SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_vm WHERE ((INSTR(wr_subject, '��0붿뒪�0�')>0 or INSTR(wr_content, '��0붿뒪�0�')>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267