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MDEV-31003: Second execution for ps-protocol

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This patch adds for "--ps-protocol" second execution
of queries "SELECT".
Also in this patch it is added ability to disable/enable
(--disable_ps2_protocol/--enable_ps2_protocol) second
execution for "--ps-prototocol" in testcases.
This commit is contained in:
Lena Startseva
2023-05-31 11:57:45 +07:00
parent 23dae6173c
commit 9854fb6fa7
400 changed files with 1339 additions and 42 deletions
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10
mysql-test/main/subselect3.inc
View File

@ -57,7 +57,9 @@ select a, oref, a in (
create table t3 (a int);
insert into t3 values (NULL), (NULL);
flush status;
--disable_ps2_protocol
select a in (select max(ie) from t1 where oref=4 group by grp) from t3;
--enable_ps2_protocol
show status like 'Handler_read_rnd_next';
select ' ^ This must show 11' Z;
@ -92,6 +94,7 @@ select oref, a, a in (select a from t1 where oref=t2.oref) Z from t2;
explain extended
select oref, a, a in (select a from t1 where oref=t2.oref) Z from t2;
--disable_ps2_protocol
flush status;
select oref, a from t2 where a in (select a from t1 where oref=t2.oref);
# This will only show access to t2:
@ -107,6 +110,7 @@ select oref, a, a in (select a from t1 where oref=t2.oref) Z from t2;
show status like '%Handler_read%';
select 'No key lookups, seq reads: 29= 5 reads from t2 + 4 * 6 reads from t1.' Z;
set @@optimizer_switch=@save_optimizer_switch;
--enable_ps2_protocol
drop table t1, t2;
@ -637,7 +641,9 @@ DROP TABLE t1, t2;
create table t1 (a int, b decimal(13, 3));
insert into t1 values (1, 0.123);
--disable_ps2_protocol
select a, (select max(b) from t1) into outfile "subselect.out.file.1" from t1;
--enable_ps2_protocol
delete from t1;
load data infile "subselect.out.file.1" into table t1;
select * from t1;
@ -805,6 +811,7 @@ FLUSH STATUS;
set @save_optimizer_switch2=@@optimizer_switch;
set optimizer_switch='subquery_cache=off';
--disable_ps2_protocol
--echo
SELECT i1, i2
FROM t1
@ -831,6 +838,7 @@ WHERE (i1, i2)
--echo # Handler_read_rnd_next should be one more than baseline
--echo # (read record from t1, but do not read from t2)
SHOW STATUS LIKE '%Handler_read_rnd_next';
--enable_ps2_protocol
set @@optimizer_switch=@save_optimizer_switch2;
DROP TABLE t1,t2;
@ -969,7 +977,9 @@ set @@max_heap_table_size= 16384;
explain select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E where a+1 < 10000 + A.a + B.a +C.a+D.a);
flush status;
--disable_ps2_protocol
select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E where a+1 < 10000 + A.a + B.a +C.a+D.a);
--enable_ps2_protocol
show status like 'Created_tmp_disk_tables';
set @save_max_heap_table_size=@@max_heap_table_size;
set @@optimizer_switch=@save_optimizer_switch;