코어 옆에 미세저항이 좀 있네요.
SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_hojak WHERE ((INSTR(LOWER(wr_subject), LOWER('ì—°ì0•0 ìž0˜í•0˜ëŠ0”ë²0•á˜0Œâ™¥O6O'))>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267
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