Index: third_party/sqlite/src/test/selectF.test |
diff --git a/third_party/sqlite/src/test/selectF.test b/third_party/sqlite/src/test/selectF.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3fb226e012fd6fff70538f454c6bc866e890ec47 |
--- /dev/null |
+++ b/third_party/sqlite/src/test/selectF.test |
@@ -0,0 +1,49 @@ |
+# 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 |