add test case for DROP INDEX CONCURRENTLY

Author: funbringer

expected/pathman_calamity.out

@@ -1043,6 +1043,25 @@ SELECT context, entries FROM pathman_cache_stats ORDER BY context;	/* OK */
 
 DROP SCHEMA calamity CASCADE;
 DROP EXTENSION pg_pathman;
+/*
+ * -----------------------------------------------------------
+ *  Special tests (drop index concurrently to test snapshots)
+ * -----------------------------------------------------------
+ */
+CREATE SCHEMA calamity;
+CREATE EXTENSION pg_pathman;
+CREATE TABLE calamity.drop_index (val INT4 NOT NULL);
+CREATE INDEX ON calamity.drop_index (val);
+SELECT create_hash_partitions('calamity.drop_index', 'val', 2);
+ create_hash_partitions 
+------------------------
+                      2
+(1 row)
+
+DROP INDEX CONCURRENTLY calamity.drop_index_0_val_idx;
+DROP SCHEMA calamity CASCADE;
+NOTICE:  drop cascades to 3 other objects
+DROP EXTENSION pg_pathman;
 /*
  * ------------------------------------------
  *  Special tests (uninitialized pg_pathman)

sql/pathman_calamity.sql

@@ -422,6 +422,25 @@ DROP EXTENSION pg_pathman;
 
 
 
+/*
+ * -----------------------------------------------------------
+ *  Special tests (drop index concurrently to test snapshots)
+ * -----------------------------------------------------------
+ */
+
+CREATE SCHEMA calamity;
+CREATE EXTENSION pg_pathman;
+
+CREATE TABLE calamity.drop_index (val INT4 NOT NULL);
+CREATE INDEX ON calamity.drop_index (val);
+SELECT create_hash_partitions('calamity.drop_index', 'val', 2);
+DROP INDEX CONCURRENTLY calamity.drop_index_0_val_idx;
+
+DROP SCHEMA calamity CASCADE;
+DROP EXTENSION pg_pathman;
+
+
+
 /*
  * ------------------------------------------
  *  Special tests (uninitialized pg_pathman)