288 lines
7.5 KiB
Plaintext
288 lines
7.5 KiB
Plaintext
# 2008 January 5
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# $Id: minmax3.test,v 1.5 2008/07/12 14:52:20 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Do not use a codec for tests in this file, as the database file is
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# manipulated directly using tcl scripts (using the [hexio_write] command).
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#
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do_not_use_codec
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# Do an SQL statement. Append the search count to the end of the result.
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#
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proc count sql {
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set ::sqlite_search_count 0
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return [concat [execsql $sql] $::sqlite_search_count]
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}
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# This procedure sets the value of the file-format in file 'test.db'
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# to $newval. Also, the schema cookie is incremented.
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#
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proc set_file_format {newval} {
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hexio_write test.db 44 [hexio_render_int32 $newval]
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set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
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incr schemacookie
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hexio_write test.db 40 [hexio_render_int32 $schemacookie]
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return {}
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}
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do_test minmax3-1.0 {
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execsql {
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CREATE TABLE t1(x, y, z);
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}
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db close
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set_file_format 4
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sqlite3 db test.db
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execsql {
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BEGIN;
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INSERT INTO t1 VALUES('1', 'I', 'one');
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INSERT INTO t1 VALUES('2', 'IV', 'four');
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INSERT INTO t1 VALUES('2', NULL, 'three');
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INSERT INTO t1 VALUES('2', 'II', 'two');
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INSERT INTO t1 VALUES('2', 'V', 'five');
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INSERT INTO t1 VALUES('3', 'VI', 'six');
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COMMIT;
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}
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} {}
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do_test minmax3-1.1.1 {
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# Linear scan.
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count { SELECT max(y) FROM t1 WHERE x = '2'; }
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} {V 5}
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do_test minmax3-1.1.2 {
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# Index optimizes the WHERE x='2' constraint.
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execsql { CREATE INDEX i1 ON t1(x) }
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count { SELECT max(y) FROM t1 WHERE x = '2'; }
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} {V 9}
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do_test minmax3-1.1.3 {
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# Index optimizes the WHERE x='2' constraint and the MAX(y).
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execsql { CREATE INDEX i2 ON t1(x,y) }
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count { SELECT max(y) FROM t1 WHERE x = '2'; }
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} {V 1}
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do_test minmax3-1.1.4 {
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# Index optimizes the WHERE x='2' constraint and the MAX(y).
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execsql { DROP INDEX i2 ; CREATE INDEX i2 ON t1(x, y DESC) }
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count { SELECT max(y) FROM t1 WHERE x = '2'; }
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} {V 1}
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do_test minmax3-1.1.5 {
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count { SELECT max(y) FROM t1 WHERE x = '2' AND y != 'V'; }
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} {IV 2}
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do_test minmax3-1.1.6 {
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count { SELECT max(y) FROM t1 WHERE x = '2' AND y < 'V'; }
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} {IV 1}
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do_test minmax3-1.1.6 {
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count { SELECT max(y) FROM t1 WHERE x = '2' AND z != 'five'; }
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} {IV 4}
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do_test minmax3-1.2.1 {
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# Linear scan of t1.
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execsql { DROP INDEX i1 ; DROP INDEX i2 }
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count { SELECT min(y) FROM t1 WHERE x = '2'; }
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} {II 5}
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do_test minmax3-1.2.2 {
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# Index i1 optimizes the WHERE x='2' constraint.
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execsql { CREATE INDEX i1 ON t1(x) }
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count { SELECT min(y) FROM t1 WHERE x = '2'; }
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} {II 9}
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do_test minmax3-1.2.3 {
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# Index i2 optimizes the WHERE x='2' constraint and the min(y).
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execsql { CREATE INDEX i2 ON t1(x,y) }
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count { SELECT min(y) FROM t1 WHERE x = '2'; }
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} {II 1}
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do_test minmax3-1.2.4 {
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# Index optimizes the WHERE x='2' constraint and the MAX(y).
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execsql { DROP INDEX i2 ; CREATE INDEX i2 ON t1(x, y DESC) }
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count { SELECT min(y) FROM t1 WHERE x = '2'; }
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} {II 1}
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do_test minmax3-1.3.1 {
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# Linear scan
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execsql { DROP INDEX i1 ; DROP INDEX i2 }
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count { SELECT min(y) FROM t1; }
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} {I 5}
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do_test minmax3-1.3.2 {
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# Index i1 optimizes the min(y)
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execsql { CREATE INDEX i1 ON t1(y) }
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count { SELECT min(y) FROM t1; }
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} {I 1}
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do_test minmax3-1.3.3 {
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# Index i1 optimizes the min(y)
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execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(y DESC) }
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count { SELECT min(y) FROM t1; }
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} {I 1}
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do_test minmax3-1.4.1 {
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# Linear scan
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execsql { DROP INDEX i1 }
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count { SELECT max(y) FROM t1; }
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} {VI 5}
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do_test minmax3-1.4.2 {
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# Index i1 optimizes the max(y)
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execsql { CREATE INDEX i1 ON t1(y) }
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count { SELECT max(y) FROM t1; }
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} {VI 0}
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do_test minmax3-1.4.3 {
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# Index i1 optimizes the max(y)
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execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(y DESC) }
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execsql { SELECT y from t1}
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count { SELECT max(y) FROM t1; }
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} {VI 0}
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do_test minmax3-1.4.4 {
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execsql { DROP INDEX i1 }
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} {}
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do_test minmax3-2.1 {
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execsql {
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CREATE TABLE t2(a, b);
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CREATE INDEX i3 ON t2(a, b);
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INSERT INTO t2 VALUES(1, NULL);
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INSERT INTO t2 VALUES(1, 1);
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INSERT INTO t2 VALUES(1, 2);
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INSERT INTO t2 VALUES(1, 3);
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INSERT INTO t2 VALUES(2, NULL);
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INSERT INTO t2 VALUES(2, 1);
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INSERT INTO t2 VALUES(2, 2);
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INSERT INTO t2 VALUES(2, 3);
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INSERT INTO t2 VALUES(3, 1);
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INSERT INTO t2 VALUES(3, 2);
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INSERT INTO t2 VALUES(3, 3);
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}
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} {}
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do_test minmax3-2.2 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1; }
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} {1}
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do_test minmax3-2.3 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>1; }
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} {2}
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do_test minmax3-2.4 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>-1; }
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} {1}
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do_test minmax3-2.5 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1; }
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} {1}
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do_test minmax3-2.6 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<2; }
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} {1}
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do_test minmax3-2.7 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<1; }
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} {{}}
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do_test minmax3-2.8 {
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execsql { SELECT min(b) FROM t2 WHERE a = 3 AND b<1; }
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} {{}}
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do_test minmax3-3.1 {
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execsql {
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DROP TABLE t2;
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CREATE TABLE t2(a, b);
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CREATE INDEX i3 ON t2(a, b DESC);
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INSERT INTO t2 VALUES(1, NULL);
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INSERT INTO t2 VALUES(1, 1);
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INSERT INTO t2 VALUES(1, 2);
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INSERT INTO t2 VALUES(1, 3);
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INSERT INTO t2 VALUES(2, NULL);
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INSERT INTO t2 VALUES(2, 1);
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INSERT INTO t2 VALUES(2, 2);
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INSERT INTO t2 VALUES(2, 3);
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INSERT INTO t2 VALUES(3, 1);
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INSERT INTO t2 VALUES(3, 2);
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INSERT INTO t2 VALUES(3, 3);
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}
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} {}
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do_test minmax3-3.2 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1; }
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} {1}
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do_test minmax3-3.3 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>1; }
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} {2}
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do_test minmax3-3.4 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>-1; }
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} {1}
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do_test minmax3-3.5 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1; }
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} {1}
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do_test minmax3-3.6 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<2; }
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} {1}
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do_test minmax3-3.7 {
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execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<1; }
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} {{}}
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do_test minmax3-3.8 {
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execsql { SELECT min(b) FROM t2 WHERE a = 3 AND b<1; }
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} {{}}
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do_test minmax3-4.1 {
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execsql {
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CREATE TABLE t4(x);
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INSERT INTO t4 VALUES('abc');
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INSERT INTO t4 VALUES('BCD');
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SELECT max(x) FROM t4;
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}
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} {abc}
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do_test minmax3-4.2 {
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execsql {
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SELECT max(x COLLATE nocase) FROM t4;
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}
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} {BCD}
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do_test minmax3-4.3 {
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execsql {
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SELECT max(x), max(x COLLATE nocase) FROM t4;
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}
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} {abc BCD}
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do_test minmax3-4.4 {
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execsql {
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SELECT max(x COLLATE binary), max(x COLLATE nocase) FROM t4;
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}
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} {abc BCD}
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do_test minmax3-4.5 {
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execsql {
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SELECT max(x COLLATE nocase), max(x COLLATE rtrim) FROM t4;
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}
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} {BCD abc}
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do_test minmax3-4.6 {
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execsql {
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SELECT max(x COLLATE nocase), max(x) FROM t4;
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}
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} {BCD abc}
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do_test minmax3-4.10 {
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execsql {
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SELECT min(x) FROM t4;
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}
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} {BCD}
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do_test minmax3-4.11 {
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execsql {
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SELECT min(x COLLATE nocase) FROM t4;
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}
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} {abc}
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do_test minmax3-4.12 {
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execsql {
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SELECT min(x), min(x COLLATE nocase) FROM t4;
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}
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} {BCD abc}
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do_test minmax3-4.13 {
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execsql {
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SELECT min(x COLLATE binary), min(x COLLATE nocase) FROM t4;
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}
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} {BCD abc}
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do_test minmax3-4.14 {
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execsql {
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SELECT min(x COLLATE nocase), min(x COLLATE rtrim) FROM t4;
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}
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} {abc BCD}
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do_test minmax3-4.15 {
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execsql {
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SELECT min(x COLLATE nocase), min(x) FROM t4;
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}
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} {abc BCD}
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finish_test
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