Switch to associated_object_id index

lib/mix/tasks/pleroma/database.ex

@@ -154,9 +154,8 @@ def run(["ensure_expiration"]) do
     |> join(:inner, [a], o in Object,
       on:
         fragment(
-          "(?->>'id') = COALESCE((?)->'object'->> 'id', (?)->>'object')",
+          "(?->>'id') = associated_object_id((?))",
           o.data,
-          a.data,
           a.data
         )
     )

lib/pleroma/activity.ex

@@ -53,7 +53,7 @@ defmodule Pleroma.Activity do
     #
     # ```
     # |> join(:inner, [activity], o in Object,
-    #      on: fragment("(?->>'id') = COALESCE((?)->'object'->> 'id', (?)->>'object')",
+    #      on: fragment("(?->>'id') = associated_object_id((?))",
     #        o.data, activity.data, activity.data))
     # |> preload([activity, object], [object: object])
     # ```
@@ -69,9 +69,8 @@ def with_joined_object(query, join_type \\ :inner) do
     join(query, join_type, [activity], o in Object,
       on:
         fragment(
-          "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
+          "(?->>'id') = associated_object_id(?)",
           o.data,
-          activity.data,
           activity.data
         ),
       as: :object

lib/pleroma/activity/queries.ex

@@ -52,8 +52,7 @@ def by_object_id(query, object_ids) when is_list(object_ids) do
       activity in query,
       where:
         fragment(
-          "coalesce((?)->'object'->>'id', (?)->>'object') = ANY(?)",
-          activity.data,
+          "associated_object_id((?)) = ANY(?)",
           activity.data,
           ^object_ids
         )
@@ -64,8 +63,7 @@ def by_object_id(query, object_id) when is_binary(object_id) do
     from(activity in query,
       where:
         fragment(
-          "coalesce((?)->'object'->>'id', (?)->>'object') = ?",
-          activity.data,
+          "associated_object_id((?)) = ?",
           activity.data,
           ^object_id
         )

lib/pleroma/migrators/hashtags_table_migrator.ex

@@ -183,7 +183,7 @@ def delete_non_create_activities_hashtags do
     DELETE FROM hashtags_objects WHERE object_id IN
       (SELECT DISTINCT objects.id FROM objects
         JOIN hashtags_objects ON hashtags_objects.object_id = objects.id LEFT JOIN activities
-          ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') =
+          ON associated_object_id(activities) =
             (objects.data->>'id')
           AND activities.data->>'type' = 'Create'
         WHERE activities.id IS NULL);

lib/pleroma/notification.ex

@@ -117,9 +117,8 @@ def for_user_query(user, opts \\ %{}) do
     |> join(:left, [n, a], object in Object,
       on:
         fragment(
-          "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
+          "(?->>'id') = associated_object_id(?)",
           object.data,
-          a.data,
           a.data
         )
     )
@@ -193,13 +192,11 @@ defp exclude_visibility(query, %{exclude_visibilities: visibility})
       |> join(:left, [n, a], mutated_activity in Pleroma.Activity,
         on:
           fragment(
-            "COALESCE((?->'object')->>'id', ?->>'object')",
-            a.data,
+            "associated_object_id(?)",
             a.data
           ) ==
             fragment(
-              "COALESCE((?->'object')->>'id', ?->>'object')",
-              mutated_activity.data,
+              "associated_object_id(?)",
               mutated_activity.data
             ) and
             fragment("(?->>'type' = 'Like' or ?->>'type' = 'Announce')", a.data, a.data) and

lib/pleroma/object.ex

@@ -40,8 +40,7 @@ def with_joined_activity(query, activity_type \\ "Create", join_type \\ :inner)
     join(query, join_type, [{object, object_position}], a in Activity,
       on:
         fragment(
-          "COALESCE(?->'object'->>'id', ?->>'object') = (? ->> 'id') AND (?->>'type' = ?) ",
-          a.data,
+          "associated_object_id(?) = (? ->> 'id') AND (?->>'type' = ?) ",
           a.data,
           object.data,
           a.data,

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -1150,8 +1150,7 @@ defp restrict_pinned(query, %{pinned: true, pinned_object_ids: ids}) do
       [activity, object: o] in query,
       where:
         fragment(
-          "(?)->>'type' = 'Create' and coalesce((?)->'object'->>'id', (?)->>'object') = any (?)",
-          activity.data,
+          "(?)->>'type' = 'Create' and associated_object_id((?)) = any (?)",
           activity.data,
           activity.data,
           ^ids

priv/repo/migrations/20220711192750_switch_to_associated_object_id_index.exs

@@ -0,0 +1,39 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Repo.Migrations.SwitchToAssociatedObjectIdIndex do
+  use Ecto.Migration
+  @disable_ddl_transaction true
+  @disable_migration_lock true
+
+  def up do
+    drop_if_exists(
+      index(:activities, ["(coalesce(data->'object'->>'id', data->>'object'))"],
+        name: :activities_create_objects_index
+      )
+    )
+
+    create(
+      index(:activities, ["associated_object_id(data)"],
+        name: :activities_create_objects_index,
+        concurrently: true
+      )
+    )
+  end
+
+  def down do
+    drop_if_exists(
+      index(:activities, ["associated_object_id(data)"],
+        name: :activities_create_objects_index
+      )
+    )
+
+    create(
+      index(:activities, ["(coalesce(data->'object'->>'id', data->>'object'))"],
+        name: :activities_create_objects_index,
+        concurrently: true
+      )
+    )
+  end
+end