Create a partial unique index on issuable-resource-links
requested to merge gitlab-community/gitlab:create-a-partial-unique-index-on-issue-id-and-link-to-issuable-resource-links-where-is-unique into master
What does this MR do and why?
Context: #437902
Create a partial unique index on issuable-resource-links
This commit adds a boolean column to issuable_resource_links that will help build a partial unique index.
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