1 files changed, 20 insertions, 0 deletions
diff --git a/contrib/pg_stat_statements/sql/wal.sql b/contrib/pg_stat_statements/sql/wal.sql
new file mode 100644
index 00000000000..34b21c0fa98
--- /dev/null
+++ b/contrib/pg_stat_statements/sql/wal.sql
@@ -0,0 +1,20 @@
+--
+-- Validate WAL generation metrics
+--
+
+SET pg_stat_statements.track_utility = FALSE;
+
+CREATE TABLE pgss_wal_tab (a int, b char(20));
+
+INSERT INTO pgss_wal_tab VALUES(generate_series(1, 10), 'aaa');
+UPDATE pgss_wal_tab SET b = 'bbb' WHERE a > 7;
+DELETE FROM pgss_wal_tab WHERE a > 9;
+DROP TABLE pgss_wal_tab;
+
+-- Check WAL is generated for the above statements
+SELECT query, calls, rows,
+wal_bytes > 0 as wal_bytes_generated,
+wal_records > 0 as wal_records_generated,
+wal_records >= rows as wal_records_ge_rows
+FROM pg_stat_statements ORDER BY query COLLATE "C";
+SELECT pg_stat_statements_reset();