ERROR:  heap_delete: (am)invalid tid

James Leigh wrote:

I am using 6.4.2 postgresql from a Mandrake rpm. That I cannot change
:(.

Whow - now that's old.

Is this a bug? I get it some times when deleting a record. This is
happening inside a C program and it segfaults after writing this error.
It is hard to reproduce, but it happens. Any old dogs know what this
means?

ERROR: heap_delete: (am)invalid tid

Not totally sure, it's hard to tell. Actually the heap access
method is trying to delete a row that shouldn't have been
found according to HeapTupleSatisfies() in the first place.
So the question is why has it been found?

Could it be that you had a transaction ID wrap around? I
mean, v6.4.2, that system might be running without
dump/reload for some time. Such a wrap around could result
in major corruption of your data, so you might stop recycling
any of your old backup tapes until you know for sure what the
reason is/was and that your database is still consistent.

How big is the data/pg_log file?

Jan

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