| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com> |
| Cc: | Ants Aasma <ants(dot)aasma(at)eesti(dot)ee>, Simon Riggs <simon(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Does people favor to have matrix data type? |
| Date: | 2016-05-25 14:14:39 |
| Message-ID: | 24683.1464185679@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com> writes:
> The 'matrix' data type as domain type of real[] is an option to implement.
> We can define operators on the domain types, thus, it allows us to process
> large amount of calculation by one operation, in native binary speed.
Don't go that way, it will cause you nothing but pain. The ambiguous-
operator resolution rules are not friendly at all to operators with domain
arguments; basically only exact matches will be recognized.
regards, tom lane
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