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fix(funcexp): MCOL-5607: JSON function use crashes query execution (#3028)

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JSON functions were implemented violating an assumption of their
pureness, as they should not have any state. This concrete patch
fixes implementation of JSON_VALUE function.
This commit is contained in:
Sergey Zefirov
2023-11-21 23:46:03 +03:00
committed by Leonid Fedorov
parent 1935c9c1da
commit 2eca3ee656
5 changed files with 97 additions and 22 deletions
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34
mysql-test/columnstore/basic/r/MCOL-5607-json-value-fix.result Normal file
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DROP DATABASE IF EXISTS MCOL5607;
CREATE DATABASE MCOL5607;
USE MCOL5607;
CREATE TABLE zu (hu TEXT) ENGINE = COLUMNSTORE;
INSERT INTO zu(hu) VALUES ('{}'), (NULL), ('{ "": "huh", "10001" : "10001", "10002" : "10001", "10003" : "10001", "10004" : "10001", "10005" : "10001", "10006" : "10001", "10007" : "10001", "10008" : "10001", "10009" : "10001", "10010" : "10001", "10011" : "10001", "10012" : "10001", "10013" : "10001", "10014" : "10001", "10015" : "10001", "10016" : "10001", "10017" : "10001", "10018" : "10001", "10019" : "10001", "10020" : "10001", "buga" : ""}');
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
SELECT COUNT(*) FROM zu;
COUNT(*)
3145728
SELECT COUNT(*) FROM zu wHERE
JSON_VALUE(hu, '$.buga') IS NOT NULL
AND JSON_VALUE(hu, '$.zhuga') IS NULL;
COUNT(*)
1048576
DROP DATABASE MCOL5607;