Horton

Re: factorial function/phase out postfix operators?

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-05-19T02:03:13Z
Lists: pgsql-hackers 
Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> What are the thoughts about then marking the postfix operator deprecated 
> and eventually removing it?

If we do this it'd require a plan.  We'd have to also warn about the
feature deprecation in (at least) the CREATE OPERATOR man page, and
we'd have to decide how many release cycles the deprecation notices
need to stand for.

If that's the intention, though, it'd be good to get those deprecation
notices published in v13 not v14.

			regards, tom lane

Commits

  1. Remove precedence hacks no longer needed without postfix operators.

  2. Allow most keywords to be used as column labels without requiring AS.

  3. Remove support for postfix (right-unary) operators.

  4. Remove factorial operators, leaving only the factorial() function.

  5. Further refine patch for commenting operator implementation functions.