Dave Crooke <dcro...@gmail.com> wrote: > I'm not defending the decision to store blobs in a database (it was > taken a while ago, before the need for frequent updates of the XML) > and it isn't something that can be readily changed at short notice, > so please no advice about "don't do that" :-) I wouldn't sweat 50kB chunks of XML. We store 10MB PDF files. :-) > is showing 40-50% dead tuples. However, if I disconnect the app, all > the dead tuples clean up and moved to the "free space" category. As you suspected, that sounds like lingering database transactions. Try looking at the pg_stat_activity table for transactions "IDLE in transaction". If you're having trouble pinning down the cause, look the pg_locks view to see what tables they've been in. -Kevin
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