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| 1 # 2014-03-03 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # | |
| 12 # This file verifies that an OP_Copy operation is used instead of OP_SCopy | |
| 13 # in a compound select in a case where the source register might be changed | |
| 14 # before the copy is used. | |
| 15 # | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 set testprefix selectF | |
| 20 | |
| 21 do_execsql_test 1 { | |
| 22 BEGIN TRANSACTION; | |
| 23 CREATE TABLE t1(a, b, c); | |
| 24 INSERT INTO "t1" VALUES(1,'one','I'); | |
| 25 CREATE TABLE t2(d, e, f); | |
| 26 INSERT INTO "t2" VALUES(5,'ten','XX'); | |
| 27 INSERT INTO "t2" VALUES(6,NULL,NULL); | |
| 28 | |
| 29 CREATE INDEX i1 ON t1(b, a); | |
| 30 COMMIT; | |
| 31 } | |
| 32 | |
| 33 #explain_i { | |
| 34 # SELECT * FROM t2 | |
| 35 # UNION ALL | |
| 36 # SELECT * FROM t1 WHERE a<5 | |
| 37 # ORDER BY 2, 1 | |
| 38 #} | |
| 39 | |
| 40 do_execsql_test 2 { | |
| 41 SELECT * FROM t2 | |
| 42 UNION ALL | |
| 43 SELECT * FROM t1 WHERE a<5 | |
| 44 ORDER BY 2, 1 | |
| 45 } {6 {} {} 1 one I 5 ten XX} | |
| 46 | |
| 47 | |
| 48 | |
| 49 finish_test | |
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