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I have the following index

create unique index open_issues_unique on issue (status, type, reference_id) where status = 'OPEN';

This means the value of the column status will always be OPEN. Does this have a negative impact on the index performance? Can I simply remove status from the index as I have the where clause?

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  • You may either remove this column from the index expression or move it to the end if the expression (this can be useful when the index is covering one for a query).
    – Akina
    Feb 22 at 11:16

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