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pgsql: Add GetForeignColumnOptions() to foreign.c,and add some documen

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Add GetForeignColumnOptions() to foreign.c,and add some documen
Date: 2012-03-07 23:21:10
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Lists: pgsql-committers
Add GetForeignColumnOptions() to foreign.c, and add some documentation.

GetForeignColumnOptions provides some abstraction for accessing
column-specific FDW options, on a par with the access functions that were
already provided here for other FDW-related information.

Adjust file_fdw.c to use GetForeignColumnOptions instead of equivalent
hand-rolled code.

In addition, add some SGML documentation for the functions exported by
foreign.c that are meant for use by FDW authors.

(This is the fdw_helper portion of the proposed pgsql_fdw patch.)

Hanada Shigeru, reviewed by KaiGai Kohei



Modified Files
contrib/file_fdw/file_fdw.c   |   49 +++++--------------
doc/src/sgml/fdwhandler.sgml  |  105 +++++++++++++++++++++++++++++++++++++++++
src/backend/foreign/foreign.c |   37 ++++++++++++++-
src/include/foreign/foreign.h |    2 +
4 files changed, 154 insertions(+), 39 deletions(-)

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