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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2011-02-19 00:06:18 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2011-02-19 00:07:15 -0500 |
| commit | 327e0250716f12fe94b62669d25e572b40a8fba5 (patch) | |
| tree | c6ecb8e9ee8237141cff20c89cd35438cb0200ee /src/backend/utils/adt | |
| parent | 4077980d67a2f27b88a6bc7531da31cae0ed0fb1 (diff) | |
Create the catalog infrastructure for foreign-data-wrapper handlers.
Add a fdwhandler column to pg_foreign_data_wrapper, plus HANDLER options
in the CREATE FOREIGN DATA WRAPPER and ALTER FOREIGN DATA WRAPPER commands,
plus pg_dump support for same. Also invent a new pseudotype fdw_handler
with properties similar to language_handler.
This is split out of the "FDW API" patch for ease of review; it's all stuff
we will certainly need, regardless of any other details of the FDW API.
FDW handler functions will not actually get called yet.
In passing, fix some omissions and infelicities in foreigncmds.c.
Shigeru Hanada, Jan Urbanski, Heikki Linnakangas
Diffstat (limited to 'src/backend/utils/adt')
| -rw-r--r-- | src/backend/utils/adt/pseudotypes.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/backend/utils/adt/pseudotypes.c b/src/backend/utils/adt/pseudotypes.c index 2be0696f609..d9329f83428 100644 --- a/src/backend/utils/adt/pseudotypes.c +++ b/src/backend/utils/adt/pseudotypes.c @@ -268,6 +268,33 @@ language_handler_out(PG_FUNCTION_ARGS) /* + * fdw_handler_in - input routine for pseudo-type FDW_HANDLER. + */ +Datum +fdw_handler_in(PG_FUNCTION_ARGS) +{ + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot accept a value of type fdw_handler"))); + + PG_RETURN_VOID(); /* keep compiler quiet */ +} + +/* + * fdw_handler_out - output routine for pseudo-type FDW_HANDLER. + */ +Datum +fdw_handler_out(PG_FUNCTION_ARGS) +{ + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot display a value of type fdw_handler"))); + + PG_RETURN_VOID(); /* keep compiler quiet */ +} + + +/* * internal_in - input routine for pseudo-type INTERNAL. */ Datum |