SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_PDS WHERE ((INSTR(LOWER(wr_subject), LOWER('�뀛1�젅@prmecoin鍮꾪듃肄붿씤�넀����넀�뾽泥댁퐫�씤�넚湲덉뾽泥대퉬�듃肄붿씤�넀����넀�뾽泥댁퐫�씤�넚湲덉뾽泥�'))>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267