diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index 140b3bd12e..47512f73df 100644
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -1069,12 +1069,6 @@ SELECT (5 !) - 6;
all other native and user-defined operators
-
- OVERLAPS
-
- time interval overlap
-
-
BETWEEN IN LIKE ILIKE SIMILAR
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 4e02f7d73f..3b5cef4ff4 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -673,7 +673,6 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
%nonassoc '<' '>' '=' LESS_EQUALS GREATER_EQUALS NOT_EQUALS
%nonassoc BETWEEN IN_P LIKE ILIKE SIMILAR NOT_LA
%nonassoc ESCAPE /* ESCAPE must be just above LIKE/ILIKE/SIMILAR */
-%nonassoc OVERLAPS
%left POSTFIXOP /* dummy for postfix Op rules */
/*
* To support target_el without AS, we must give IDENT an explicit priority