misc3.test

sqlite-3.4.1,嵌入式数据库.是一个功能强大的开源数据库,给学习和研发以及小型公司的发展带来了全所未有的好处.

# 2003 December 17
#
# 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.
#
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc3.test,v 1.16 2005/01/21 03:12:16 danielk1977 Exp $

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

ifcapable {integrityck} {
  # Ticket #529.  Make sure an ABORT does not damage the in-memory cache
  # that will be used by subsequent statements in the same transaction.
  #
  do_test misc3-1.1 {
    execsql {
      CREATE TABLE t1(a UNIQUE,b);
      INSERT INTO t1
        VALUES(1,'a23456789_b23456789_c23456789_d23456789_e23456789_');
      UPDATE t1 SET b=b||b;
      UPDATE t1 SET b=b||b;
      UPDATE t1 SET b=b||b;
      UPDATE t1 SET b=b||b;
      UPDATE t1 SET b=b||b;
      INSERT INTO t1 VALUES(2,'x');
      UPDATE t1 SET b=substr(b,1,500);
      BEGIN;
    }
    catchsql {UPDATE t1 SET a=CASE a WHEN 2 THEN 1 ELSE a END, b='y';}
    execsql {
      CREATE TABLE t2(x,y);
      COMMIT;
      PRAGMA integrity_check;
    }
  } ok
}
ifcapable {integrityck} {
  do_test misc3-1.2 {
    execsql {
      DROP TABLE t1;
      DROP TABLE t2;
    }
    ifcapable {vacuum} {execsql VACUUM}
    execsql {
      CREATE TABLE t1(a UNIQUE,b);
      INSERT INTO t1
      VALUES(1,'a23456789_b23456789_c23456789_d23456789_e23456789_');
      INSERT INTO t1 SELECT a+1, b||b FROM t1;
      INSERT INTO t1 SELECT a+2, b||b FROM t1;
      INSERT INTO t1 SELECT a+4, b FROM t1;
      INSERT INTO t1 SELECT a+8, b FROM t1;
      INSERT INTO t1 SELECT a+16, b FROM t1;
      INSERT INTO t1 SELECT a+32, b FROM t1;
      INSERT INTO t1 SELECT a+64, b FROM t1;
      BEGIN;
    }
    catchsql {UPDATE t1 SET a=CASE a WHEN 128 THEN 127 ELSE a END, b='';}
    execsql {
      INSERT INTO t1 VALUES(200,'hello out there');
      COMMIT;
      PRAGMA integrity_check;
    }
  } ok
}

# Tests of the sqliteAtoF() function in util.c
#
do_test misc3-2.1 {
  execsql {SELECT 2e-25*0.5e25}
} 1.0
do_test misc3-2.2 {
  execsql {SELECT 2.0e-25*000000.500000000000000000000000000000e+00025}
} 1.0
do_test misc3-2.3 {
  execsql {SELECT 000000000002e-0000000025*0.5e25}
} 1.0
do_test misc3-2.4 {
  execsql {SELECT 2e-25*0.5e250}
} 1e+225
do_test misc3-2.5 {
  execsql {SELECT 2.0e-250*0.5e25}
} 1e-225
do_test misc3-2.6 {
  execsql {SELECT '-2.0e-127' * '-0.5e27'}
} 1e-100
do_test misc3-2.7 {
  execsql {SELECT '+2.0e-127' * '-0.5e27'}
} -1e-100
do_test misc3-2.8 {
  execsql {SELECT 2.0e-27 * '+0.5e+127'}
} 1e+100
do_test misc3-2.9 {
  execsql {SELECT 2.0e-27 * '+0.000005e+132'}
} 1e+100

# Ticket #522.  Make sure integer overflow is handled properly in
# indices.
#
integrity_check misc3-3.1
do_test misc3-3.2 {
  execsql {
    CREATE TABLE t2(a INT UNIQUE);
  }
} {}
integrity_check misc3-3.2.1
do_test misc3-3.3 {
  execsql {
    INSERT INTO t2 VALUES(2147483648);
  }
} {}
integrity_check misc3-3.3.1
do_test misc3-3.4 {
  execsql {
    INSERT INTO t2 VALUES(-2147483649);
  }
} {}
integrity_check misc3-3.4.1
do_test misc3-3.5 {
  execsql {
    INSERT INTO t2 VALUES([phone]);
  }
} {}
integrity_check misc3-3.5.1
do_test misc3-3.6 {
  execsql {
    INSERT INTO t2 VALUES([phone]);
    INSERT INTO t2 VALUES(-2147483648);
    INSERT INTO t2 VALUES(-2147483647);
    INSERT INTO t2 VALUES(2147483646);
    SELECT * FROM t2 ORDER BY a;
  }
} {-2147483649 -2147483648 -2147483647 2147483646 2147483647 2147483648 2147483649}
do_test misc3-3.7 {
  execsql {
    SELECT * FROM t2 WHERE a>=-2147483648 ORDER BY a;
  }
} {-2147483648 -2147483647 2147483646 2147483647 2147483648 2147483649}
do_test misc3-3.8 {
  execsql {
    SELECT * FROM t2 WHERE a>-2147483648 ORDER BY a;
  }
} {-2147483647 2147483646 2147483647 2147483648 2147483649}
do_test misc3-3.9 {
  execsql {
    SELECT * FROM t2 WHERE a>-2147483649 ORDER BY a;
  }
} {-2147483648 -2147483647 2147483646 2147483647 2147483648 2147483649}
do_test misc3-3.10 {
  execsql {
    SELECT * FROM t2 WHERE a>=0 AND a<2147483649 ORDER BY a DESC;
  }
} {2147483648 2147483647 2147483646}
do_test misc3-3.11 {
  execsql {
    SELECT * FROM t2 WHERE a>=0 AND a<=2147483648 ORDER BY a DESC;
  }
} {2147483648 2147483647 2147483646}
do_test misc3-3.12 {
  execsql {
    SELECT * FROM t2 WHERE a>=0 AND a<2147483648 ORDER BY a DESC;
  }
} {2147483647 2147483646}
do_test misc3-3.13 {
  execsql {
    SELECT * FROM t2 WHERE a>=0 AND a<=2147483647 ORDER BY a DESC;
  }
} {2147483647 2147483646}
do_test misc3-3.14 {
  execsql {
    SELECT * FROM t2 WHERE a>=0 AND a<2147483647 ORDER BY a DESC;
  }
} {2147483646}

# Ticket #565.  A stack overflow is occurring when the subquery to the
# right of an IN operator contains many NULLs
#
do_test misc3-4.1 {
  execsql {
    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
    INSERT INTO t3(b) VALUES('abc');
    INSERT INTO t3(b) VALUES('xyz');
    INSERT INTO t3(b) VALUES(NULL);
    INSERT INTO t3(b) VALUES(NULL);
    INSERT INTO t3(b) SELECT b||'d' FROM t3;
    INSERT INTO t3(b) SELECT b||'e' FROM t3;
    INSERT INTO t3(b) SELECT b||'f' FROM t3;
    INSERT INTO t3(b) SELECT b||'g' FROM t3;
    INSERT INTO t3(b) SELECT b||'h' FROM t3;
    SELECT count(a), count(b) FROM t3;
  }
} {128 64}
ifcapable subquery {
do_test misc3-4.2 {
    execsql {
      SELECT count(a) FROM t3 WHERE b IN (SELECT b FROM t3);
    }
  } {64}
  do_test misc3-4.3 {
    execsql {
      SELECT count(a) FROM t3 WHERE b IN (SELECT b FROM t3 ORDER BY a+1);
    }
  } {64}
}

# Ticket #601:  Putting a left join inside "SELECT * FROM (<join-here>)"
# gives different results that if the outer "SELECT * FROM ..." is omitted.
#
ifcapable subquery {
  do_test misc3-5.1 {
    execsql {
      CREATE TABLE x1 (b, c);
      INSERT INTO x1 VALUES('dog',3);
      INSERT INTO x1 VALUES('cat',1);
      INSERT INTO x1 VALUES('dog',4);
      CREATE TABLE x2 (c, e);
      INSERT INTO x2 VALUES(1,'one');
      INSERT INTO x2 VALUES(2,'two');
      INSERT INTO x2 VALUES(3,'three');
      INSERT INTO x2 VALUES(4,'four');
      SELECT x2.c AS c, e, b FROM x2 LEFT JOIN
         (SELECT b, max(c)+0 AS c FROM x1 GROUP BY b)
         USING(c);
    }
  } {1 one cat 2 two {} 3 three {} 4 four dog}
  do_test misc3-5.2 {
    execsql {
      SELECT * FROM (
        SELECT x2.c AS c, e, b FROM x2 LEFT JOIN
           (SELECT b, max(c)+0 AS c FROM x1 GROUP BY b)
           USING(c)
      );
    }
  } {1 one cat 2 two {} 3 three {} 4 four dog}
}

ifcapable {explain} {
  # Ticket #626:  make sure EXPLAIN prevents BEGIN and COMMIT from working.
  #
  do_test misc3-6.1 {
    execsql {EXPLAIN BEGIN}
    catchsql {BEGIN}
  } {0 {}}
  do_test misc3-6.2 {
    execsql {EXPLAIN COMMIT}
    catchsql {COMMIT}
  } {0 {}}
  do_test misc3-6.3 {
    execsql {BEGIN; EXPLAIN ROLLBACK}
    catchsql {ROLLBACK}
  } {0 {}}
}

ifcapable {trigger} {
# Ticket #640:  vdbe stack overflow with a LIMIT clause on a SELECT inside
# of a trigger.
#
do_test misc3-7.1 {
  execsql {
    BEGIN;
    CREATE TABLE y1(a);
    CREATE TABLE y2(b);
    CREATE TABLE y3(c);
    CREATE TRIGGER r1 AFTER DELETE ON y1 FOR EACH ROW BEGIN
      INSERT INTO y3(c) SELECT b FROM y2 ORDER BY b LIMIT 1;
    END;
    INSERT INTO y1 VALUES(1);
    INSERT INTO y1 VALUES(2);
    INSERT INTO y1 SELECT a+2 FROM y1;
    INSERT INTO y1 SELECT a+4 FROM y1;
    INSERT INTO y1 SELECT a+8 FROM y1;
    INSERT INTO y1 SELECT a+16 FROM y1;
    INSERT INTO y2 SELECT a FROM y1;
    COMMIT;
    SELECT count(*) FROM y1;
  }
} 32
do_test misc3-7.2 {
  execsql {
    DELETE FROM y1;
    SELECT count(*) FROM y1;
  }
} 0
do_test misc3-7.3 {
  execsql {
    SELECT count(*) FROM y3;
  }
} 32
} ;# endif trigger

# Ticket #668:  VDBE stack overflow occurs when the left-hand side
# of an IN expression is NULL and the result is used as an integer, not
# as a jump.
#
ifcapable subquery {
  do_test misc-8.1 {
    execsql {
      SELECT count(CASE WHEN b IN ('abc','xyz') THEN 'x' END) FROM t3
    }
  } {2}
  do_test misc-8.2 {
    execsql {
      SELECT count(*) FROM t3 WHERE 1+(b IN ('abc','xyz'))==2
    }
  } {2}
}

finish_test