diff options
Diffstat (limited to 'contrib/pg_stat_statements/sql/max.sql')
-rw-r--r-- | contrib/pg_stat_statements/sql/max.sql | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/contrib/pg_stat_statements/sql/max.sql b/contrib/pg_stat_statements/sql/max.sql deleted file mode 100644 index 155eec789a3..00000000000 --- a/contrib/pg_stat_statements/sql/max.sql +++ /dev/null @@ -1,61 +0,0 @@ --- --- Test deallocation of entries --- - -SHOW pg_stat_statements.max; - -SET pg_stat_statements.track = 'all'; - --- Create 101 tables. -DO $$ -BEGIN - FOR i IN 1..101 LOOP - EXECUTE format('create table t%s (a int)', lpad(i::text, 3, '0')); - END LOOP; -END -$$; - -SELECT pg_stat_statements_reset() IS NOT NULL AS t; - --- Run 98 queries. -DO $$ -BEGIN - FOR i IN 1..98 LOOP - EXECUTE format('select * from t%s', lpad(i::text, 3, '0')); - END LOOP; -END -$$; - --- All 98 queries should be registered. We just check the first and --- last to keep the output small. -SELECT query FROM pg_stat_statements WHERE query LIKE '%t001%' OR query LIKE '%t098%' ORDER BY query; - --- Query tables 2 through 98 again, so they have a higher calls count. --- Table 1 still has previous calls count. -DO $$ -BEGIN - FOR i IN 2..98 LOOP - EXECUTE format('select * from t%s', lpad(i::text, 3, '0')); - END LOOP; -END -$$; - --- Run 3 more queries. This will exceed the max and will cause the --- least used query to be deallocated. (The queries for --- pg_stat_statements themselves will also register, so fewer than 3 --- queries will also cause overflow, but let's keep this scenario --- self-contained.) -DO $$ -BEGIN - FOR i IN 99..101 LOOP - EXECUTE format('select * from t%s', lpad(i::text, 3, '0')); - END LOOP; -END -$$; - --- Check that the limit was kept. -SELECT count(*) <= 100 FROM pg_stat_statements; --- Check that record for t001 has been deallocated. -SELECT query FROM pg_stat_statements WHERE query LIKE '%t001%' ORDER BY query; --- Check deallocation count. -SELECT dealloc > 0 AS t FROM pg_stat_statements_info; |