Re: proposal: searching in array function - array_position

On 3/11/15 1:29 AM, Pavel Stehule wrote:

    What is this comment supposed to mean? There is no 'width_array'...


It is typo (I am sorry) - should be width_bucket(, array)

http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=e80252d424278abf65b624669c8e6b3fe8587cac

The code is similar, but it expect large **sorted** input. array_offset
works on unsorted (alphabetical unsorted) data sets - like days of week ..

The functions are serving rather different purposes, so I'm not sure it's worth mentioning. If we do want to mention it, then something like the following should be added to *both* functions:

 * This code is similar to width_bucket()

and

 * This code is similar to array_offset()

Incidentally, isn't it bad that we're doing all these static assignments inside the loop in width_bucket? Or can we count on the compiler to recognize this?

http://lnk.nu/github.com/1dvrr.c

--
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com