Fix duplicate CHECK constraints for Boolean/Enum in batch mode#1793

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khanjan2708 wants to merge 3 commits intosqlalchemy:mainfrom

khanjan2708:issue-1768

Commits on Feb 20, 2026

Fix duplicate CHECK constraints for Boolean/Enum in batch mode
khanjan2708
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Commits on Feb 23, 2026

Fix PEP 484 type errors and Windows-specific mypy attribute errors
khanjan2708
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Refactor: move schema event disabling to sqla_compat helper as suggested
khanjan2708
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