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MDEV-30032: EXPLAIN FORMAT=JSON output: print costs

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Basic printout for join and table execution costs.
This commit is contained in:
Sergei Petrunia
2022-11-19 21:00:23 +03:00
parent 657868f5e7
commit ffe0beca25
91 changed files with 3441 additions and 18 deletions
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3
mysql-test/main/cte_recursive.test
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@ -1110,6 +1110,7 @@ as
)
select ancestors.name, ancestors.dob from ancestors;
--source include/explain-no-costs.inc
explain FORMAT=JSON
with recursive
prev_gen
@ -1139,6 +1140,7 @@ as
select ancestors.name, ancestors.dob from ancestors;
--echo #
--source include/explain-no-costs.inc
explain format=json
with recursive
ancestor_couples(h_id, h_name, h_dob, h_father, h_mother,
@ -1343,6 +1345,7 @@ drop table folks;
create table t1(a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
--source include/explain-no-costs.inc
explain format=json
with recursive t as (select a from t1 union select a+10 from t where a < 1000)
select * from t;