50 lines
1.1 KiB
Plaintext
50 lines
1.1 KiB
Plaintext
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# 2014-03-03
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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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#
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# This file verifies that an OP_Copy operation is used instead of OP_SCopy
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# in a compound select in a case where the source register might be changed
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# before the copy is used.
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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 selectF
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do_execsql_test 1 {
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BEGIN TRANSACTION;
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CREATE TABLE t1(a, b, c);
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INSERT INTO "t1" VALUES(1,'one','I');
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CREATE TABLE t2(d, e, f);
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INSERT INTO "t2" VALUES(5,'ten','XX');
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INSERT INTO "t2" VALUES(6,NULL,NULL);
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CREATE INDEX i1 ON t1(b, a);
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COMMIT;
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}
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#explain_i {
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# SELECT * FROM t2
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# UNION ALL
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# SELECT * FROM t1 WHERE a<5
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# ORDER BY 2, 1
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#}
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do_execsql_test 2 {
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SELECT * FROM t2
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UNION ALL
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SELECT * FROM t1 WHERE a<5
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ORDER BY 2, 1
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} {6 {} {} 1 one I 5 ten XX}
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finish_test
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