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MDEV-39013: Fix flaky main.tmp_space_usage test #4765

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MDEV-39013: Fix flaky main.tmp_space_usage test #4765

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2 changes: 2 additions & 0 deletions mysql-test/main/tmp_space_usage.result
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,8 @@ create table t1 (a int primary key, v varchar(256), c int default(0)) engine=inn
create table t2 (a int primary key, v varchar(256), c int default(0)) engine=innodb;
begin;
insert into t1 (a,v) select seq, repeat(char(64+mod(seq,32)),mod(seq,254)+1) from seq_1_to_3000;
set @@tmp_memory_table_size=1024*1024;
set @@tmp_memory_table_size=0;
connection c1;
# information_schema.process_list.tmp_space_used == status.tmp_space_used
insert into t2 (a,v) select seq, repeat(char(64+mod(seq,32)),mod(seq,254)+1) from seq_1_to_3000;
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4 changes: 4 additions & 0 deletions mysql-test/main/tmp_space_usage.test
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Expand Up @@ -102,7 +102,11 @@ begin;
insert into t1 (a,v) select seq, repeat(char(64+mod(seq,32)),mod(seq,254)+1) from seq_1_to_3000;

let $id=`select connection_id()`;
# Use memory for the session_status query's internal temp table so it
# does not change tmp_space_used as a side effect of reading it.
set @@tmp_memory_table_size=1024*1024;
let $tmp_usage1=`select variable_value from information_schema.session_status where variable_name="tmp_space_used"`;
set @@tmp_memory_table_size=0;

connection c1;
--disable_query_log
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