| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | Shubham Barai <shubhambaraiss(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: UNIQUE capability to hash indexes |
| Date: | 2016-02-04 22:34:45 |
| Message-ID: | 5455.1454625285@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> Tom Lane wrote:
>> Not that I've heard of. It's very hard to muster any enthusiasm for
>> improving hash indexes unless their lack of WAL-logging is fixed first.
> This is really strange though. Surely adding WAL-logging is not an
> enormous task anymore ... I mean, we're undertaking far larger efforts
> now, the WAL logging code is simpler than before, and we even have a
> tool (ok, gotta streamline that one a little bit) to verify that the
> results are correct.
ISTR that we discussed this previously and ran into some stumbling block
or other that made it less-than-trivial. Don't recall what though.
regards, tom lane
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