SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_PDS WHERE ((INSTR(LOWER(wr_subject), LOWER('�뀛1�젅@prmecoin�뀒�뜑�넀����넀怨꾩쥖�씠泥대줈�뀒�뜑肄붿씤援щℓ�뀒�뜑�넀����넀怨꾩쥖�씠泥대줈�뀒�뜑肄붿씤援щℓ'))>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267