Adding upstream version 15.4.upstream/15.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/test/isolation/specs/partial-index.spec b/src/test/isolation/specs/partial-index.spec
new file mode 100644
index 0000000..c033841
--- /dev/null
+++ b/src/test/isolation/specs/partial-index.spec
@@ -0,0 +1,32 @@
+# Partial Index test
+#
+# Make sure that an update which moves a row out of a partial index
+# is handled correctly.  In early versions, an attempt at optimization
+# broke this behavior, allowing anomalies.
+#
+# Any overlap between the transactions must cause a serialization failure.
+
+setup
+{
+ create table test_t (id integer, val1 text, val2 integer);
+ create index test_idx on test_t(id) where val2 = 1;
+ insert into test_t (select generate_series(0, 10000), 'a', 2);
+ insert into test_t (select generate_series(0, 10), 'a', 1);
+}
+
+teardown
+{
+ DROP TABLE test_t;
+}
+
+session s1
+setup		{ BEGIN ISOLATION LEVEL SERIALIZABLE; }
+step rxy1	{ select * from test_t where val2 = 1; }
+step wx1	{ update test_t set val2 = 2 where val2 = 1 and id = 10; }
+step c1		{ COMMIT; }
+
+session s2
+setup		{ BEGIN ISOLATION LEVEL SERIALIZABLE; }
+step wy2	{ update test_t set val2 = 2 where val2 = 1 and id = 9; }
+step rxy2	{ select * from test_t where val2 = 1; }
+step c2		{ COMMIT; }