From: | momjian(at)postgresql(dot)org (Bruce Momjian - CVS) |
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To: | pgsql-committers(at)postgresql(dot)org |
Subject: | pgsql/src/backend/parser analyze.c |
Date: | 2002-02-25 04:21:55 |
Message-ID: | 20020225042155.D26894759CF@postgresql.org |
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CVSROOT: /cvsroot
Module name: pgsql
Changes by: momjian(at)postgresql(dot)org 02/02/24 23:21:55
Modified files:
src/backend/parser: analyze.c
Log message:
This patch will allow arbitrary levels of analyze / rewriting
by making the static variables extra_before and extra_after
automatic so we can use recursion.
It gets much easier to generate extra commands now, and one can rest
assured that the extra commands will be properly analyzed/rewritten.
Without this patch, if a command produced by transformation tries to
use these static lists their first contents would be lost with
unpredictable results. I know I could fix this by just using nconc()
instead of assignments, but the resulting order of the commands would
not be exactly what one could expect.
--
Fernando Nasser
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