SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_PDS WHERE ((INSTR(LOWER(wr_subject), LOWER('�뀛�젅@coinsp24�빖�뱶�룿寃곗젣85臾명솕�긽�뭹沅뚰뀒�뜑援щℓ�빖�뱶�룿寃곗젣85臾명솕�긽�뭹沅뚰뀒�뜑援щℓ'))>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267