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Support type modifiers for user-defined types, and pull most knowledge

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about typmod representation for standard types out into type-specific
typmod I/O functions.  Teodor Sigaev, with some editorialization by
Tom Lane.
This commit is contained in:
Tom Lane
2006-12-30 21:21:56 +00:00
parent 24b1f14eae
commit 5725b9d9af
47 changed files with 1628 additions and 685 deletions
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56
src/backend/utils/cache/lsyscache.c vendored
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/cache/lsyscache.c,v 1.139 2006/12/23 00:43:11 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/cache/lsyscache.c,v 1.140 2006/12/30 21:21:54 tgl Exp $
*
* NOTES
* Eventually, the index information should go through here, too.
@ -2016,6 +2016,60 @@ getTypeBinaryOutputInfo(Oid type, Oid *typSend, bool *typIsVarlena)
ReleaseSysCache(typeTuple);
}
/*
* get_typmodin
*
* Given the type OID, return the type's typmodin procedure, if any.
*/
Oid
get_typmodin(Oid typid)
{
HeapTuple tp;
tp = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typid),
0, 0, 0);
if (HeapTupleIsValid(tp))
{
Form_pg_type typtup = (Form_pg_type) GETSTRUCT(tp);
Oid result;
result = typtup->typmodin;
ReleaseSysCache(tp);
return result;
}
else
return InvalidOid;
}
#ifdef NOT_USED
/*
* get_typmodout
*
* Given the type OID, return the type's typmodout procedure, if any.
*/
Oid
get_typmodout(Oid typid)
{
HeapTuple tp;
tp = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typid),
0, 0, 0);
if (HeapTupleIsValid(tp))
{
Form_pg_type typtup = (Form_pg_type) GETSTRUCT(tp);
Oid result;
result = typtup->typmodout;
ReleaseSysCache(tp);
return result;
}
else
return InvalidOid;
}
#endif /* NOT_USED */
/* ---------- STATISTICS CACHE ---------- */