Ubuntu 22.04 x64 환경에서 컴파일 했습니다.
짧은글 일수록 신중하게.
SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_PDS WHERE ((INSTR(wr_subject, '占�0占쏙옙0占쏙옙0占쏙옙0占쎌옣留덉궗吏�占�')>0) and (INSTR(wr_subject, '占�0占�')>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267