diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/include/parser/parse_oper.h | |
parent | Initial commit. (diff) | |
download | postgresql-13-upstream.tar.xz postgresql-13-upstream.zip |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/parser/parse_oper.h')
-rw-r--r-- | src/include/parser/parse_oper.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/include/parser/parse_oper.h b/src/include/parser/parse_oper.h new file mode 100644 index 0000000..bcd861e --- /dev/null +++ b/src/include/parser/parse_oper.h @@ -0,0 +1,67 @@ +/*------------------------------------------------------------------------- + * + * parse_oper.h + * handle operator things for parser + * + * + * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/parser/parse_oper.h + * + *------------------------------------------------------------------------- + */ +#ifndef PARSE_OPER_H +#define PARSE_OPER_H + +#include "access/htup.h" +#include "nodes/parsenodes.h" +#include "parser/parse_node.h" + + +typedef HeapTuple Operator; + +/* Routines to look up an operator given name and exact input type(s) */ +extern Oid LookupOperName(ParseState *pstate, List *opername, + Oid oprleft, Oid oprright, + bool noError, int location); +extern Oid LookupOperWithArgs(ObjectWithArgs *oper, bool noError); + +/* Routines to find operators matching a name and given input types */ +/* NB: the selected operator may require coercion of the input types! */ +extern Operator oper(ParseState *pstate, List *op, Oid arg1, Oid arg2, + bool noError, int location); +extern Operator right_oper(ParseState *pstate, List *op, Oid arg, + bool noError, int location); +extern Operator left_oper(ParseState *pstate, List *op, Oid arg, + bool noError, int location); + +/* Routines to find operators that DO NOT require coercion --- ie, their */ +/* input types are either exactly as given, or binary-compatible */ +extern Operator compatible_oper(ParseState *pstate, List *op, + Oid arg1, Oid arg2, + bool noError, int location); + +/* currently no need for compatible_left_oper/compatible_right_oper */ + +/* Routines for identifying "<", "=", ">" operators for a type */ +extern void get_sort_group_operators(Oid argtype, + bool needLT, bool needEQ, bool needGT, + Oid *ltOpr, Oid *eqOpr, Oid *gtOpr, + bool *isHashable); + +/* Convenience routines for common calls on the above */ +extern Oid compatible_oper_opid(List *op, Oid arg1, Oid arg2, bool noError); + +/* Extract operator OID or underlying-function OID from an Operator tuple */ +extern Oid oprid(Operator op); +extern Oid oprfuncid(Operator op); + +/* Build expression tree for an operator invocation */ +extern Expr *make_op(ParseState *pstate, List *opname, + Node *ltree, Node *rtree, Node *last_srf, int location); +extern Expr *make_scalar_array_op(ParseState *pstate, List *opname, + bool useOr, + Node *ltree, Node *rtree, int location); + +#endif /* PARSE_OPER_H */ |