Horton

Re: Proposed refactoring of planner header files

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2019-01-28T21:12:31Z
Lists: pgsql-hackers 
Hi,

On 2019-01-28 13:02:11 -0800, Andres Freund wrote:
> It's not required by C99, it however is required by C11. But a lot of
> compilers have allowed it as an extension for a long time (like before
> C99), unless suppressed by some option. I think that's partially because
> C++ has allowed it for longer.  I don't know how many of the BF
> compilers could be made to accept that - I'd be very suprised if yours couldn't.

Hm, it's only in gcc 4.6, so that's probably too recent.

Greetings,

Andres Freund

Commits

  1. Refactor index cost estimation functions in view of IndexClause changes.

  2. Simplify the planner's new representation of indexable clauses a little.

  3. Move pattern selectivity code from selfuncs.c to like_support.c.

  4. Refactor planner's header files.

  5. Make some small planner API cleanups.