On Sat, 2025-04-26 at 11:09 -0600, Sbob wrote: > I am working with a client, they have an app that is running into error's like this: > > SQL Error [XX001]: ERROR: missing chunk number 0 for toast value 44915477 in pg_toast_5321896 > > I thought it was a corruption / REINDEX issue, however I have run REINDEXon the index, > REINDEX on the table and even a reindexdb on the database. Today they passed me another > error (the one above) and once I was able to login I ran the same query the app team > referenced and it ran without any errors. I asked them to re-run the query and they > informed me that it now works for them as well. > > I assume that if this were a corrupt index issue then the query would continue to fail > every time. > > Has anyone seen this type of intermittent index error before? and thoughts on where to > look /how to debug this? The error is data corruption. If it is transient, that could mean a couple of things: - a TOAST index was corrupted, and REINDEX fixed it - faulty RAM corrupted data, but as soon as the corrupted buffer was evicted, the problem was gone - somebody updated or deleted the row, and the corruption is hidden Yours, Laurenz Albe
