select1.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 SELECT statement.
#
# $Id: select1.test,v 1.53 2007/04/13 16:06:34 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}
} {44.0}
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()}}

# 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()}}

# 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 {ORDER BY column number 3 out of range - should be between 1 and 2}}
do_test select1-4.10.2 {
  catchsql {
    SELECT * FROM t5 ORDER BY -1;
  }
} {1 {ORDER BY column number -1 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 {
  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}