Scott Marlowe <smarlowe@xxxxxxxxxxxxxxxxx> writes:
> On Tue, 2005-07-19 at 10:25, Tom Lane wrote:
>> None of the index types support entries larger than BLOCKSIZE-less-a-bit,
>> so switching to a different index type won't do more than push the
>> problem out by a factor of about 3.
> Are they compressed? It would look to me like maybe they are, or
> something strange like that. When I fed highly compressable data into
> an indexed field, it took a LOT of said text to get a failure method.
Yes, we do try to compress large index entries --- so the BLOCKSIZE or
BLOCKSIZE/3 limitation applies after compression. That's independent
of index type AFAIK. What we don't have is a TOAST table backing every
index to allow out-of-line storage ...
regards, tom lane
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