zlwuandCursor
4654678231
ACL 表与 sys_user JOIN/条件比较统一 utf8mb4_unicode_ci，并补建表 COLLATE 与 CONVERT 修复脚本（#97）。 Co-authored-by: Cursor <cursoragent@cursor.com>
31 lines
1004 B
Python
31 lines
1004 B
Python
"""MySQL 字符串比较/模糊匹配时统一排序规则，避免 Illegal mix of collations。"""
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_UNICODE_CI = "utf8mb4_unicode_ci"
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def unicode_ci(col):
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"""将列显式设为 utf8mb4_unicode_ci。"""
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return col.collate(_UNICODE_CI)
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def eq_unicode(left, right):
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"""跨表字符串等值比较（JOIN / WHERE）时统一为 utf8mb4_unicode_ci。
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列与列：两侧 collate。列与字面量：仅列侧 collate，避免连接 collation
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（常见 utf8mb4_general_ci）与列 collation（utf8mb4_unicode_ci）混用。
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"""
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left_is_str = isinstance(left, str)
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right_is_str = isinstance(right, str)
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if left_is_str and right_is_str:
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return left == right
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if left_is_str:
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return left == unicode_ci(right)
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if right_is_str:
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return unicode_ci(left) == right
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return unicode_ci(left) == unicode_ci(right)
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def like_unicode(col, pattern: str):
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"""LIKE 模糊匹配时统一排序规则。"""
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return unicode_ci(col).like(pattern)
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