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Re: Export user visible function to make use of convert_to_scalar

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Gregory Stark <stark(at)enterprisedb(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: Export user visible function to make use of convert_to_scalar
Date: 2007-07-31 17:31:06
Message-ID: 26891.1185903066@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-patches
Gregory Stark <stark(at)enterprisedb(dot)com> writes:
> "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>> When complaining I hadn't read the pghackers thread in which you
>> suggested this, and now that I'm caught up on email I remain
>> unconvinced.  What do you need convert_to_scalar for in order to display
>> the pg_statistic histogram?  You've already got the underlying data.

> Then the charting tool would have to duplicate all the same code that
> convert_to_scalar has to figure out what to do with the data.

How so?  The entries in the histogram are equidistant by definition.

			regards, tom lane

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