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* Quick question regarding indexes and NULLs in 7.3.3 -> 7.4
@ 2003-05-25 22:11 Josh Berkus <josh@agliodbs.com>
0 siblings, 1 reply; 2+ messages in thread
From: Josh Berkus @ 2003-05-25 22:11 UTC (permalink / raw)
To: pgsql-sql
Folks,
I'm updating Joy of Index, and I wanted to clear something up. In 7.3.3, and
in 7.4 CVS, will IS NOT NULL queries use a regular index if NULLs are
sufficiently uncommon, or does this still require an IS NULL partial index as
it did in 7.2.x? I don't want to mislead readers ....
--
Josh Berkus
Aglio Database Solutions
San Francisco
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Quick question regarding indexes and NULLs in 7.3.3 -> 7.4
@ 2003-05-25 22:59 Tom Lane <tgl@sss.pgh.pa.us>
parent: Josh Berkus <josh@agliodbs.com>
0 siblings, 0 replies; 2+ messages in thread
From: Tom Lane @ 2003-05-25 22:59 UTC (permalink / raw)
To: Josh Berkus <josh@agliodbs.com>; +Cc: pgsql-sql
Josh Berkus <josh@agliodbs.com> writes:
> I'm updating Joy of Index, and I wanted to clear something up. In 7.3.3, and
> in 7.4 CVS, will IS NOT NULL queries use a regular index
No. There is no infrastructure that would make this possible.
regards, tom lane
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2003-05-25 22:11 Quick question regarding indexes and NULLs in 7.3.3 -> 7.4 Josh Berkus <josh@agliodbs.com>
2003-05-25 22:59 ` Tom Lane <tgl@sss.pgh.pa.us>
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