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[#3213] Experimental / debug feature: database: [improved_hashtag_timeline: :preselect_hashtag_ids].

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Ivan Tashkinov 2021-02-18 21:03:06 +03:00
parent b981edad8a
commit 998437d4a4
1 changed files with 35 additions and 12 deletions
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23
lib/pleroma/web/activity_pub/activity_pub.ex
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@ -787,6 +787,28 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
end end
defp restrict_hashtag_any(query, %{tag: [_ | _] = tags}) do defp restrict_hashtag_any(query, %{tag: [_ | _] = tags}) do
# TODO: refactor: debug / experimental feature
if Config.get([:database, :improved_hashtag_timeline]) == :preselect_hashtag_ids do
hashtag_ids =
from(ht in Pleroma.Hashtag,
where: fragment("name = ANY(?::citext[])", ^tags),
select: ht.id
)
|> Repo.all()
from(
[_activity, object] in query,
where:
fragment(
"""
EXISTS (
SELECT 1 FROM hashtags_objects WHERE hashtag_id = ANY(?) AND object_id = ? LIMIT 1)
""",
^hashtag_ids,
object.id
)
)
else
from( from(
[_activity, object] in query, [_activity, object] in query,
where: where:
@ -801,6 +823,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
) )
) )
end end
end
defp restrict_hashtag_any(query, %{tag: tag}) when is_binary(tag) do defp restrict_hashtag_any(query, %{tag: tag}) when is_binary(tag) do
restrict_hashtag_any(query, %{tag: [tag]}) restrict_hashtag_any(query, %{tag: [tag]})