6aebedc384
Remove conditionally-compiled code for smaller Datum widths, and simplify comments that describe cases no longer of interest. I also fixed up a few more places that were not using DatumGetIntXX where they should, and made some cosmetic adjustments such as using sizeof(int64) not sizeof(Datum) in places where that fit better with the surrounding code. One thing I remembered while preparing this part is that SP-GiST stores pass-by-value prefix keys as Datums, so that the on-disk representation depends on sizeof(Datum). That's even more unfortunate than the existing commentary makes it out to be, because now there is a hazard that the change of sizeof(Datum) will break SP-GiST indexes on 32-bit machines. It appears that there are no existing SP-GiST opclasses that are actually affected; and if there are some that I didn't find, the number of installations that are using them on 32-bit machines is doubtless tiny. So I'm proceeding on the assumption that we can get away with this, but it's something to worry about. (gininsert.c looks like it has a similar problem, but it's okay because the "tuples" it's constructing are just transient data within the tuplesort step. That's pretty poorly documented though, so I added some comments.) Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Peter Eisentraut <peter@eisentraut.org> Discussion: https://postgr.es/m/1749799.1752797397@sss.pgh.pa.us
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
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