

  execsql {SELECT test1.f1, test2.r1 FROM test2, test1}

} {11 1.1}

do_test select1-1.11.1 {

  execsql {SELECT * FROM test2, test1}

} {1.1 2.2 11 22}

do_test select1-1.11.2 {

  execsql {SELECT * FROM test1 AS a, test1 AS b}

} {11 22 11 22}

do_test select1-1.12 {

  execsql {SELECT max(test1.f1,test2.r1), min(test1.f2,test2.r2)

           FROM test2, test1}

} {11 2.2}

do_test select1-1.13 {

  execsql {SELECT min(test1.f1,test2.r1), max(test1.f2,test2.r2)

           FROM test1, test2}

} {1.1 22}

set long {This is a string that is too big to fit inside a NBFS buffer}

do_test select1-2.0 {

  execsql "

    DROP TABLE test2;

    DELETE FROM test1;

    INSERT INTO test1 VALUES(11,22);

    INSERT INTO test1 VALUES(33,44);

    CREATE TABLE t3(a,b);

    INSERT INTO t3 VALUES('abc',NULL);

    INSERT INTO t3 VALUES(NULL,'xyz');

    INSERT INTO t3 SELECT * FROM test1;

    CREATE TABLE t4(a,b);

    INSERT INTO t4 VALUES(NULL,'$long');

    SELECT * FROM t3;

  "

} {abc {} {} xyz 11 22 33 44}

# Error messges from sqliteExprCheck

#

do_test select1-2.1 {

  set v [catch {execsql {SELECT count(f1,f2) FROM test1}} msg]

  lappend v $msg

} {1 {wrong number of arguments to function count()}}

do_test select1-2.2 {

  set v [catch {execsql {SELECT count(f1) FROM test1}} msg]

  lappend v $msg

} {0 2}

do_test select1-2.3 {

  set v [catch {execsql {SELECT Count() FROM test1}} msg]

  lappend v $msg

} {0 2}

do_test select1-2.4 {

  set v [catch {execsql {SELECT COUNT(*) FROM test1}} msg]

  lappend v $msg

} {0 2}

do_test select1-2.5 {

  set v [catch {execsql {SELECT COUNT(*)+1 FROM test1}} msg]

  lappend v $msg

} {0 3}

do_test select1-2.5.1 {

  execsql {SELECT count(*),count(a),count(b) FROM t3}

} {4 3 3}

do_test select1-2.5.2 {

  execsql {SELECT count(*),count(a),count(b) FROM t4}

} {1 0 1}

do_test select1-2.5.3 {

  execsql {SELECT count(*),count(a),count(b) FROM t4 WHERE b=5}

} {0 0 0}

do_test select1-2.6 {

  set v [catch {execsql {SELECT min(*) FROM test1}} msg]

  lappend v $msg

} {1 {wrong number of arguments to function min()}}

do_test select1-2.7 {

  set v [catch {execsql {SELECT Min(f1) FROM test1}} msg]

  lappend v $msg

} {0 11}

do_test select1-2.8 {

  set v [catch {execsql {SELECT MIN(f1,f2) FROM test1}} msg]

  lappend v [lsort $msg]

} {0 {11 33}}

do_test select1-2.8.1 {

  execsql {SELECT coalesce(min(a),'xyzzy') FROM t3}

} {11}

do_test select1-2.8.2 {

  execsql {SELECT min(coalesce(a,'xyzzy')) FROM t3}

} {11}

do_test select1-2.8.3 {

  execsql {SELECT min(b), min(b) FROM t4}

} [list $long $long]

do_test select1-2.9 {

  set v [catch {execsql {SELECT MAX(*) FROM test1}} msg]

  lappend v $msg

} {1 {wrong number of arguments to function MAX()}}

do_test select1-2.10 {

  set v [catch {execsql {SELECT Max(f1) FROM test1}} msg]

  lappend v $msg

} {0 33}

do_test select1-2.11 {

  set v [catch {execsql {SELECT max(f1,f2) FROM test1}} msg]

  lappend v [lsort $msg]

} {0 {22 44}}

do_test select1-2.12 {

  set v [catch {execsql {SELECT MAX(f1,f2)+1 FROM test1}} msg]

  lappend v [lsort $msg]

} {0 {23 45}}

do_test select1-2.13 {

  set v [catch {execsql {SELECT MAX(f1)+1 FROM test1}} msg]

  lappend v $msg

} {0 34}

do_test select1-2.13.1 {

  execsql {SELECT coalesce(max(a),'xyzzy') FROM t3}

} {abc}

do_test select1-2.13.2 {

  execsql {SELECT max(coalesce(a,'xyzzy')) FROM t3}

} {xyzzy}

do_test select1-2.14 {

  set v [catch {execsql {SELECT SUM(*) FROM test1}} msg]

  lappend v $msg

} {1 {wrong number of arguments to function SUM()}}

do_test select1-2.15 {

  set v [catch {execsql {SELECT Sum(f1) FROM test1}} msg]

  lappend v $msg

} {0 44}

do_test select1-2.16 {

  set v [catch {execsql {SELECT sum(f1,f2) FROM test1}} msg]

  lappend v $msg

} {1 {wrong number of arguments to function sum()}}

do_test select1-2.17 {

  set v [catch {execsql {SELECT SUM(f1)+1 FROM test1}} msg]

  lappend v $msg

} {0 45}

do_test select1-2.17.1 {

  execsql {SELECT sum(a) FROM t3}

} {44.0}

do_test select1-2.18 {

  set v [catch {execsql {SELECT XYZZY(f1) FROM test1}} msg]

  lappend v $msg

} {1 {no such function: XYZZY}}

do_test select1-2.19 {

  set v [catch {execsql {SELECT SUM(min(f1,f2)) FROM test1}} msg]

  lappend v $msg

} {0 44}

do_test select1-2.20 {

  set v [catch {execsql {SELECT SUM(min(f1)) FROM test1}} msg]

  lappend v $msg

} {1 {misuse of aggregate function min()}}

# Ticket #2526

#

do_test select1-2.21 {

  catchsql {

     SELECT min(f1) AS m FROM test1 GROUP BY f1 HAVING max(m+5)<10

  }

} {1 {misuse of aliased aggregate m}}

do_test select1-2.22 {

  catchsql {

     SELECT coalesce(min(f1)+5,11) AS m FROM test1

      GROUP BY f1

     HAVING max(m+5)<10

  }

} {1 {misuse of aliased aggregate m}}

do_test select1-2.23 {

  execsql {

    CREATE TABLE tkt2526(a,b,c PRIMARY KEY);

    INSERT INTO tkt2526 VALUES('x','y',NULL);

    INSERT INTO tkt2526 VALUES('x','z',NULL);

  }

  catchsql {

    SELECT count(a) AS cn FROM tkt2526 GROUP BY a HAVING cn<max(cn)

  }

} {1 {misuse of aliased aggregate cn}}

# WHERE clause expressions

#

do_test select1-3.1 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1<11}} msg]

  lappend v $msg

} {0 {}}

do_test select1-3.2 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1<=11}} msg]

  lappend v $msg

} {0 11}

do_test select1-3.3 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1=11}} msg]

  lappend v $msg

} {0 11}

do_test select1-3.4 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1>=11}} msg]

  lappend v [lsort $msg]

} {0 {11 33}}

do_test select1-3.5 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1>11}} msg]

  lappend v [lsort $msg]

} {0 33}

do_test select1-3.6 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1!=11}} msg]

  lappend v [lsort $msg]

} {0 33}

do_test select1-3.7 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE min(f1,f2)!=11}} msg]

  lappend v [lsort $msg]

} {0 33}

do_test select1-3.8 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE max(f1,f2)!=11}} msg]

  lappend v [lsort $msg]

} {0 {11 33}}

do_test select1-3.9 {

  set v [catch {execsql {SELECT f1 FROM test1 WHERE count(f1,f2)!=11}} msg]

  lappend v $msg

} {1 {wrong number of arguments to function count()}}

# ORDER BY expressions

#

do_test select1-4.1 {

  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY f1}} msg]

  lappend v $msg

} {0 {11 33}}

do_test select1-4.2 {

  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY -f1}} msg]

  lappend v $msg

} {0 {33 11}}

do_test select1-4.3 {

  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY min(f1,f2)}} msg]

  lappend v $msg

} {0 {11 33}}

do_test select1-4.4 {

  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY min(f1)}} msg]

  lappend v $msg

} {1 {misuse of aggregate: min(f1)}}

# The restriction not allowing constants in the ORDER BY clause

# has been removed.  See ticket #1768

#do_test select1-4.5 {

#  catchsql {

#    SELECT f1 FROM test1 ORDER BY 8.4;

#  }

#} {1 {ORDER BY terms must not be non-integer constants}}

#do_test select1-4.6 {

#  catchsql {

#    SELECT f1 FROM test1 ORDER BY '8.4';

#  }

#} {1 {ORDER BY terms must not be non-integer constants}}

#do_test select1-4.7.1 {

#  catchsql {

#    SELECT f1 FROM test1 ORDER BY 'xyz';

#  }

#} {1 {ORDER BY terms must not be non-integer constants}}

#do_test select1-4.7.2 {

#  catchsql {

#    SELECT f1 FROM test1 ORDER BY -8.4;

#  }

#} {1 {ORDER BY terms must not be non-integer constants}}

#do_test select1-4.7.3 {

#  catchsql {

#    SELECT f1 FROM test1 ORDER BY +8.4;

#  }

#} {1 {ORDER BY terms must not be non-integer constants}}

#do_test select1-4.7.4 {

#  catchsql {

#    SELECT f1 FROM test1 ORDER BY 4294967296; -- constant larger than 32 bits

#  }

#} {1 {ORDER BY terms must not be non-integer constants}}

do_test select1-4.5 {

  execsql {

    SELECT f1 FROM test1 ORDER BY 8.4

  }

} {11 33}

do_test select1-4.6 {

  execsql {

    SELECT f1 FROM test1 ORDER BY '8.4'

  }

} {11 33}

do_test select1-4.8 {

  execsql {

    CREATE TABLE t5(a,b);

    INSERT INTO t5 VALUES(1,10);

    INSERT INTO t5 VALUES(2,9);

    SELECT * FROM t5 ORDER BY 1;

  }

} {1 10 2 9}

do_test select1-4.9.1 {

  execsql {

    SELECT * FROM t5 ORDER BY 2;

  }

} {2 9 1 10}

do_test select1-4.9.2 {

  execsql {

    SELECT * FROM t5 ORDER BY +2;

  }

} {2 9 1 10}

do_test select1-4.10.1 {

  catchsql {

    SELECT * FROM t5 ORDER BY 3;

  }

} {1 {1st ORDER BY term out of range - should be between 1 and 2}}

do_test select1-4.10.2 {

  catchsql {

    SELECT * FROM t5 ORDER BY -1;

  }

} {1 {1st ORDER BY term out of range - should be between 1 and 2}}

do_test select1-4.11 {

  execsql {

    INSERT INTO t5 VALUES(3,10);

    SELECT * FROM t5 ORDER BY 2, 1 DESC;

  }

} {2 9 3 10 1 10}

do_test select1-4.12 {

  execsql {

    SELECT * FROM t5 ORDER BY 1 DESC, b;

  }

} {3 10 2 9 1 10}

do_test select1-4.13 {

  execsql {

    SELECT * FROM t5 ORDER BY b DESC, 1;

  }

} {1 10 3 10 2 9}

# ORDER BY ignored on an aggregate query

#

do_test select1-5.1 {

  set v [catch {execsql {SELECT max(f1) FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 33}

execsql {CREATE TABLE test2(t1 text, t2 text)}

execsql {INSERT INTO test2 VALUES('abc','xyz')}

# Check for column naming

#

do_test select1-6.1 {

  set v [catch {execsql2 {SELECT f1 FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {f1 11 f1 33}}

do_test select1-6.1.1 {

  db eval {PRAGMA full_column_names=on}

  set v [catch {execsql2 {SELECT f1 FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {test1.f1 11 test1.f1 33}}

do_test select1-6.1.2 {

  set v [catch {execsql2 {SELECT f1 as 'f1' FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {f1 11 f1 33}}

do_test select1-6.1.3 {

  set v [catch {execsql2 {SELECT * FROM test1 WHERE f1==11}} msg]

  lappend v $msg

} {0 {f1 11 f2 22}}

do_test select1-6.1.4 {

  set v [catch {execsql2 {SELECT DISTINCT * FROM test1 WHERE f1==11}} msg]

  db eval {PRAGMA full_column_names=off}

  lappend v $msg

} {0 {f1 11 f2 22}}

do_test select1-6.1.5 {

  set v [catch {execsql2 {SELECT * FROM test1 WHERE f1==11}} msg]

  lappend v $msg

} {0 {f1 11 f2 22}}

do_test select1-6.1.6 {

  set v [catch {execsql2 {SELECT DISTINCT * FROM test1 WHERE f1==11}} msg]

  lappend v $msg

} {0 {f1 11 f2 22}}

do_test select1-6.2 {

  set v [catch {execsql2 {SELECT f1 as xyzzy FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {xyzzy 11 xyzzy 33}}

do_test select1-6.3 {

  set v [catch {execsql2 {SELECT f1 as "xyzzy" FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {xyzzy 11 xyzzy 33}}

do_test select1-6.3.1 {

  set v [catch {execsql2 {SELECT f1 as 'xyzzy ' FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {{xyzzy } 11 {xyzzy } 33}}

do_test select1-6.4 {

  set v [catch {execsql2 {SELECT f1+F2 as xyzzy FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {xyzzy 33 xyzzy 77}}

do_test select1-6.4a {

  set v [catch {execsql2 {SELECT f1+F2 FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {f1+F2 33 f1+F2 77}}

do_test select1-6.5 {

  set v [catch {execsql2 {SELECT test1.f1+F2 FROM test1 ORDER BY f2}} msg]

  lappend v $msg

} {0 {test1.f1+F2 33 test1.f1+F2 77}}

do_test select1-6.5.1 {

  execsql2 {PRAGMA full_column_names=on}

  set v [catch {execsql2 {SELECT test1.f1+F2 FROM test1 ORDER BY f2}} msg]

  execsql2 {PRAGMA full_column_names=off}

  lappend v $msg

} {0 {test1.f1+F2 33 test1.f1+F2 77}}

do_test select1-6.6 {

  set v [catch {execsql2 {SELECT test1.f1+F2, t1 FROM test1, test2 

         ORDER BY f2}} msg]

  lappend v $msg

} {0 {test1.f1+F2 33 t1 abc test1.f1+F2 77 t1 abc}}

do_test select1-6.7 {

  set v [catch {execsql2 {SELECT A.f1, t1 FROM test1 as A, test2 

         ORDER BY f2}} msg]

  lappend v $msg

} {0 {f1 11 t1 abc f1 33 t1 abc}}

do_test select1-6.8 {

  set v [catch {execsql2 {SELECT A.f1, f1 FROM test1 as A, test1 as B 

         ORDER BY f2}} msg]

  lappend v $msg

} {1 {ambiguous column name: f1}}

do_test select1-6.8b {

  set v [catch {execsql2 {SELECT A.f1, B.f1 FROM test1 as A, test1 as B 

         ORDER BY f2}} msg]

  lappend v $msg

} {1 {ambiguous column name: f2}}

do_test select1-6.8c {

  set v [catch {execsql2 {SELECT A.f1, f1 FROM test1 as A, test1 as A 

         ORDER BY f2}} msg]

  lappend v $msg

} {1 {ambiguous column name: A.f1}}

do_test select1-6.9.1 {

  set v [catch {execsql {SELECT A.f1, B.f1 FROM test1 as A, test1 as B 

         ORDER BY A.f1, B.f1}} msg]

  lappend v $msg

} {0 {11 11 11 33 33 11 33 33}}

do_test select1-6.9.2 {

  set v [catch {execsql2 {SELECT A.f1, B.f1 FROM test1 as A, test1 as B 

         ORDER BY A.f1, B.f1}} msg]

  lappend v $msg

} {0 {f1 11 f1 11 f1 33 f1 33 f1 11 f1 11 f1 33 f1 33}}

do_test select1-6.9.3 {

  db eval {

     PRAGMA short_column_names=OFF;

     PRAGMA full_column_names=OFF;

  }

  execsql2 {

     SELECT test1 . f1, test1 . f2 FROM test1 LIMIT 1

  }

} {{test1 . f1} 11 {test1 . f2} 22}

do_test select1-6.9.4 {

  db eval {

     PRAGMA short_column_names=OFF;

     PRAGMA full_column_names=ON;

  }

  execsql2 {

     SELECT test1 . f1, test1 . f2 FROM test1 LIMIT 1

  }

} {test1.f1 11 test1.f2 22}

do_test select1-6.9.5 {

  db eval {

     PRAGMA short_column_names=OFF;

     PRAGMA full_column_names=ON;

  }

  execsql2 {

     SELECT 123.45;

  }

} {123.45 123.45}

do_test select1-6.9.6 {

  execsql2 {

     SELECT * FROM test1 a, test1 b LIMIT 1

  }

} {a.f1 11 a.f2 22 b.f1 11 b.f2 22}

do_test select1-6.9.7 {

  set x [execsql2 {

     SELECT * FROM test1 a, (select 5, 6) LIMIT 1

  }]

  regsub -all {subquery_[0-9a-fA-F]+_} $x {subquery} x

  set x

} {a.f1 11 a.f2 22 sqlite_subquery.5 5 sqlite_subquery.6 6}

do_test select1-6.9.8 {

  set x [execsql2 {

     SELECT * FROM test1 a, (select 5 AS x, 6 AS y) AS b LIMIT 1

  }]

  regsub -all {subquery_[0-9a-fA-F]+_} $x {subquery} x

  set x

} {a.f1 11 a.f2 22 b.x 5 b.y 6}

do_test select1-6.9.9 {

  execsql2 {

     SELECT a.f1, b.f2 FROM test1 a, test1 b LIMIT 1

  }

} {test1.f1 11 test1.f2 22}

do_test select1-6.9.10 {

  execsql2 {

     SELECT f1, t1 FROM test1, test2 LIMIT 1

  }

} {test1.f1 11 test2.t1 abc}

do_test select1-6.9.11 {

  db eval {

     PRAGMA short_column_names=ON;

     PRAGMA full_column_names=ON;

  }

  execsql2 {

     SELECT a.f1, b.f2 FROM test1 a, test1 b LIMIT 1

  }

} {test1.f1 11 test1.f2 22}

do_test select1-6.9.12 {

  execsql2 {

     SELECT f1, t1 FROM test1, test2 LIMIT 1

  }

} {test1.f1 11 test2.t1 abc}

do_test select1-6.9.13 {

  db eval {

     PRAGMA short_column_names=ON;

     PRAGMA full_column_names=OFF;

  }

  execsql2 {

     SELECT a.f1, b.f1 FROM test1 a, test1 b LIMIT 1

  }

} {f1 11 f1 11}

do_test select1-6.9.14 {

  execsql2 {

     SELECT f1, t1 FROM test1, test2 LIMIT 1

  }

} {f1 11 t1 abc}

do_test select1-6.9.15 {

  db eval {

     PRAGMA short_column_names=OFF;

     PRAGMA full_column_names=ON;

  }

  execsql2 {

     SELECT a.f1, b.f1 FROM test1 a, test1 b LIMIT 1

  }

} {test1.f1 11 test1.f1 11}

do_test select1-6.9.16 {

  execsql2 {

     SELECT f1, t1 FROM test1, test2 LIMIT 1

  }

} {test1.f1 11 test2.t1 abc}

db eval {

  PRAGMA short_column_names=ON;

  PRAGMA full_column_names=OFF;

}

ifcapable compound {

do_test select1-6.10 {

  set v [catch {execsql2 {

    SELECT f1 FROM test1 UNION SELECT f2 FROM test1

    ORDER BY f2;

  }} msg]

  lappend v $msg

} {0 {f1 11 f1 22 f1 33 f1 44}}

do_test select1-6.11 {

  set v [catch {execsql2 {

    SELECT f1 FROM test1 UNION SELECT f2+100 FROM test1

    ORDER BY f2+101;

  }} msg]

  lappend v $msg

} {1 {1st ORDER BY term does not match any column in the result set}}

# Ticket #2296

ifcapable subquery&&compound {

do_test select1-6.20 {

   execsql {

     CREATE TABLE t6(a TEXT, b TEXT);

     INSERT INTO t6 VALUES('a','0');

     INSERT INTO t6 VALUES('b','1');

     INSERT INTO t6 VALUES('c','2');

     INSERT INTO t6 VALUES('d','3');

     SELECT a FROM t6 WHERE b IN 

        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x

                 ORDER BY 1 LIMIT 1)

   }

} {a}

do_test select1-6.21 {

   execsql {

     SELECT a FROM t6 WHERE b IN 

        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x

                 ORDER BY 1 DESC LIMIT 1)

   }

} {d}

do_test select1-6.22 {

   execsql {

     SELECT a FROM t6 WHERE b IN 

        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x

                 ORDER BY b LIMIT 2)

     ORDER BY a;

   }

} {a b}

do_test select1-6.23 {

   execsql {

     SELECT a FROM t6 WHERE b IN 

        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x

                 ORDER BY x DESC LIMIT 2)

     ORDER BY a;

   }

} {b d}

}

} ;#ifcapable compound

do_test select1-7.1 {

  set v [catch {execsql {

     SELECT f1 FROM test1 WHERE f2=;

  }} msg]

  lappend v $msg

} {1 {near ";": syntax error}}

ifcapable compound {

do_test select1-7.2 {

  set v [catch {execsql {

     SELECT f1 FROM test1 UNION SELECT WHERE;

  }} msg]

  lappend v $msg

} {1 {near "WHERE": syntax error}}

} ;# ifcapable compound

do_test select1-7.3 {

  set v [catch {execsql {SELECT f1 FROM test1 as 'hi', test2 as}} msg]

  lappend v $msg

} {1 {near "as": syntax error}}

do_test select1-7.4 {

  set v [catch {execsql {

     SELECT f1 FROM test1 ORDER BY;

  }} msg]

  lappend v $msg

} {1 {near ";": syntax error}}

do_test select1-7.5 {

  set v [catch {execsql {

     SELECT f1 FROM test1 ORDER BY f1 desc, f2 where;

  }} msg]

  lappend v $msg

} {1 {near "where": syntax error}}

do_test select1-7.6 {

  set v [catch {execsql {

     SELECT count(f1,f2 FROM test1;

  }} msg]

  lappend v $msg

} {1 {near "FROM": syntax error}}

do_test select1-7.7 {

  set v [catch {execsql {

     SELECT count(f1,f2+) FROM test1;

  }} msg]

  lappend v $msg

} {1 {near ")": syntax error}}

do_test select1-7.8 {

  set v [catch {execsql {

     SELECT f1 FROM test1 ORDER BY f2, f1+;

  }} msg]

  lappend v $msg

} {1 {near ";": syntax error}}

do_test select1-7.9 {

  catchsql {

     SELECT f1 FROM test1 LIMIT 5+3 OFFSET 11 ORDER BY f2;

  }

} {1 {near "ORDER": syntax error}}

do_test select1-8.1 {

  execsql {SELECT f1 FROM test1 WHERE 4.3+2.4 OR 1 ORDER BY f1}

} {11 33}

do_test select1-8.2 {

  execsql {

    SELECT f1 FROM test1 WHERE ('x' || f1) BETWEEN 'x10' AND 'x20'

    ORDER BY f1

  }

} {11}

do_test select1-8.3 {

  execsql {

    SELECT f1 FROM test1 WHERE 5-3==2

    ORDER BY f1

  }

} {11 33}

# TODO: This test is failing because f1 is now being loaded off the

# disk as a vdbe integer, not a string. Hence the value of f1/(f1-11)

# changes because of rounding. Disable the test for now.

if 0 {

do_test select1-8.4 {

  execsql {

    SELECT coalesce(f1/(f1-11),'x'),

           coalesce(min(f1/(f1-11),5),'y'),

           coalesce(max(f1/(f1-33),6),'z')

    FROM test1 ORDER BY f1

  }

} {x y 6 1.5 1.5 z}

}

do_test select1-8.5 {

  execsql {

    SELECT min(1,2,3), -max(1,2,3)

    FROM test1 ORDER BY f1

  }

} {1 -3 1 -3}

# Check the behavior when the result set is empty

#

# SQLite v3 always sets r(*).

#

# do_test select1-9.1 {

#   catch {unset r}

#   set r(*) {}

#   db eval {SELECT * FROM test1 WHERE f1<0} r {}

#   set r(*)

# } {}

do_test select1-9.2 {

  execsql {PRAGMA empty_result_callbacks=on}

  catch {unset r}

  set r(*) {}

  db eval {SELECT * FROM test1 WHERE f1<0} r {}

  set r(*)

} {f1 f2}

ifcapable subquery {

  do_test select1-9.3 {

    set r(*) {}

    db eval {SELECT * FROM test1 WHERE f1<(select count(*) from test2)} r {}

    set r(*)

  } {f1 f2}

}

do_test select1-9.4 {

  set r(*) {}

  db eval {SELECT * FROM test1 ORDER BY f1} r {}

  set r(*)

} {f1 f2}

do_test select1-9.5 {

  set r(*) {}

  db eval {SELECT * FROM test1 WHERE f1<0 ORDER BY f1} r {}

  set r(*)

} {f1 f2}

unset r

# Check for ORDER BY clauses that refer to an AS name in the column list

#

do_test select1-10.1 {

  execsql {

    SELECT f1 AS x FROM test1 ORDER BY x

  }

} {11 33}

do_test select1-10.2 {

  execsql {

    SELECT f1 AS x FROM test1 ORDER BY -x

  }

} {33 11}

do_test select1-10.3 {

  execsql {

    SELECT f1-23 AS x FROM test1 ORDER BY abs(x)

  }

} {10 -12}

do_test select1-10.4 {

  execsql {

    SELECT f1-23 AS x FROM test1 ORDER BY -abs(x)

  }

} {-12 10}

do_test select1-10.5 {

  execsql {

    SELECT f1-22 AS x, f2-22 as y FROM test1

  }

} {-11 0 11 22}

do_test select1-10.6 {

  execsql {

    SELECT f1-22 AS x, f2-22 as y FROM test1 WHERE x>0 AND y<50

  }

} {11 22}

do_test select1-10.7 {

  execsql {

    SELECT f1 COLLATE nocase AS x FROM test1 ORDER BY x

  }

} {11 33}

# Check the ability to specify "TABLE.*" in the result set of a SELECT

#

do_test select1-11.1 {

  execsql {

    DELETE FROM t3;

    DELETE FROM t4;

    INSERT INTO t3 VALUES(1,2);

    INSERT INTO t4 VALUES(3,4);

    SELECT * FROM t3, t4;

  }

} {1 2 3 4}

do_test select1-11.2.1 {

  execsql {

    SELECT * FROM t3, t4;

  }

} {1 2 3 4}

do_test select1-11.2.2 {

  execsql2 {

    SELECT * FROM t3, t4;

  }

} {a 3 b 4 a 3 b 4}

do_test select1-11.4.1 {

  execsql {

    SELECT t3.*, t4.b FROM t3, t4;

  }

} {1 2 4}

do_test select1-11.4.2 {

  execsql {

    SELECT "t3".*, t4.b FROM t3, t4;

  }

} {1 2 4}

do_test select1-11.5.1 {

  execsql2 {

    SELECT t3.*, t4.b FROM t3, t4;

  }

} {a 1 b 4 b 4}

do_test select1-11.6 {

  execsql2 {

    SELECT x.*, y.b FROM t3 AS x, t4 AS y;

  }

} {a 1 b 4 b 4}

do_test select1-11.7 {

  execsql {

    SELECT t3.b, t4.* FROM t3, t4;

  }

} {2 3 4}

do_test select1-11.8 {

  execsql2 {

    SELECT t3.b, t4.* FROM t3, t4;

  }

} {b 4 a 3 b 4}

do_test select1-11.9 {

  execsql2 {

    SELECT x.b, y.* FROM t3 AS x, t4 AS y;

  }

} {b 4 a 3 b 4}

do_test select1-11.10 {

  catchsql {

    SELECT t5.* FROM t3, t4;

  }

} {1 {no such table: t5}}

do_test select1-11.11 {

  catchsql {

    SELECT t3.* FROM t3 AS x, t4;

  }

} {1 {no such table: t3}}

ifcapable subquery {

  do_test select1-11.12 {

    execsql2 {

      SELECT t3.* FROM t3, (SELECT max(a), max(b) FROM t4)

    }

  } {a 1 b 2}

  do_test select1-11.13 {

    execsql2 {

      SELECT t3.* FROM (SELECT max(a), max(b) FROM t4), t3

    }

  } {a 1 b 2}

  do_test select1-11.14 {

    execsql2 {

      SELECT * FROM t3, (SELECT max(a), max(b) FROM t4) AS 'tx'

    }

  } {a 1 b 2 max(a) 3 max(b) 4}

  do_test select1-11.15 {

    execsql2 {

      SELECT y.*, t3.* FROM t3, (SELECT max(a), max(b) FROM t4) AS y

    }

  } {max(a) 3 max(b) 4 a 1 b 2}

}

do_test select1-11.16 {

  execsql2 {

    SELECT y.* FROM t3 as y, t4 as z

  }

} {a 1 b 2}

# Tests of SELECT statements without a FROM clause.

#

do_test select1-12.1 {

  execsql2 {

    SELECT 1+2+3

  }

} {1+2+3 6}

do_test select1-12.2 {

  execsql2 {

    SELECT 1,'hello',2

  }

} {1 1 'hello' hello 2 2}

do_test select1-12.3 {

  execsql2 {

    SELECT 1 AS 'a','hello' AS 'b',2 AS 'c'

  }

} {a 1 b hello c 2}

do_test select1-12.4 {

  execsql {

    DELETE FROM t3;

    INSERT INTO t3 VALUES(1,2);

  }

} {}

ifcapable compound {

do_test select1-12.5 {

  execsql {

    SELECT * FROM t3 UNION SELECT 3 AS 'a', 4 ORDER BY a;

  }

} {1 2 3 4}

do_test select1-12.6 {

  execsql {

    SELECT 3, 4 UNION SELECT * FROM t3;

  }

} {1 2 3 4}

} ;# ifcapable compound

ifcapable subquery {

  do_test select1-12.7 {

    execsql {

      SELECT * FROM t3 WHERE a=(SELECT 1);

    }

  } {1 2}

  do_test select1-12.8 {

    execsql {

      SELECT * FROM t3 WHERE a=(SELECT 2);

    }

  } {}

}

ifcapable {compound && subquery} {

  do_test select1-12.9 {

    execsql2 {

      SELECT x FROM (

        SELECT a AS x, b AS y FROM t3 UNION SELECT a,b FROM t4 ORDER BY a,b

      ) ORDER BY x;

    }

  } {x 1 x 3}

  do_test select1-12.10 {

    execsql2 {

      SELECT z.x FROM (

        SELECT a AS x,b AS y FROM t3 UNION SELECT a, b FROM t4 ORDER BY a,b

      ) AS 'z' ORDER BY x;

    }