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20ab467d76
during parse analysis, not only errors detected in the flex/bison stages. This is per my earlier proposal. This commit includes all the basic infrastructure, but locations are only tracked and reported for errors involving column references, function calls, and operators. More could be done later but this seems like a good set to start with. I've also moved the ReportSyntaxErrorPosition logic out of psql and into libpq, which should make it available to more people --- even within psql this is an improvement because warnings weren't handled by ReportSyntaxErrorPosition.
71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/*-------------------------------------------------------------------------
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*
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* parse_oper.h
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* handle operator things for parser
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*
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*
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* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/parser/parse_oper.h,v 1.39 2006/03/14 22:48:22 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSE_OPER_H
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#define PARSE_OPER_H
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#include "access/htup.h"
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#include "parser/parse_node.h"
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typedef HeapTuple Operator;
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/* Routines to look up an operator given name and exact input type(s) */
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extern Oid LookupOperName(ParseState *pstate, List *opername,
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Oid oprleft, Oid oprright,
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bool noError, int location);
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extern Oid LookupOperNameTypeNames(ParseState *pstate, List *opername,
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TypeName *oprleft, TypeName *oprright,
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bool noError, int location);
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/* Routines to find operators matching a name and given input types */
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/* NB: the selected operator may require coercion of the input types! */
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extern Operator oper(ParseState *pstate, List *op, Oid arg1, Oid arg2,
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bool noError, int location);
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extern Operator right_oper(ParseState *pstate, List *op, Oid arg,
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bool noError, int location);
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extern Operator left_oper(ParseState *pstate, List *op, Oid arg,
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bool noError, int location);
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/* Routines to find operators that DO NOT require coercion --- ie, their */
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/* input types are either exactly as given, or binary-compatible */
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extern Operator compatible_oper(ParseState *pstate, List *op,
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Oid arg1, Oid arg2,
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bool noError, int location);
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/* currently no need for compatible_left_oper/compatible_right_oper */
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/* Routines for identifying "=", "<", ">" operators for a type */
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extern Operator equality_oper(Oid argtype, bool noError);
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extern Operator ordering_oper(Oid argtype, bool noError);
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extern Operator reverse_ordering_oper(Oid argtype, bool noError);
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/* Convenience routines for common calls on the above */
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extern Oid compatible_oper_opid(List *op, Oid arg1, Oid arg2, bool noError);
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extern Oid equality_oper_funcid(Oid argtype);
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extern Oid ordering_oper_opid(Oid argtype);
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extern Oid reverse_ordering_oper_opid(Oid argtype);
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/* Extract operator OID or underlying-function OID from an Operator tuple */
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extern Oid oprid(Operator op);
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extern Oid oprfuncid(Operator op);
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/* Build expression tree for an operator invocation */
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extern Expr *make_op(ParseState *pstate, List *opname,
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Node *ltree, Node *rtree, int location);
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extern Expr *make_scalar_array_op(ParseState *pstate, List *opname,
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bool useOr,
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Node *ltree, Node *rtree, int location);
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#endif /* PARSE_OPER_H */
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