Rename users_ap_id_COALESCE_follower_address_index for faster db restoration
authorilja <git@ilja.space>
Fri, 27 Jan 2023 15:06:27 +0000 (16:06 +0100)
committerilja <git@ilja.space>
Sun, 26 Feb 2023 13:33:17 +0000 (14:33 +0100)
commit8b2adc4fb405cfafd6cca5daa8baf8af24230a7a
tree6ae438eb7336a5595ff0e8cc8b63f1c1ac670859
parent9f34294332bf4d433bd76f4e8a767f1828f1df45
Rename users_ap_id_COALESCE_follower_address_index for faster db restoration

By default Postgresql first restores the data and then the indexes when dumping and restoring the database.
Restoring index activities_visibility_index took a very long time.
users_ap_id_COALESCE_follower_address_index was later added because having this could speed up the restoration tremendously.
The problem now is that restoration apparently happens in alphabetical order, so this new index wasn't created yet
by the time activities_visibility_index needed it.
There were several work-arounds which included more complex steps during backup/restore.
By renaming this index, it should be restored first and thus activities_visibility_index can make use of it.
This speeds up restoration significantly without requiring more complex or unexpected steps from people.
priv/repo/migrations/20230127143303_rename_index_users_ap_id_coalesce_follower_address_index.exs [new file with mode: 0644]