1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/regress/sql/func_index.sql b/src/test/regress/sql/func_index.sql
new file mode 100644
index 00000000000..b08f7544fc5
--- /dev/null
+++ b/src/test/regress/sql/func_index.sql
@@ -0,0 +1,30 @@
+create table keyvalue(id integer primary key, info jsonb);
+create index nameindex on keyvalue((info->>'name')) with (recheck_on_update=false);
+insert into keyvalue values (1, '{"name": "john", "data": "some data"}');
+update keyvalue set info='{"name": "john", "data": "some other data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+drop table keyvalue;
+
+create table keyvalue(id integer primary key, info jsonb);
+create index nameindex on keyvalue((info->>'name')) with (recheck_on_update=true);
+insert into keyvalue values (1, '{"name": "john", "data": "some data"}');
+update keyvalue set info='{"name": "john", "data": "some other data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+update keyvalue set info='{"name": "smith", "data": "some other data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+update keyvalue set info='{"name": "smith", "data": "some more data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+drop table keyvalue;
+
+create table keyvalue(id integer primary key, info jsonb);
+create index nameindex on keyvalue((info->>'name'));
+insert into keyvalue values (1, '{"name": "john", "data": "some data"}');
+update keyvalue set info='{"name": "john", "data": "some other data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+update keyvalue set info='{"name": "smith", "data": "some other data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+update keyvalue set info='{"name": "smith", "data": "some more data"}' where id=1;
+select pg_stat_get_xact_tuples_hot_updated('keyvalue'::regclass);
+drop table keyvalue;
+
+