test/in.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 IN and BETWEEN operator.
#
# $Id: in.test,v 1.11 2004/01/15 03:30:25 drh Exp $

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

# Generate the test data we will need for the first squences of tests.
#
do_test in-1.0 {
  set fd [open data1.txt w]
  for {set i 1} {$i<=10} {incr i} {
    puts $fd "$i\t[expr {int(pow(2,$i))}]"
  }
  close $fd
  execsql {
    CREATE TABLE t1(a int, b int);
    COPY t1 FROM 'data1.txt';
  }
  file delete -force data1.txt
  execsql {SELECT count(*) FROM t1}
} {10}

# Do basic testing of BETWEEN.
#
do_test in-1.1 {
  execsql {SELECT a FROM t1 WHERE b BETWEEN 10 AND 50 ORDER BY a}
} {4 5}
do_test in-1.2 {
  execsql {SELECT a FROM t1 WHERE b NOT BETWEEN 10 AND 50 ORDER BY a}
} {1 2 3 6 7 8 9 10}
do_test in-1.3 {
  execsql {SELECT a FROM t1 WHERE b BETWEEN a AND a*5 ORDER BY a}
} {1 2 3 4}
do_test in-1.4 {
  execsql {SELECT a FROM t1 WHERE b NOT BETWEEN a AND a*5 ORDER BY a}
} {5 6 7 8 9 10}
do_test in-1.6 {
  execsql {SELECT a FROM t1 WHERE b BETWEEN a AND a*5 OR b=512 ORDER BY a}
} {1 2 3 4 9}
do_test in-1.7 {
  execsql {SELECT a+ 100*(a BETWEEN 1 and 3) FROM t1 ORDER BY b}
} {101 102 103 4 5 6 7 8 9 10}


# Testing of the IN operator using static lists on the right-hand side.
#
do_test in-2.1 {
  execsql {SELECT a FROM t1 WHERE b IN (8,12,16,24,32) ORDER BY a}
} {3 4 5}
do_test in-2.2 {
  execsql {SELECT a FROM t1 WHERE b NOT IN (8,12,16,24,32) ORDER BY a}
} {1 2 6 7 8 9 10}
do_test in-2.3 {
  execsql {SELECT a FROM t1 WHERE b IN (8,12,16,24,32) OR b=512 ORDER BY a}
} {3 4 5 9}
do_test in-2.4 {
  execsql {SELECT a FROM t1 WHERE b NOT IN (8,12,16,24,32) OR b=512 ORDER BY a}
} {1 2 6 7 8 9 10}
do_test in-2.5 {
  execsql {SELECT a+100*(b IN (8,16,24)) FROM t1 ORDER BY b}
} {1 2 103 104 5 6 7 8 9 10}

do_test in-2.6 {
  set v [catch {execsql {SELECT a FROM t1 WHERE b IN (b+10,20)}} msg]
  lappend v $msg
} {1 {right-hand side of IN operator must be constant}}
do_test in-2.7 {
  set v [catch {execsql {SELECT a FROM t1 WHERE b IN (max(5,10,b),20)}} msg]
  lappend v $msg
} {1 {right-hand side of IN operator must be constant}}
do_test in-2.8 {
  execsql {SELECT a FROM t1 WHERE b IN (8*2,64/2) ORDER BY b}
} {4 5}
do_test in-2.9 {
  set v [catch {execsql {SELECT a FROM t1 WHERE b IN (max(5,10),20)}} msg]
  lappend v $msg
} {1 {right-hand side of IN operator must be constant}}
do_test in-2.10 {
  set v [catch {execsql {SELECT a FROM t1 WHERE min(0,b IN (a,30))}} msg]
  lappend v $msg
} {1 {right-hand side of IN operator must be constant}}
do_test in-2.11 {
  set v [catch {execsql {SELECT a FROM t1 WHERE c IN (10,20)}} msg]
  lappend v $msg
} {1 {no such column: c}}

# Testing the IN operator where the right-hand side is a SELECT
#
do_test in-3.1 {
  execsql {
    SELECT a FROM t1
    WHERE b IN (SELECT b FROM t1 WHERE a<5)
    ORDER BY a
  }
} {1 2 3 4}
do_test in-3.2 {
  execsql {
    SELECT a FROM t1
    WHERE b IN (SELECT b FROM t1 WHERE a<5) OR b==512
    ORDER BY a
  }
} {1 2 3 4 9}
do_test in-3.3 {
  execsql {
    SELECT a + 100*(b IN (SELECT b FROM t1 WHERE a<5)) FROM t1 ORDER BY b
  }
} {101 102 103 104 5 6 7 8 9 10}

# Make sure the UPDATE and DELETE commands work with IN-SELECT
#
do_test in-4.1 {
  execsql {
    UPDATE t1 SET b=b*2 
    WHERE b IN (SELECT b FROM t1 WHERE a>8)
  }
  execsql {SELECT b FROM t1 ORDER BY b}
} {2 4 8 16 32 64 128 256 1024 2048}
do_test in-4.2 {
  execsql {
    DELETE FROM t1 WHERE b IN (SELECT b FROM t1 WHERE a>8)
  }
  execsql {SELECT a FROM t1 ORDER BY a}
} {1 2 3 4 5 6 7 8}
do_test in-4.3 {
  execsql {
    DELETE FROM t1 WHERE b NOT IN (SELECT b FROM t1 WHERE a>4)
  }
  execsql {SELECT a FROM t1 ORDER BY a}
} {5 6 7 8}

# Do an IN with a constant RHS but where the RHS has many, many
# elements.  We need to test that collisions in the hash table
# are resolved properly.
#
do_test in-5.1 {
  execsql {
    INSERT INTO t1 VALUES('hello', 'world');
    SELECT * FROM t1
    WHERE a IN (
       'Do','an','IN','with','a','constant','RHS','but','where','the',
       'has','many','elements','We','need','to','test','that',
       'collisions','hash','table','are','resolved','properly',
       'This','in-set','contains','thirty','one','entries','hello');
  }
} {hello world}

# Make sure the IN operator works with INTEGER PRIMARY KEY fields.
#
do_test in-6.1 {
  execsql {
    CREATE TABLE ta(a INTEGER PRIMARY KEY, b);
    INSERT INTO ta VALUES(1,1);
    INSERT INTO ta VALUES(2,2);
    INSERT INTO ta VALUES(3,3);
    INSERT INTO ta VALUES(4,4);
    INSERT INTO ta VALUES(6,6);
    INSERT INTO ta VALUES(8,8);
    INSERT INTO ta VALUES(10,
       'This is a key that is long enough to require a malloc in the VDBE');
    SELECT * FROM ta WHERE a<10;
  }
} {1 1 2 2 3 3 4 4 6 6 8 8}
do_test in-6.2 {
  execsql {
    CREATE TABLE tb(a INTEGER PRIMARY KEY, b);
    INSERT INTO tb VALUES(1,1);
    INSERT INTO tb VALUES(2,2);
    INSERT INTO tb VALUES(3,3);
    INSERT INTO tb VALUES(5,5);
    INSERT INTO tb VALUES(7,7);
    INSERT INTO tb VALUES(9,9);
    INSERT INTO tb VALUES(11,
       'This is a key that is long enough to require a malloc in the VDBE');
    SELECT * FROM tb WHERE a<10;
  }
} {1 1 2 2 3 3 5 5 7 7 9 9}
do_test in-6.3 {
  execsql {
    SELECT a FROM ta WHERE b IN (SELECT a FROM tb);
  }
} {1 2 3}
do_test in-6.4 {
  execsql {
    SELECT a FROM ta WHERE b NOT IN (SELECT a FROM tb);
  }
} {4 6 8 10}
do_test in-6.5 {
  execsql {
    SELECT a FROM ta WHERE b IN (SELECT b FROM tb);
  }
} {1 2 3 10}
do_test in-6.6 {
  execsql {
    SELECT a FROM ta WHERE b NOT IN (SELECT b FROM tb);
  }
} {4 6 8}
do_test in-6.7 {
  execsql {
    SELECT a FROM ta WHERE a IN (SELECT a FROM tb);
  }
} {1 2 3}
do_test in-6.8 {
  execsql {
    SELECT a FROM ta WHERE a NOT IN (SELECT a FROM tb);
  }
} {4 6 8 10}
do_test in-6.9 {
  execsql {
    SELECT a FROM ta WHERE a IN (SELECT b FROM tb);
  }
} {1 2 3}
do_test in-6.10 {
  execsql {
    SELECT a FROM ta WHERE a NOT IN (SELECT b FROM tb);
  }
} {4 6 8 10}

# Tests of IN operator against empty sets.  (Ticket #185)
#
do_test in-7.1 {
  execsql {
    SELECT a FROM t1 WHERE a IN ();
  }
} {}
do_test in-7.2 {
  execsql {
    SELECT a FROM t1 WHERE a IN (5);
  }
} {5}
do_test in-7.3 {
  execsql {
    SELECT a FROM t1 WHERE a NOT IN () ORDER BY a;
  }
} {5 6 7 8 hello}
do_test in-7.4 {
  execsql {
    SELECT a FROM t1 WHERE a IN (5) AND b IN ();
  }
} {}
do_test in-7.5 {
  execsql {
    SELECT a FROM t1 WHERE a IN (5) AND b NOT IN ();
  }
} {5}
do_test in-7.6 {
  execsql {
    SELECT a FROM ta WHERE a IN ();
  }
} {}
do_test in-7.7 {
  execsql {
    SELECT a FROM ta WHERE a NOT IN ();
  }
} {1 2 3 4 6 8 10}

do_test in-8.1 {
  execsql {
    SELECT b FROM t1 WHERE a IN ('hello','there')
  }
} {world}
do_test in-8.2 {
  execsql {
    SELECT b FROM t1 WHERE a IN ("hello",'there')
  }
} {world}

# Test constructs of the form:  expr IN tablename
#
do_test in-9.1 {
  execsql {
    CREATE TABLE t4 AS SELECT a FROM tb;
    SELECT * FROM t4;    
  }
} {1 2 3 5 7 9 11}
do_test in-9.2 {
  execsql {
    SELECT b FROM t1 WHERE a IN t4;
  }
} {32 128}
do_test in-9.3 {
  execsql {
    SELECT b FROM t1 WHERE a NOT IN t4;
  }
} {64 256 world}
do_test in-9.4 {
  catchsql {
    SELECT b FROM t1 WHERE a NOT IN tb;
  }
} {1 {only a single result allowed for a SELECT that is part of an expression}}

finish_test