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activitypub utils: optimize block and follow activity lookup

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multi-field @> comparison is very expensive, so only use @> for the field where it matters
this makes the query take only a few usec to execute verses many msec on a busy instance
This commit is contained in:
William Pitcock 2018-05-25 05:19:11 +00:00
parent f3a71f2986
commit 47dc52a758
1 changed files with 16 additions and 6 deletions
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22
lib/pleroma/web/activity_pub/utils.ex
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@ -240,11 +240,16 @@ defmodule Pleroma.Web.ActivityPub.Utils do
activity in Activity,
where:
fragment(
"? @> ?",
activity.data,
^%{type: "Follow", object: followed_id}
"? ->> 'type' = 'Follow'",
activity.data
),
where: activity.actor == ^follower_id,
where:
fragment(
"? @> ?",
activity.data,
^%{object: followed_id}
),
order_by: [desc: :id],
limit: 1
)
@ -365,11 +370,16 @@ defmodule Pleroma.Web.ActivityPub.Utils do
activity in Activity,
where:
fragment(
"? @> ?",
activity.data,
^%{type: "Block", object: blocked_id}
"? ->> 'type' = 'Block'",
activity.data
),
where: activity.actor == ^blocker_id,
where:
fragment(
"? @> ?",
activity.data,
^%{object: blocked_id}
),
order_by: [desc: :id],
limit: 1
)