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Add DOMAIN support. Includes manual pages and regression tests, from

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Rod Taylor.
This commit is contained in:
Bruce Momjian
2002-03-19 02:18:25 +00:00
parent 525b19399c
commit d3788c3305
36 changed files with 1805 additions and 286 deletions
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31
src/backend/parser/parse_coerce.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.66 2002/03/07 16:35:35 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.67 2002/03/19 02:18:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -605,3 +605,32 @@ PreferredType(CATEGORY category, Oid type)
}
return result;
} /* PreferredType() */
/*
* If the targetTypeId is a domain, we really want to coerce
* the tuple to the domain type -- not the domain itself
*/
Oid
getBaseType(Oid inType)
{
HeapTuple tup;
Form_pg_type typTup;
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(inType),
0, 0, 0);
typTup = ((Form_pg_type) GETSTRUCT(tup));
/*
* Assume that typbasetype exists and is a base type, where inType
* was a domain
*/
if (typTup->typtype == 'd')
inType = typTup->typbasetype;
ReleaseSysCache(tup);
return inType;
}