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Removed versionadded/changed annotations for 4.0.
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@ -186,8 +186,6 @@ database.
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Adding constraints without enforcing validation
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===============================================
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.. versionadded:: 4.0
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PostgreSQL supports the ``NOT VALID`` option with the ``ADD CONSTRAINT``
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statement to add check constraints without enforcing validation on existing
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rows. This option is useful if you want to skip the potentially lengthy scan of
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