pleroma

commit: 2ead4e108a802e73aea34e506a4f9f50eb0b3993
parent: 9b33cab06ee99f357b0df8512e92136b5f1433a1
Author: rinpatch <rinpatch@sdf.org>
Date:   Mon, 11 May 2020 22:13:08 +0000

Merge branch 'migration-fix-markers' into 'develop'

Markers migration: Fix migration for very large list of markers

See merge request pleroma/pleroma!2511
Diffstat:
M
priv/repo/migrations/20200415181818_update_markers.exs
12
++++++++----

1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/priv/repo/migrations/20200415181818_update_markers.exs b/priv/repo/migrations/20200415181818_update_markers.exs
@@ -32,9 +32,13 @@ defmodule Pleroma.Repo.Migrations.UpdateMarkers do
         |> Map.put_new(:updated_at, now)
       end)
 
-    Repo.insert_all("markers", markers_attrs,
-      on_conflict: {:replace, [:last_read_id]},
-      conflict_target: [:user_id, :timeline]
-    )
+    markers_attrs
+    |> Enum.chunk_every(1000)
+    |> Enum.each(fn markers_attrs_chunked ->
+      Repo.insert_all("markers", markers_attrs_chunked,
+        on_conflict: {:replace, [:last_read_id]},
+        conflict_target: [:user_id, :timeline]
+      )
+    end)
   end
 end