Large repack.log_* toast_size in pg_class

[matthewbyrne]

Self-Hosted Version

23.3.1

CPU Architecture

x86_64

Docker Version

25.0.4-1.el7

Docker Compose Version

1.29.2

Steps to Reproduce

Our self hosted Sentry instance ran out of disk today. I followed documented steps to reduce the size of the nodestore table, and reclaimed 50GB of disk, but noticed in the pg_class table 2 very large toast sizes below:

SELECT oid::regclass, reltoastrelid::regclass, pg_relation_size(reltoastrelid) AS toast_size FROM pg_class WHERE relkind = 'r' AND reltoastrelid <> 0 ORDER BY 3 DESC;
                    oid                     |        reltoastrelid         |  toast_size
--------------------------------------------+------------------------------+--------------
 repack.log_20249                           | pg_toast.pg_toast_1181849834 | 157098164224
 repack.log_1181849834                      | pg_toast.pg_toast_2923418714 |     12328960

What are these tables, and are the safe to remove?

Expected Result

I'd like an understanding of these undocumented tables

Actual Result

Tables are consuming a lot of disk for an unknown reason

Event ID

No response