Try to stabilize main.innodb_ext_key,off

Thanks to Varun Gupta for suggesting this. This seems to
make main.innodb_ext_key,off more stable.
This commit is contained in:
Marko Mäkelä 2020-10-30 13:18:41 +02:00
parent cb253b8687
commit 5b3be9e1c6
3 changed files with 8 additions and 5 deletions

View File

@ -1,3 +1,5 @@
--- innodb_ext_key.result
+++ innodb_ext_key,off.result
@@ -9,7 +9,7 @@
explain
select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01';

View File

@ -26,12 +26,12 @@ Handler_read_rnd 0
Handler_read_rnd_deleted 0
Handler_read_rnd_next 0
explain
select count(*) from lineitem
select count(*) from lineitem use index(primary)
where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE lineitem const PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY 8 const,const 1
1 SIMPLE lineitem const PRIMARY PRIMARY 8 const,const 1
flush status;
select count(*) from lineitem
select count(*) from lineitem use index(primary)
where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01';
count(*)
1

View File

@ -17,6 +17,7 @@ use dbt3_s001;
--disable_result_log
--disable_warnings
--source include/dbt3_s001.inc
ANALYZE TABLE lineitem PERSISTENT FOR COLUMNS() INDEXES();
--enable_warnings
--enable_result_log
--enable_query_log
@ -28,10 +29,10 @@ select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01';
show status like 'handler_read%';
explain
select count(*) from lineitem
select count(*) from lineitem use index(primary)
where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01';
flush status;
select count(*) from lineitem
select count(*) from lineitem use index(primary)
where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01';
show status like 'handler_read%';