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Optionally to create foreign key constraint without creating index on it. In some cases this is a duplicate unusable indexes. On big tables that impact performance.
The text was updated successfully, but these errors were encountered:
This is a non-trivial change because foreign key checking is done in the
index code. It would be easier to recognize that an existing index could
be used than to allow a constraint without any index at all.
Submitted by: Dejan Schild (schild)
Votes: 4
Optionally to create foreign key constraint without creating index on it. In some cases this is a duplicate unusable indexes. On big tables that impact performance.
The text was updated successfully, but these errors were encountered: