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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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7
mysql-test/main/user_var.test
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@ -25,6 +25,7 @@ explain select @vv1:=i from t1 where i=@vv1;
explain select * from t1 where i=@vv1;
drop table t1,t2;
--disable_ps2_protocol
# Check types of variables
set @a=0,@b=0;
select @a:=10, @b:=1, @a > @b, @a < @b;
@ -74,6 +75,7 @@ set @a=0;
select @a,@a:="hello",@a,@a:=3,@a,@a:="hello again" from t1 group by i;
select @a,@a:="hello",@a,@a:=3,@a,@a:="hello again" from t1 group by i;
drop table t1;
--enable_ps2_protocol
#
# Bug #2244: User variables didn't copy collation and derivation
@ -263,7 +265,7 @@ drop table t1;
#
# Bug#26020: User-Defined Variables are not consistent with columns data types
#
--disable_ps2_protocol
create table t1(b bigint);
insert into t1 (b) values (10), (30), (10);
set @var := 0;
@ -281,6 +283,7 @@ insert into t1 values (2), (3), (3), (4);
set @lastid=-1;
select @lastid != id, @lastid, @lastid := id from t1;
drop table t1;
--enable_ps2_protocol
#
# Bug#42009: SELECT into variable gives different results to direct SELECT
@ -333,8 +336,10 @@ DROP TABLE t1;
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES (0),(0);
--disable_ps2_protocol
--echo # BUG#55615 : should not crash
SELECT (@a:=(SELECT @a:=1 FROM t1 LIMIT 1)) AND COUNT(1) FROM t1 GROUP BY @a;
--enable_ps2_protocol
--echo # BUG#55564 : should not crash
SELECT IF(
@v:=LEAST((SELECT 1 FROM t1 t2 LEFT JOIN t1 ON (@v) GROUP BY t1.a), a),