Add FK from partitioned web_hook_logs to web_hooks (Part 3 of partitioned web_hook_logs migrations)
What does this MR do?
Related issue: #323676 (closed)
We have split !59190 (closed) to three MRs as there is considerable overhead to add each index to each partition of web_hook_logs. For more information and a full analysis, check !59190 (closed)
This is the third migration, in which we are adding a foreign key from the partitioned web_hook_logs (web_hook_logs_part_0c5294f417) to web_hooks.
We are also adding a new partitioning migration helper (add_concurrent_partitioned_foreign_key) that allows us to add foreign keys to partitioned tables with minimal locking and while overcoming PostgreSQL's restriction that does not allow adding NOT VALID foreign keys to partitioned tables.
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