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Clean up representation of function RTEs for functions returning RECORD.

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The original coding stored the raw parser output (ColumnDef and TypeName
nodes) which was ugly, bulky, and wrong because it failed to create any
dependency on the referenced datatype --- and in fact would not track type
renamings and suchlike.  Instead store a list of column type OIDs in the
RTE.

Also fix up general failure of recordDependencyOnExpr to do anything sane
about recording dependencies on datatypes.  While there are many cases where
there will be an indirect dependency (eg if an operator returns a datatype,
the dependency on the operator is enough), we do have to record the datatype
as a separate dependency in examples like CoerceToDomain.

initdb forced because of change of stored rules.
This commit is contained in:
Tom Lane
2006-03-16 00:31:55 +00:00
parent 5981b9d03e
commit 2316013961
13 changed files with 249 additions and 145 deletions
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14
src/include/nodes/parsenodes.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.304 2006/03/14 22:48:22 tgl Exp $
* $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.305 2006/03/16 00:31:55 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -362,8 +362,8 @@ typedef struct RangeFunction
NodeTag type;
Node *funccallnode; /* untransformed function call tree */
Alias *alias; /* table alias & optional column aliases */
List *coldeflist; /* list of ColumnDef nodes for runtime
* assignment of RECORD TupleDesc */
List *coldeflist; /* list of ColumnDef nodes to describe
* result of function returning RECORD */
} RangeFunction;
/*
@@ -547,10 +547,14 @@ typedef struct RangeTblEntry
/*
* Fields valid for a function RTE (else NULL):
*
* If the function returns RECORD, funccoltypes lists the column types
* declared in the RTE's column type specification, and funccoltypmods
* lists their declared typmods. Otherwise, both fields are NIL.
*/
Node *funcexpr; /* expression tree for func call */
List *coldeflist; /* list of ColumnDef nodes for runtime
* assignment of RECORD TupleDesc */
List *funccoltypes; /* OID list of column type OIDs */
List *funccoltypmods; /* integer list of column typmods */
/*
* Fields valid for a join RTE (else NULL/zero):