60 lines
2.6 KiB
C
Executable File
60 lines
2.6 KiB
C
Executable File
/* -------------------------------------------------------------------------
|
|
*
|
|
* nodeFuncs.h
|
|
* Various general-purpose manipulations of Node trees
|
|
*
|
|
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* src/include/nodes/nodeFuncs.h
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
#ifndef NODEFUNCS_H
|
|
#define NODEFUNCS_H
|
|
|
|
#include "nodes/parsenodes.h"
|
|
#include "nodes/plannodes.h"
|
|
|
|
/* flags bits for query_tree_walker and query_tree_mutator */
|
|
#define QTW_IGNORE_RT_SUBQUERIES 0x01 /* subqueries in rtable */
|
|
#define QTW_IGNORE_CTE_SUBQUERIES 0x02 /* subqueries in cteList */
|
|
#define QTW_IGNORE_RC_SUBQUERIES 0x03 /* both of above */
|
|
#define QTW_IGNORE_JOINALIASES 0x04 /* JOIN alias var lists */
|
|
#define QTW_IGNORE_RANGE_TABLE 0x08 /* skip rangetable entirely */
|
|
#define QTW_EXAMINE_RTES 0x10 /* examine RTEs */
|
|
#define QTW_DONT_COPY_QUERY 0x20 /* do not copy top Query */
|
|
#define QTW_IGNORE_DUMMY 0x40 /* remote dummy */
|
|
|
|
extern Oid exprType(const Node* expr);
|
|
extern int32 exprTypmod(const Node* expr);
|
|
extern bool exprIsLengthCoercion(const Node* expr, int32* coercedTypmod);
|
|
extern Node* relabel_to_typmod(Node* expr, int32 typmod);
|
|
extern bool expression_returns_set(Node* clause);
|
|
|
|
extern Oid exprCollation(const Node* expr);
|
|
extern Oid exprInputCollation(const Node* expr);
|
|
extern void exprSetCollation(Node* expr, Oid collation);
|
|
extern void exprSetInputCollation(Node* expr, Oid inputcollation);
|
|
|
|
extern int exprLocation(const Node* expr);
|
|
|
|
extern bool expression_tree_walker(Node* node, bool (*walker)(), void* context);
|
|
extern Node* expression_tree_mutator(Node* node, Node* (*mutator)(Node*, void*), void* context, bool isCopy = true);
|
|
|
|
extern bool query_tree_walker(Query* query, bool (*walker)(), void* context, int flags);
|
|
extern Query* query_tree_mutator(Query* query, Node* (*mutator)(Node*, void*), void* context, int flags);
|
|
|
|
extern bool range_table_walker(List* rtable, bool (*walker)(), void* context, int flags);
|
|
extern List* range_table_mutator(List* rtable, Node* (*mutator)(Node*, void*), void* context, int flags);
|
|
|
|
extern bool query_or_expression_tree_walker(Node* node, bool (*walker)(), void* context, int flags);
|
|
extern Node* query_or_expression_tree_mutator(Node* node, Node* (*mutator)(Node*, void*), void* context, int flags);
|
|
|
|
extern bool raw_expression_tree_walker(Node* node, bool (*walker)(), void* context);
|
|
extern bool is_func_distinct_unshippable(Oid funcid);
|
|
|
|
extern bool lockNextvalWalker(Node* node, void* context);
|
|
|
|
#endif /* NODEFUNCS_H */
|