Re: [HACKERS] Tuple length limit

[Charset iso-8859-1 unsupported, filtering to ASCII...]
> > Can someone tell me what the maximum tuple length is? Is it sort of
> > BLCKSZ or BLCKSZ/2? I don't remember if we require the ability to have
> > at least two tuples in a block.
>
> IIRC, the max tuple size was always intended to be BLCKSZ, it's just the max
> size of the text fields that were 4096. I don't remember any discussions
> ever on this list about trying to control the # of tuples stored per block.
>

That is what I found too, but vacuum seems to use BLCKSZ/2, varchar uses
BLCKSZ/2, and tuple size is BLCKSZ. Doesn't make any sense.

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026