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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/multi_update.test
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@ -1121,12 +1121,15 @@ INSERT INTO t1 (part,a,b) VALUES (0,0,0),(1,1,1),(2,2,2);
INSERT INTO t2 (part,a,b) VALUES (0,0,0),(1,1,1),(2,2,2);
--echo # Expecting partition "Current"
--source include/explain-no-costs.inc
EXPLAIN FORMAT=JSON UPDATE t2 JOIN t1 USING(a) SET t2.part=3 WHERE t2.part=0 AND t1.part=0;
--echo # Expecting partition "Relevant"
--source include/explain-no-costs.inc
EXPLAIN FORMAT=JSON UPDATE t2 JOIN t1 USING(a) SET t2.part=2 WHERE t2.part=1 AND t1.part=1;
--echo # Expecting partition "Archive"
--source include/explain-no-costs.inc
EXPLAIN FORMAT=JSON UPDATE t2 JOIN t1 USING(a) SET t2.part=3 WHERE t2.part=2 AND t1.part=2;
DROP TABLES t1, t2;