1 files changed, 43 insertions, 0 deletions
diff --git a/src/test/isolation/specs/multiple-cic.spec b/src/test/isolation/specs/multiple-cic.spec
new file mode 100644
index 0000000..e34a6b0
--- /dev/null
+++ b/src/test/isolation/specs/multiple-cic.spec
@@ -0,0 +1,43 @@
+# Test multiple CREATE INDEX CONCURRENTLY working simultaneously
+
+setup
+{
+  CREATE TABLE mcic_one (
+	id int
+  );
+  CREATE TABLE mcic_two (
+	id int
+  );
+  CREATE FUNCTION lck_shr(bigint) RETURNS bool IMMUTABLE LANGUAGE plpgsql AS $$
+     BEGIN PERFORM pg_advisory_lock_shared($1); RETURN true; END;
+  $$;
+  CREATE FUNCTION unlck() RETURNS bool IMMUTABLE LANGUAGE plpgsql AS $$
+     BEGIN PERFORM pg_advisory_unlock_all(); RETURN true; END;
+  $$;
+}
+teardown
+{
+  DROP TABLE mcic_one, mcic_two;
+  DROP FUNCTION lck_shr(bigint);
+  DROP FUNCTION unlck();
+}
+
+session s1
+step s1i	{
+		CREATE INDEX CONCURRENTLY mcic_one_pkey ON mcic_one (id)
+		WHERE lck_shr(281457);
+	}
+teardown	{ SELECT unlck(); }
+
+
+session s2
+step s2l	{ SELECT pg_advisory_lock(281457); }
+step s2i	{
+		CREATE INDEX CONCURRENTLY mcic_two_pkey ON mcic_two (id)
+		WHERE unlck();
+	}
+
+# (*) marker ensures that s2i is reported as "waiting", even if it
+# completes very quickly
+
+permutation s2l s1i s2i(*)