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Unified Diff: third_party/sqlite/src/test/select9.test

Issue 949043002: Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 10 months ago
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Index: third_party/sqlite/src/test/select9.test
diff --git a/third_party/sqlite/src/test/select9.test b/third_party/sqlite/src/test/select9.test
index 085dee0bd1e2991c5fb53feaf8be7d4a3885ccc6..4c42236dc873e30bd9e504bb4fb17d4447f49874 100644
--- a/third_party/sqlite/src/test/select9.test
+++ b/third_party/sqlite/src/test/select9.test
@@ -415,5 +415,58 @@ do_test select9-4.X {
}
} {}
+# Testing to make sure that queries involving a view of a compound select
+# are planned efficiently. This detects a problem reported on the mailing
+# list on 2012-04-26. See
+#
+# http://www.mail-archive.com/sqlite-users%40sqlite.org/msg69746.html
+#
+# For additional information.
+#
+do_test select9-5.1 {
+ db eval {
+ CREATE TABLE t51(x, y);
+ CREATE TABLE t52(x, y);
+ CREATE VIEW v5 as
+ SELECT x, y FROM t51
+ UNION ALL
+ SELECT x, y FROM t52;
+ CREATE INDEX t51x ON t51(x);
+ CREATE INDEX t52x ON t52(x);
+ EXPLAIN QUERY PLAN
+ SELECT * FROM v5 WHERE x='12345' ORDER BY y;
+ }
+} {~/SCAN TABLE/} ;# Uses indices with "*"
+do_test select9-5.2 {
+ db eval {
+ EXPLAIN QUERY PLAN
+ SELECT x, y FROM v5 WHERE x='12345' ORDER BY y;
+ }
+} {~/SCAN TABLE/} ;# Uses indices with "x, y"
+do_test select9-5.3 {
+ db eval {
+ EXPLAIN QUERY PLAN
+ SELECT x, y FROM v5 WHERE +x='12345' ORDER BY y;
+ }
+} {/SCAN TABLE/} ;# Full table scan if the "+x" prevents index usage.
+
+# 2013-07-09: Ticket [490a4b7235624298]:
+# "WHERE 0" on the first element of a UNION causes an assertion fault
+#
+do_execsql_test select9-6.1 {
+ CREATE TABLE t61(a);
+ CREATE TABLE t62(b);
+ INSERT INTO t61 VALUES(111);
+ INSERT INTO t62 VALUES(222);
+ SELECT a FROM t61 WHERE 0 UNION SELECT b FROM t62;
+} {222}
+do_execsql_test select9-6.2 {
+ SELECT a FROM t61 WHERE 0 UNION ALL SELECT b FROM t62;
+} {222}
+do_execsql_test select9-6.3 {
+ SELECT a FROM t61 UNION SELECT b FROM t62 WHERE 0;
+} {111}
+
+
finish_test
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