insert.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.

# 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 INSERT statement.
#
# $Id: insert.test,v 1.31 2007/04/05 11:25:59 drh Exp $

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

# Try to insert into a non-existant table.
#
do_test insert-1.1 {
  set v [catch {execsql {INSERT INTO test1 VALUES(1,2,3)}} msg]
  lappend v $msg
} {1 {no such table: test1}}

# Try to insert into sqlite_master
#
do_test insert-1.2 {
  set v [catch {execsql {INSERT INTO sqlite_master VALUES(1,2,3,4)}} msg]
  lappend v $msg
} {1 {table sqlite_master may not be modified}}

# Try to insert the wrong number of entries.
#
do_test insert-1.3 {
  execsql {CREATE TABLE test1(one int, two int, three int)}
  set v [catch {execsql {INSERT INTO test1 VALUES(1,2)}} msg]
  lappend v $msg
} {1 {table test1 has 3 columns but 2 values were supplied}}
do_test insert-1.3b {
  set v [catch {execsql {INSERT INTO test1 VALUES(1,2,3,4)}} msg]
  lappend v $msg
} {1 {table test1 has 3 columns but 4 values were supplied}}
do_test insert-1.3c {
  set v [catch {execsql {INSERT INTO test1(one,two) VALUES(1,2,3,4)}} msg]
  lappend v $msg
} {1 {4 values for 2 columns}}
do_test insert-1.3d {
  set v [catch {execsql {INSERT INTO test1(one,two) VALUES(1)}} msg]
  lappend v $msg
} {1 {1 values for 2 columns}}

# Try to insert into a non-existant column of a table.
#
do_test insert-1.4 {
  set v [catch {execsql {INSERT INTO test1(one,four) VALUES(1,2)}} msg]
  lappend v $msg
} {1 {table test1 has no column named four}}

# Make sure the inserts actually happen
#
do_test insert-1.5 {
  execsql {INSERT INTO test1 VALUES(1,2,3)}
  execsql {SELECT * FROM test1}
} {1 2 3}
do_test insert-1.5b {
  execsql {INSERT INTO test1 VALUES(4,5,6)}
  execsql {SELECT * FROM test1 ORDER BY one}
} {1 2 3 4 5 6}
do_test insert-1.5c {
  execsql {INSERT INTO test1 VALUES(7,8,9)}
  execsql {SELECT * FROM test1 ORDER BY one}
} {1 2 3 4 5 6 7 8 9}

do_test insert-1.6 {
  execsql {DELETE FROM test1}
  execsql {INSERT INTO test1(one,two) VALUES(1,2)}
  execsql {SELECT * FROM test1 ORDER BY one}
} {1 2 {}}
do_test insert-1.6b {
  execsql {INSERT INTO test1(two,three) VALUES(5,6)}
  execsql {SELECT * FROM test1 ORDER BY one}
} {{} 5 6 1 2 {}}
do_test insert-1.6c {
  execsql {INSERT INTO test1(three,one) VALUES(7,8)}
  execsql {SELECT * FROM test1 ORDER BY one}
} {{} 5 6 1 2 {} 8 {} 7}

# A table to use for testing default values
#
do_test insert-2.1 {
  execsql {
    CREATE TABLE test2(
      f1 int default -111, 
      f2 real default +4.32,
      f3 int default +222,
      f4 int default 7.89
    )
  }
  execsql {SELECT * from test2}
} {}
do_test insert-2.2 {
  execsql {INSERT INTO test2(f1,f3) VALUES(+10,-10)}
  execsql {SELECT * FROM test2}
} {10 4.32 -10 7.89}
do_test insert-2.3 {
  execsql {INSERT INTO test2(f2,f4) VALUES(1.23,-3.45)}
  execsql {SELECT * FROM test2 WHERE f1==-111}
} {-111 1.23 222 -3.45}
do_test insert-2.4 {
  execsql {INSERT INTO test2(f1,f2,f4) VALUES(77,+1.23,3.45)}
  execsql {SELECT * FROM test2 WHERE f1==77}
} {77 1.23 222 3.45}
do_test insert-2.10 {
  execsql {
    DROP TABLE test2;
    CREATE TABLE test2(
      f1 int default 111, 
      f2 real default -4.32,
      f3 text default hi,
      f4 text default 'abc-123',
      f5 varchar(10)
    )
  }
  execsql {SELECT * from test2}
} {}
do_test insert-2.11 {
  execsql {INSERT INTO test2(f2,f4) VALUES(-2.22,'hi!')}
  execsql {SELECT * FROM test2}
} {111 -2.22 hi hi! {}}
do_test insert-2.12 {
  execsql {INSERT INTO test2(f1,f5) VALUES(1,'xyzzy')}
  execsql {SELECT * FROM test2 ORDER BY f1}
} {1 -4.32 hi abc-123 xyzzy 111 -2.22 hi hi! {}}

# Do additional inserts with default values, but this time
# on a table that has indices.  In particular we want to verify
# that the correct default values are inserted into the indices.
#
do_test insert-3.1 {
  execsql {
    DELETE FROM test2;
    CREATE INDEX index9 ON test2(f1,f2);
    CREATE INDEX indext ON test2(f4,f5);
    SELECT * from test2;
  }
} {}

# Update for sqlite3 v3:
# Change the 111 to '111' in the following two test cases, because
# the default value is being inserted as a string. TODO: It shouldn't be.
do_test insert-3.2 {
  execsql {INSERT INTO test2(f2,f4) VALUES(-3.33,'hum')}
  execsql {SELECT * FROM test2 WHERE f1='111' AND f2=-3.33}
} {111 -3.33 hi hum {}}
do_test insert-3.3 {
  execsql {INSERT INTO test2(f1,f2,f5) VALUES(22,-4.44,'wham')}
  execsql {SELECT * FROM test2 WHERE f1='111' AND f2=-3.33}
} {111 -3.33 hi hum {}}
do_test insert-3.4 {
  execsql {SELECT * FROM test2 WHERE f1=22 AND f2=-4.44}
} {22 -4.44 hi abc-123 wham}
ifcapable {reindex} {
  do_test insert-3.5 {
    execsql REINDEX
  } {}
}
integrity_check insert-3.5

# Test of expressions in the VALUES clause
#
do_test insert-4.1 {
  execsql {
    CREATE TABLE t3(a,b,c);
    INSERT INTO t3 VALUES(1+2+3,4,5);
    SELECT * FROM t3;
  }
} {6 4 5}
do_test insert-4.2 {
  ifcapable subquery {
    execsql {INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1,5,6);}
  } else {
    set maxa [execsql {SELECT max(a) FROM t3}]
    execsql "INSERT INTO t3 VALUES($maxa+1,5,6);"
  }
  execsql {
    SELECT * FROM t3 ORDER BY a;
  }
} {6 4 5 7 5 6}
ifcapable subquery {
  do_test insert-4.3 {
    catchsql {
      INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1,t3.a,6);
      SELECT * FROM t3 ORDER BY a;
    }
  } {1 {no such column: t3.a}}
}
do_test insert-4.4 {
  ifcapable subquery {
    execsql {INSERT INTO t3 VALUES((SELECT b FROM t3 WHERE a=0),6,7);}
  } else {
    set b [execsql {SELECT b FROM t3 WHERE a = 0}]
    if {$b==""} {set b NULL}
    execsql "INSERT INTO t3 VALUES($b,6,7);"
  }
  execsql {
    SELECT * FROM t3 ORDER BY a;
  }
} {{} 6 7 6 4 5 7 5 6}
do_test insert-4.5 {
  execsql {
    SELECT b,c FROM t3 WHERE a IS NULL;
  }
} {6 7}
do_test insert-4.6 {
  catchsql {
    INSERT INTO t3 VALUES(notafunc(2,3),2,3);
  }
} {1 {no such function: notafunc}}
do_test insert-4.7 {
  execsql {
    INSERT INTO t3 VALUES(min(1,2,3),max(1,2,3),99);
    SELECT * FROM t3 WHERE c=99;
  }
} {1 3 99}

# Test the ability to insert from a temporary table into itself.
# Ticket #275.
#
ifcapable tempdb {
  do_test insert-5.1 {
    execsql {
      CREATE TEMP TABLE t4(x);
      INSERT INTO t4 VALUES(1);
      SELECT * FROM t4;
    }
  } {1}
  do_test insert-5.2 {
    execsql {
      INSERT INTO t4 SELECT x+1 FROM t4;
      SELECT * FROM t4;
    }
  } {1 2}
  ifcapable {explain} {
    do_test insert-5.3 {
      # verify that a temporary table is used to copy t4 to t4
      set x [execsql {
        EXPLAIN INSERT INTO t4 SELECT x+2 FROM t4;
      }]
      expr {[lsearch $x OpenEphemeral]>0}
    } {1}
  }
  
  do_test insert-5.4 {
    # Verify that table "test1" begins on page 3.  This should be the same
    # page number used by "t4" above.
    #
    # Update for v3 - the first table now begins on page 2 of each file, not 3.
    execsql {
      SELECT rootpage FROM sqlite_master WHERE name='test1';
    }
  } [expr $AUTOVACUUM?3:2]
  do_test insert-5.5 {
    # Verify that "t4" begins on page 3.
    #
    # Update for v3 - the first table now begins on page 2 of each file, not 3.
    execsql {
      SELECT rootpage FROM sqlite_temp_master WHERE name='t4';
    }
  } {2}
  do_test insert-5.6 {
    # This should not use an intermediate temporary table.
    execsql {
      INSERT INTO t4 SELECT one FROM test1 WHERE three=7;
      SELECT * FROM t4
    }
  } {1 2 8}
  ifcapable {explain} {
    do_test insert-5.7 {
      # verify that no temporary table is used to copy test1 to t4
      set x [execsql {
        EXPLAIN INSERT INTO t4 SELECT one FROM test1;
      }]
      expr {[lsearch $x OpenTemp]>0}
    } {0}
  }
}

# Ticket #334:  REPLACE statement corrupting indices.
#
ifcapable conflict {
  # The REPLACE command is not available if SQLITE_OMIT_CONFLICT is 
  # defined at compilation time.
  do_test insert-6.1 {
    execsql {
      CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
      INSERT INTO t1 VALUES(1,2);
      INSERT INTO t1 VALUES(2,3);
      SELECT b FROM t1 WHERE b=2;
    }
  } {2}
  do_test insert-6.2 {
    execsql {
      REPLACE INTO t1 VALUES(1,4);
      SELECT b FROM t1 WHERE b=2;
    }
  } {}
  do_test insert-6.3 {
    execsql {
      UPDATE OR REPLACE t1 SET a=2 WHERE b=4;
      SELECT * FROM t1 WHERE b=4;
    }
  } {2 4}
  do_test insert-6.4 {
    execsql {
      SELECT * FROM t1 WHERE b=3;
    }
  } {}
  ifcapable {reindex} {
    do_test insert-6.5 {
      execsql REINDEX
    } {}
  }
  do_test insert-6.6 {
    execsql {
      DROP TABLE t1;
    }
  } {}
}

# Test that the special optimization for queries of the form 
# "SELECT max(x) FROM tbl" where there is an index on tbl(x) works with 
# INSERT statments.
do_test insert-7.1 {
  execsql {
    CREATE TABLE t1(a);
    INSERT INTO t1 VALUES(1);
    INSERT INTO t1 VALUES(2);
    CREATE INDEX i1 ON t1(a);
  }
} {}
do_test insert-7.2 {
  execsql {
    INSERT INTO t1 SELECT max(a) FROM t1;
  }
} {}
do_test insert-7.3 {
  execsql {
    SELECT a FROM t1;
  }
} {1 2 2}

# Ticket #1140:  Check for an infinite loop in the algorithm that tests
# to see if the right-hand side of an INSERT...SELECT references the left-hand
# side.
#
ifcapable subquery&&compound {
  do_test insert-8.1 {
    execsql {
      INSERT INTO t3 SELECT * FROM (SELECT * FROM t3 UNION ALL SELECT 1,2,3)
    }
  } {}
}

# Make sure the rowid cache in the VDBE is reset correctly when
# an explicit rowid is given.
#
do_test insert-9.1 {
  execsql {
    CREATE TABLE t5(x);
    INSERT INTO t5 VALUES(1);
    INSERT INTO t5 VALUES(2);
    INSERT INTO t5 VALUES(3);
    INSERT INTO t5(rowid, x) SELECT nullif(x*2+10,14), x+100 FROM t5;
    SELECT rowid, x FROM t5;
  }
} {1 1 2 2 3 3 12 101 13 102 16 103}
do_test insert-9.2 {
  execsql {
    CREATE TABLE t6(x INTEGER PRIMARY KEY, y);
    INSERT INTO t6 VALUES(1,1);
    INSERT INTO t6 VALUES(2,2);
    INSERT INTO t6 VALUES(3,3);
    INSERT INTO t6 SELECT nullif(y*2+10,14), y+100 FROM t6;
    SELECT x, y FROM t6;
  }
} {1 1 2 2 3 3 12 101 13 102 16 103}

integrity_check insert-99.0

finish_test