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activity: when restricting deactivated users, precalculate the user list

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the PostgreSQL query planner is easily confused due to the complexity of
certain queries we make.  while we plan to simplify these queries through
unification of activities and objects, we are not yet there.  it has been
discovered that using a precalculated list of deactivated users encourages
the query planner to prefer simpler indices instead of the
activity_visibility index.

accordingly, drop the subquery and precalc the user list instead.
This commit is contained in:
Ariadne Conill 2019-09-06 23:14:29 +00:00
parent 5effb2cbca
commit 40a61532ca
1 changed files with 5 additions and 5 deletions
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10
lib/pleroma/activity.ex
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@ -362,12 +362,12 @@ defmodule Pleroma.Activity do
end
def restrict_deactivated_users(query) do
deactivated_users =
from(u in User.Query.build(deactivated: true), select: u.ap_id)
|> Repo.all()
from(activity in query,
where:
fragment(
"? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
activity.actor
)
where: activity.actor not in ^deactivated_users
)
end