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Create a new parsetree node type, TypeCast, so that transformation of

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SQL cast constructs can be performed during expression transformation
instead of during parsing.  This allows constructs like x::numeric(9,2)
and x::int2::float8 to behave as one would expect.
This commit is contained in:
Tom Lane
2000-01-17 00:14:49 +00:00
parent e0bd60171a
commit 49528361f5
10 changed files with 242 additions and 132 deletions
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8
src/include/parser/parse_coerce.h
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@@ -2,11 +2,11 @@
*
* parse_coerce.h
*
*
* Routines for type coercion.
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_coerce.h,v 1.15 1999/07/16 17:07:36 momjian Exp $
* $Id: parse_coerce.h,v 1.16 2000/01/17 00:14:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -125,6 +125,8 @@ extern CATEGORY TypeCategory(Oid type);
extern bool can_coerce_type(int nargs, Oid *input_typeids, Oid *func_typeids);
extern Node *coerce_type(ParseState *pstate, Node *node, Oid inputTypeId,
Oid targetTypeId, int32 atttypmod);
Oid targetTypeId, int32 atttypmod);
extern Node *coerce_type_typmod(ParseState *pstate, Node *node,
Oid targetTypeId, int32 atttypmod);
#endif /* PARSE_COERCE_H */