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authorTom Lane <tgl@sss.pgh.pa.us>2011-07-05 18:21:12 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2011-07-05 18:21:28 -0400
commitc639d240c00f8d2b6684c03597b30d179d4ab31c (patch)
tree3b4c502b2127191cf670b009e2944ee080667313
parent457333d5c2f95e9448a2366dab55aab74514295c (diff)
downloadpostgresql-c639d240c00f8d2b6684c03597b30d179d4ab31c.tar.gz
postgresql-c639d240c00f8d2b6684c03597b30d179d4ab31c.zip
Call FDW validator functions even when the options list is empty.
This is useful since a validator might want to require certain options to be provided. The passed array is an empty text array in this case. Per suggestion by Laurenz Albe, though this is not quite his patch.
-rw-r--r--src/backend/commands/foreigncmds.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/backend/commands/foreigncmds.c b/src/backend/commands/foreigncmds.c
index 21d52e06ba0..643ba91bfe1 100644
--- a/src/backend/commands/foreigncmds.c
+++ b/src/backend/commands/foreigncmds.c
@@ -165,8 +165,18 @@ transformGenericOptions(Oid catalogId,
result = optionListToArray(resultOptions);
- if (OidIsValid(fdwvalidator) && DatumGetPointer(result) != NULL)
- OidFunctionCall2(fdwvalidator, result, ObjectIdGetDatum(catalogId));
+ if (OidIsValid(fdwvalidator))
+ {
+ Datum valarg = result;
+
+ /*
+ * Pass a null options list as an empty array, so that validators
+ * don't have to be declared non-strict to handle the case.
+ */
+ if (DatumGetPointer(valarg) == NULL)
+ valarg = PointerGetDatum(construct_empty_array(TEXTOID));
+ OidFunctionCall2(fdwvalidator, valarg, ObjectIdGetDatum(catalogId));
+ }
return result;
}