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Fixed sporadically failing test show_explain_json.test

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Code taken from MDEV-33423: show_analyze sporadically fails

Thanks to Sergei Petrunia for pointing this out.
This commit is contained in:
Monty
2024-03-04 16:03:42 +02:00
parent 611d442510
commit 11c75fc396
2 changed files with 16 additions and 4 deletions
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8
mysql-test/main/show_explain_json.result
View File

@ -518,9 +518,12 @@ SET debug_dbug=@old_debug;
# Try to do SHOW EXPLAIN for a query that runs a SET command: # Try to do SHOW EXPLAIN for a query that runs a SET command:
# I've found experimentally that select_id==2 here... # I've found experimentally that select_id==2 here...
# #
set @show_explain_probe_select_id=2; create table t2 (a int);
insert into t2 values (1),(2);
set @show_explain_probe_select_id=3;
SET debug_dbug='+d,show_explain_probe_join_exec_start'; SET debug_dbug='+d,show_explain_probe_join_exec_start';
set @foo= (select max(a) from t0 where sin(a) >0); set @foo= (select max(a) from t2
where a + (select max(a) from t0 where t0.a>t2.a) < 10000);
connection default; connection default;
show explain format=JSON for $thr2; show explain format=JSON for $thr2;
ERROR HY000: Target is not executing an operation with a query plan ERROR HY000: Target is not executing an operation with a query plan
@ -528,6 +531,7 @@ kill query $thr2;
connection con1; connection con1;
ERROR 70100: Query execution was interrupted ERROR 70100: Query execution was interrupted
SET debug_dbug=@old_debug; SET debug_dbug=@old_debug;
drop table t2;
# #
# Attempt SHOW EXPLAIN for an UPDATE # Attempt SHOW EXPLAIN for an UPDATE
# #

12
mysql-test/main/show_explain_json.test
View File

@ -271,9 +271,16 @@ SET debug_dbug=@old_debug;
--echo # Try to do SHOW EXPLAIN for a query that runs a SET command: --echo # Try to do SHOW EXPLAIN for a query that runs a SET command:
--echo # I've found experimentally that select_id==2 here... --echo # I've found experimentally that select_id==2 here...
--echo # --echo #
set @show_explain_probe_select_id=2;
create table t2 (a int);
insert into t2 values (1),(2);
set @show_explain_probe_select_id=3; # Stop in the subquery.
SET debug_dbug='+d,show_explain_probe_join_exec_start'; SET debug_dbug='+d,show_explain_probe_join_exec_start';
send set @foo= (select max(a) from t0 where sin(a) >0); # t2 has 2 rows so we will stop in the subquery twice:
# - first one to serve the SHOW ANALYZE request
# - second one when waiting to be KILLed.
send set @foo= (select max(a) from t2
where a + (select max(a) from t0 where t0.a>t2.a) < 10000);
connection default; connection default;
--source include/wait_condition.inc --source include/wait_condition.inc
--error ER_TARGET_NOT_EXPLAINABLE --error ER_TARGET_NOT_EXPLAINABLE
@ -283,6 +290,7 @@ connection con1;
--error ER_QUERY_INTERRUPTED --error ER_QUERY_INTERRUPTED
reap; reap;
SET debug_dbug=@old_debug; SET debug_dbug=@old_debug;
drop table t2;
--echo # --echo #
--echo # Attempt SHOW EXPLAIN for an UPDATE --echo # Attempt SHOW EXPLAIN for an UPDATE