Re: Vacuum problem on large table

mordicus <mordicus(at)free(dot)fr> writes:
> vacuum verbose analyse record_blob;
> NOTICE: --Relation record_blob--
> NOTICE: Pages 62437: Changed 0, reaped 0, Empty 0, New 0; Tup 1005540: Vac
> 0, Keep/VTL 0/0, Crash 0, UnUsed 0, MinLen 80, MaxLen 2032; Re-using:
> Free/Avail. Space 0/0; EndEmpty/Avail. Pages 0/0. CPU 4.57s/0.37u sec.
> NOTICE: --Relation pg_toast_44260091--
> NOTICE: Pages 1: Changed 0, reaped 0, Empty 0, New 0; Tup 2: Vac 0,
> Keep/VTL 0/0, Crash 0, UnUsed 0, MinLen 63, MaxLen 2034; Re-using:
> Free/Avail. Space 0/0; EndEmpty/Avail. Pages 0/0. CPU 0.00s/0.00u sec.
> NOTICE: Index pg_toast_44260091_idx: Pages 2; Tuples 2. CPU 0.00s/0.00u
> sec.
> NOTICE: Analyzing...
> ERROR: Memory exhausted in AllocSetAlloc(875769886)

This looks like corrupt data --- specifically, a varlena value with a
ridiculous length word --- in your table. Hard to say more with so
little information.

regards, tom lane