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postgres/src/include/parser/parse_param.h

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Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
16 years ago
/*-------------------------------------------------------------------------
*
* parse_param.h
* handle parameters in parser
*
Update copyright via script for 2017
9 years ago
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
16 years ago
* Portions Copyright (c) 1994, Regents of the University of California
*
Remove cvs keywords from all files.
16 years ago
* src/include/parser/parse_param.h
Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
16 years ago
*
*-------------------------------------------------------------------------
*/
#ifndef PARSE_PARAM_H
#define PARSE_PARAM_H
#include "parser/parse_node.h"
extern void parse_fixed_parameters(ParseState *pstate,
pgindent run for 9.0
16 years ago
Oid *paramTypes, int numParams);
Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
16 years ago
extern void parse_variable_parameters(ParseState *pstate,
pgindent run for 9.0
16 years ago
Oid **paramTypes, int *numParams);
Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
16 years ago
extern void check_variable_parameters(ParseState *pstate, Query *query);
Clean up the mess around EXPLAIN and materialized views. Revert the matview-related changes in explain.c's API, as per recent complaint from Robert Haas. The reason for these appears to have been principally some ill-considered choices around having intorel_startup do what ought to be parse-time checking, plus a poor arrangement for passing it the view parsetree it needs to store into pg_rewrite when creating a materialized view. Do the latter by having parse analysis stick a copy into the IntoClause, instead of doing it at runtime. (On the whole, I seriously question the choice to represent CREATE MATERIALIZED VIEW as a variant of SELECT INTO/CREATE TABLE AS, because that means injecting even more complexity into what was already a horrid legacy kluge. However, I didn't go so far as to rethink that choice ... yet.) I also moved several error checks into matview parse analysis, and made the check for external Params in a matview more accurate. In passing, clean things up a bit more around interpretOidsOption(), and fix things so that we can use that to force no-oids for views, sequences, etc, thereby eliminating the need to cons up "oids = false" options when creating them. catversion bump due to change in IntoClause. (I wonder though if we really need readfuncs/outfuncs support for IntoClause anymore.)
13 years ago
extern bool query_contains_extern_params(Query *query);
Implement parser hooks for processing ColumnRef and ParamRef nodes, as per my recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
16 years ago
#endif /* PARSE_PARAM_H */