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test/selectF.test
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drh
Change an OP_SCopy into an OP_Copy in a case where the destination might be
03 мар 2014, 21:36
03 мар 2014, 21:36
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# 2014-03-03 # # 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 verifies that an OP_Copy operation is used instead of OP_SCopy # in a compound select in a case where the source register might be changed # before the copy is used. # set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix selectF do_execsql_test 1 { BEGIN TRANSACTION; CREATE TABLE t1(a, b, c); INSERT INTO "t1" VALUES(1,'one','I'); CREATE TABLE t2(d, e, f); INSERT INTO "t2" VALUES(5,'ten','XX'); INSERT INTO "t2" VALUES(6,NULL,NULL); CREATE INDEX i1 ON t1(b, a); COMMIT; } #explain_i { # SELECT * FROM t2 # UNION ALL # SELECT * FROM t1 WHERE a<5 # ORDER BY 2, 1 #} do_execsql_test 2 { SELECT * FROM t2 UNION ALL SELECT * FROM t1 WHERE a<5 ORDER BY 2, 1 } {6 {} {} 1 one I 5 ten XX} finish_test