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Diffstat (limited to 'src/include/nodes/nodeFuncs.h')
-rw-r--r--src/include/nodes/nodeFuncs.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/include/nodes/nodeFuncs.h b/src/include/nodes/nodeFuncs.h
index 591f2a9ca03..4980dd8f12c 100644
--- a/src/include/nodes/nodeFuncs.h
+++ b/src/include/nodes/nodeFuncs.h
@@ -26,17 +26,17 @@
#define QTW_DONT_COPY_QUERY 0x20 /* do not copy top Query */
-extern Oid exprType(Node *expr);
-extern int32 exprTypmod(Node *expr);
-extern bool exprIsLengthCoercion(Node *expr, int32 *coercedTypmod);
+extern Oid exprType(const Node *expr);
+extern int32 exprTypmod(const Node *expr);
+extern bool exprIsLengthCoercion(const Node *expr, int32 *coercedTypmod);
extern bool expression_returns_set(Node *clause);
-extern Oid exprCollation(Node *expr);
-extern Oid exprInputCollation(Node *expr);
+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(Node *expr);
+extern int exprLocation(const Node *expr);
extern bool expression_tree_walker(Node *node, bool (*walker) (),
void *context);