Re: [HACKERS] Priorities for 6.6 - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] Priorities for 6.6
Date
Msg-id 199906040327.XAA04545@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] Priorities for 6.6  (Vadim Mikheev <vadim@krs.ru>)
Responses Re: [HACKERS] Priorities for 6.6
List pgsql-hackers
> Implementation seems easy:
> 
> struct varlena
> {
>     int32       vl_len;
>     char        vl_dat[1];
> };
> 
> 1. make vl_len uint32;
> 2. use vl_len & 0x80000000 as flag that underlying data is
>    in another place;
> 3. put oid of external "relation" (where data is stored),
>    blocknumber and item position (something else?) to vl_dat.
> ...

Yes, it would be very nice to have this.

--  Bruce Momjian                        |  http://www.op.net/~candle maillist@candle.pha.pa.us            |  (610)
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