Shout out to team — we are seeing huge reduction in index sizes when upgrading to PG13 👏
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I was one of the people that worked on it directly. I'm glad that you found it useful!
This feature greatly reduces the size of the single large object in most instances. It's going to make small instances easier and cheaper for self-hosters and make larger instances scale vertically for a lot longer. Thanks!
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Great! Don't forget to assess Postgres 14 B-Tree stuff when next release comes around for Discourse (this time next year?). Index deletion greatly improved now, which helps a lot in cases where VACUUM can't keep up with updaters + several big indexes. See postgresql.org/docs/devel/btr.
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