mariadb/mysql-test/main/analyze_format_json_timings.test

#
#  Tests to check that r_something_time_ms is non-zero in
#    ANALYZE FORMAT=JSON <statement>
#
--source include/default_optimizer_switch.inc
--source include/have_sequence.inc

# The tests here are large so that we get non-zero timings
--source include/big_test.inc

--echo #
--echo # MDEV-30830: ANALYZE FORMAT=JSON: r_unpack_time_ms is empty for the hashed joins
--echo #

--echo #
--echo # First, check a regular BNL-join
--echo #
create table t1 (
  a int,
  b int
);
insert into t1 select seq, seq/3 from seq_0_to_99;

create table t2 (
  a int,
  b int
);
insert into t2 select seq, seq/5 from seq_0_to_99;

let $out=`
analyze format=json
select * from t1, t2
where
 t1.a < 700 and
 t2.a < 100
 and t1.b=t2.b
`;

evalp set @js='$out';
set @out=(select json_extract(@js,'$**.block-nl-join.r_unpack_time_ms'));
select cast(json_extract(@out,'$[0]') as DOUBLE) > 0;
drop table t1,t2;

--echo #
--echo # Now, check the hashed, BNL-H join
--echo #
create table t1 (
  a int,
  b int
);
insert into t1 select seq, seq/3 from seq_0_to_499;

create table t2 (
  a int,
  b int
);
insert into t2 select seq, seq/5 from seq_0_to_499;
set @tmp=@@join_cache_level, join_cache_level=6;

let $out=`
analyze format=json
select * from t1, t2
where
 t1.a < 700 and
 t2.a < 100
 and t1.b=t2.b
`;

--source include/analyze-format.inc
evalp select '$out' as X;

set @out=(select json_extract(@js,'$**.block-nl-join.r_unpack_time_ms'));
select cast(json_extract(@out,'$[0]') as DOUBLE) > 0;

set join_cache_level=@tmp;
drop table t1, t2;

--echo #
--echo # MDEV-30972: ANALYZE FORMAT=JSON: some time is unaccounted-for in BNL-H join
--echo #

create table t1 (
  a int,
  col1 varchar(100),
  col2 varchar(100),
  col3 varchar(100)
);

insert into t1 select
  seq/100,
  concat('col1-', seq),
  concat('col1-', seq),
  concat('col1-', seq)
from seq_1_to_1000;

create table t2 (
  a int,
  col1 varchar(100),
  col2 varchar(100),
  col3 varchar(100)
);

insert into t2 select
  seq/100,
  concat('col1-', seq),
  concat('col1-', seq),
  concat('col1-', seq)
from seq_1_to_2000;

set @tmp=@@join_cache_level, join_cache_level=6;

let $out=`
analyze format=json
select * from t1, t2
where
  t1.a=t2.a
  and concat(t1.col1, t1.col2, t1.col3)= concat(t2.col1, t2.col2, t2.col3)
`;
--source include/analyze-format.inc
evalp select '$out' as X;

set @out=(select json_extract(@js,'$**.block-nl-join.r_other_time_ms'));
select cast(json_extract(@out,'$[0]') as DOUBLE) > 0;

set join_cache_level=@tmp;
drop table t1, t2;