Re: Unused header file inclusion

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: vignesh C <vignesh21@gmail.com>
Cc: Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2019-07-31T05:56:30Z
Lists: pgsql-hackers
On Wed, Jul 31, 2019 at 11:19:08AM +0530, vignesh C wrote:
> I noticed that there are many header files being included which need
> not be included.  I have tried this in a few files and found the
> compilation and regression to be working.  I have attached the patch
> for the files that  I tried.  I tried this in CentOS, I did not find
> the header files to be platform specific.
> Should we pursue this further and cleanup in all the files?

Do you use a particular method here or just manual deduction after
looking at each file individually?  If this can be cleaned up a bit, I
think that's welcome.  The removal of headers is easily forgotten when
moving code from one file to another...
--
Michael

Commits

  1. Add fmgr.h include to selfuncs.h.

  2. Add "headerscheck" script to test header-file compilability under C.

  3. Fix failure-to-compile-standalone in scripts_parallel.h.

  4. Remove fmgr.h includes from headers that don't really need it.

  5. Don't include utils/array.h from acl.h.

  6. Remove redundant prototypes for SQL callable functions.

  7. Remove unnecessary #include <limits.h>

  8. Teach tuplesort.c about "top N" sorting, in which only the first N tuples