SQLite-2.5.0-for-code-reading/test/select1.test

# 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 1.30 2002/06/02 16:09:03 drh 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}
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()}}

# 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 function min()}}
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 {
  catchsql {
    SELECT f1 FROM test1 ORDER BY 'xyz';
  }
} {1 {ORDER BY terms must not be non-integer constants}}
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 {
  execsql {
    SELECT * FROM t5 ORDER BY 2;
  }
} {2 9 1 10}
do_test select1-4.10 {
  catchsql {
    SELECT * FROM t5 ORDER BY 3;
  }
} {1 {ORDER BY column number 3 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 test, 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 {
  execsql {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 {test1.f1 11 test1.f2 22}}
do_test select1-6.1.4 {
  set v [catch {execsql2 {SELECT DISTINCT * FROM test1 WHERE f1==11}} msg]
  execsql {PRAGMA full_column_names=off}
  lappend v $msg
} {0 {test1.f1 11 test1.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 {A.f1 11 t1 abc A.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 {
  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 {A.f1 11 B.f1 11 A.f1 11 B.f1 33 A.f1 33 B.f1 11 A.f1 33 B.f1 33}}
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 {f2 11 f2 22 f2 33 f2 44}}
do_test select1-6.11 {
  set v [catch {execsql2 {
    SELECT f1 FROM test1 UNION SELECT f2+100 FROM test1
    ORDER BY f2+100;
  }} msg]
  lappend v $msg
} {0 {f2+100 11 f2+100 33 f2+100 122 f2+100 144}}

do_test select1-7.1 {
  set v [catch {execsql {
     SELECT f1 FROM test1 WHERE f2=;
  }} msg]
  lappend v $msg
} {1 {near ";": syntax error}}
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}}
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 select1-8.1 {
  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}
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
#
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}
  set r(*) {}
  db eval {SELECT * FROM test1 WHERE f1<0} r {}
  set r(*)
} {f1 f2}
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}

# 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 {
  execsql2 {
    SELECT * FROM t3, t4;
  }
} {t3.a 1 t3.b 2 t4.a 3 t4.b 4}
do_test select1-11.3 {
  execsql2 {
    SELECT * FROM t3 AS x, t4 AS y;
  }
} {x.a 1 x.b 2 y.a 3 y.b 4}
do_test select1-11.4 {
  execsql {
    SELECT t3.*, t4.b FROM t3, t4;
  }
} {1 2 4}
do_test select1-11.5 {
  execsql2 {
    SELECT t3.*, t4.b FROM t3, t4;
  }
} {t3.a 1 t3.b 2 t4.b 4}
do_test select1-11.6 {
  execsql2 {
    SELECT x.*, y.b FROM t3 AS x, t4 AS y;
  }
} {x.a 1 x.b 2 y.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;
  }
} {t3.b 2 t4.a 3 t4.b 4}
do_test select1-11.9 {
  execsql2 {
    SELECT x.b, y.* FROM t3 AS x, t4 AS y;
  }
} {x.b 2 y.a 3 y.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}}
do_test select1-11.12 {
  execsql2 {
    SELECT t3.* FROM t3, (SELECT max(a), max(b) FROM t4)
  }
} {t3.a 1 t3.b 2}
do_test select1-11.13 {
  execsql2 {
    SELECT t3.* FROM (SELECT max(a), max(b) FROM t4), t3
  }
} {t3.a 1 t3.b 2}
do_test select1-11.14 {
  execsql2 {
    SELECT * FROM t3, (SELECT max(a), max(b) FROM t4) AS 'tx'
  }
} {t3.a 1 t3.b 2 tx.max(a) 3 tx.max(b) 4}
do_test select1-11.15 {
  execsql2 {
    SELECT y.*, t3.* FROM t3, (SELECT max(a), max(b) FROM t4) AS y
  }
} {y.max(a) 3 y.max(b) 4 t3.a 1 t3.b 2}
do_test select1-11.16 {
  execsql2 {
    SELECT y.* FROM t3 as y, t4 as z
  }
} {y.a 1 y.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);
    SELECT * FROM t3 UNION SELECT 3 AS 'a', 4 ORDER BY a;
  }
} {1 2 3 4}
do_test select1-12.5 {
  execsql {
    SELECT 3, 4 UNION SELECT * FROM t3;
  }
} {1 2 3 4}
do_test select1-12.6 {
  execsql {
    SELECT * FROM t3 WHERE a=(SELECT 1);
  }
} {1 2}
do_test select1-12.7 {
  execsql {
    SELECT * FROM t3 WHERE a=(SELECT 2);
  }
} {}
do_test select1-12.8 {
  execsql2 {
    SELECT x FROM (
      SELECT a,b FROM t3 UNION SELECT a AS 'x', b AS 'y' FROM t4 ORDER BY a,b
    ) ORDER BY x;
  }
} {x 1 x 3}
do_test select1-12.9 {
  execsql2 {
    SELECT z.x FROM (
      SELECT a,b FROM t3 UNION SELECT a AS 'x', b AS 'y' FROM t4 ORDER BY a,b
    ) AS 'z' ORDER BY x;
  }
} {z.x 1 z.x 3}


finish_test