pgsql: Refactor unit conversions code in guc.c.

From: Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Refactor unit conversions code in guc.c.
Date: 2015-02-23 16:06:27
Message-ID: E1YPvWd-0006Ce-5X@gemulon.postgresql.org
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Refactor unit conversions code in guc.c.

Replace the if-switch-case constructs with two conversion tables,
containing all the supported conversions between human-readable unit
strings and the base units used in GUC variables. This makes the code
easier to read, and makes adding new units simpler.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/1b6302647302f459fdb63008c3842a1b0d43d1b7

Modified Files
--------------
src/backend/utils/misc/guc.c | 431 +++++++++++++++++++-----------------------
src/include/utils/guc.h | 2 +
2 files changed, 193 insertions(+), 240 deletions(-)

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