--disable_warnings DROP DATABASE IF EXISTS MCOL5607; --enable_warnings 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; SELECT COUNT(*) FROM zu wHERE JSON_VALUE(hu, '$.buga') IS NOT NULL AND JSON_VALUE(hu, '$.zhuga') IS NULL; DROP DATABASE MCOL5607;