MySQL 8.4

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select version();

version()

8.4.3

CREATE TABLE tbl (cln int);
INSERT INTO tbl (cln) VALUES (1);
SELECT cln `bAr` from tbl WHERE bar = 1;

Unknown column 'bar' in 'where clause'

SELECT cln `bAr` from tbl WHERE `bAr` = 1;

Unknown column 'bAr' in 'where clause'