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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

@ -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