72 lines
1.9 KiB
Plaintext
72 lines
1.9 KiB
Plaintext
# 2012 April 19
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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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# The tests in this file were used while developing the SQLite 4 code.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix tkt-2a5629202f
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# This procedure executes the SQL. Then it checks to see if the OP_Sort
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# opcode was executed. If an OP_Sort did occur, then "sort" is appended
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# to the result. If no OP_Sort happened, then "nosort" is appended.
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#
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# This procedure is used to check to make sure sorting is or is not
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# occurring as expected.
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#
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proc cksort {sql} {
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set data [execsql $sql]
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if {[db status sort]} {set x sort} {set x nosort}
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lappend data $x
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return $data
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}
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do_execsql_test 1.1 {
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CREATE TABLE t8(b TEXT, c TEXT);
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INSERT INTO t8 VALUES('a', 'one');
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INSERT INTO t8 VALUES('b', 'two');
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INSERT INTO t8 VALUES(NULL, 'three');
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INSERT INTO t8 VALUES(NULL, 'four');
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}
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do_execsql_test 1.2 {
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SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
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} {null/four null/three a/one b/two}
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do_execsql_test 1.3 {
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CREATE UNIQUE INDEX i1 ON t8(b);
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SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
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} {null/four null/three a/one b/two}
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#-------------------------------------------------------------------------
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#
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do_execsql_test 2.1 {
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CREATE TABLE t2(a, b NOT NULL, c);
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CREATE UNIQUE INDEX t2ab ON t2(a, b);
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CREATE UNIQUE INDEX t2ba ON t2(b, a);
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}
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do_test 2.2 {
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cksort { SELECT * FROM t2 WHERE a = 10 ORDER BY a, b, c }
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} {nosort}
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do_test 2.3 {
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cksort { SELECT * FROM t2 WHERE b = 10 ORDER BY a, b, c }
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} {sort}
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do_test 2.4 {
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cksort { SELECT * FROM t2 WHERE a IS NULL ORDER BY a, b, c }
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} {sort}
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finish_test
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