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Infrastructure for I/O of composite types: arrange for the I/O routines

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of a composite type to get that type's OID as their second parameter,
in place of typelem which is useless.  The actual changes are mostly
centralized in getTypeInputInfo and siblings, but I had to fix a few
places that were fetching pg_type.typelem for themselves instead of
using the lsyscache.c routines.  Also, I renamed all the related variables
from 'typelem' to 'typioparam' to discourage people from assuming that
they necessarily contain array element types.
This commit is contained in:
Tom Lane
2004-06-06 00:41:28 +00:00
parent c3a153afed
commit c541bb86e9
25 changed files with 332 additions and 382 deletions
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22
src/backend/executor/nodeAgg.c
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@ -45,7 +45,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeAgg.c,v 1.121 2004/05/30 23:40:26 neilc Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeAgg.c,v 1.122 2004/06/06 00:41:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1357,29 +1357,17 @@ ExecInitAgg(Agg *node, EState *estate)
static Datum
GetAggInitVal(Datum textInitVal, Oid transtype)
{
char *strInitVal;
HeapTuple tup;
Oid typinput,
typelem;
typioparam;
char *strInitVal;
Datum initVal;
getTypeInputInfo(transtype, &typinput, &typioparam);
strInitVal = DatumGetCString(DirectFunctionCall1(textout, textInitVal));
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(transtype),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "cache lookup failed for type %u", transtype);
typinput = ((Form_pg_type) GETSTRUCT(tup))->typinput;
typelem = ((Form_pg_type) GETSTRUCT(tup))->typelem;
ReleaseSysCache(tup);
initVal = OidFunctionCall3(typinput,
CStringGetDatum(strInitVal),
ObjectIdGetDatum(typelem),
ObjectIdGetDatum(typioparam),
Int32GetDatum(-1));
pfree(strInitVal);
return initVal;
}