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MWL#182: Explain running statements: address review feedback

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- switch SHOW EXPLAIN to using an INFORMATION_SCHEMA table.
This commit is contained in:
Sergey Petrunya
2012-07-10 21:23:00 +04:00
parent a931467e17
commit 725d76e1e8
11 changed files with 118 additions and 175 deletions
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7
mysql-test/r/show_explain.result
View File

@ -798,7 +798,7 @@ pk data
20 data1
set autocommit=0;
select * from t1 where pk between 10 and 20 for update;
show explain for 3;
# do: send_eval show explain for 3;
kill query $thr_default;
ERROR 70100: Query execution was interrupted
rollback;
@ -816,3 +816,8 @@ pk data
20 data1
drop table t1;
drop table t0;
#
# Check that the I_S table is invisible
#
select table_name from information_schema.tables where table_schema='information_schema' and table_name like '%explain%';
table_name

9
mysql-test/t/show_explain.test
View File

@ -818,7 +818,10 @@ connection default;
let $wait_condition= select State='Sending data' from information_schema.processlist where id=$thr2;
let $thr_default=`select connection_id()`;
--source include/wait_condition.inc
--echo # do: send_eval show explain for $thr2;
--disable_query_log
send_eval show explain for $thr2;
--enable_query_log
# kill the SHOW EXPLAIN command
connection con3;
@ -844,3 +847,9 @@ disconnect con2;
## thread and served together.
drop table t0;
--echo #
--echo # Check that the I_S table is invisible
--echo #
select table_name from information_schema.tables where table_schema='information_schema' and table_name like '%explain%';