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Commitd468e19

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Allow implicit cast from any named composite type to RECORD. At the
moment this has no particular use except to allow table rows to bepassed to record_out(), but that case seems to be useful in itselfper recent example from Elein. Further down the road we could lookat letting PL functions be declared to accept RECORD parameters.
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‎src/backend/parser/parse_coerce.c

Lines changed: 15 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
11-
* $PostgreSQL: pgsql/src/backend/parser/parse_coerce.c,v 2.127 2005/03/29 00:17:04 tgl Exp $
11+
* $PostgreSQL: pgsql/src/backend/parser/parse_coerce.c,v 2.128 2005/05/05 00:19:47 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -318,6 +318,13 @@ coerce_type(ParseState *pstate, Node *node,
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returncoerce_record_to_complex(pstate,node,targetTypeId,
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ccontext,cformat);
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}
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if (targetTypeId==RECORDOID&&
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ISCOMPLEX(inputTypeId))
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{
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/* Coerce a specific complex type to RECORD */
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/* NB: we do NOT want a RelabelType here */
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returnnode;
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}
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if (typeInheritsFrom(inputTypeId,targetTypeId))
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{
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/*
@@ -405,6 +412,13 @@ can_coerce_type(int nargs, Oid *input_typeids, Oid *target_typeids,
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ISCOMPLEX(targetTypeId))
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continue;
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/*
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* If input is a composite type and target is RECORD, accept
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*/
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if (targetTypeId==RECORDOID&&
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ISCOMPLEX(inputTypeId))
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continue;
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/*
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* If input is a class type that inherits from target, accept
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*/

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