diff --git a/sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 b/sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
index 128f820728ee8..ef5648c6dbe47 100644
--- a/sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
+++ b/sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
@@ -563,6 +563,7 @@ primaryExpression
     | CAST '(' expression AS dataType ')'                                                      #cast
     | FIRST '(' expression (IGNORE NULLS)? ')'                                                 #first
     | LAST '(' expression (IGNORE NULLS)? ')'                                                  #last
+    | POSITION '(' substr=valueExpression IN str=valueExpression ')'                           #position
     | constant                                                                                 #constantDefault
     | ASTERISK                                                                                 #star
     | qualifiedName '.' ASTERISK                                                               #star
@@ -574,7 +575,6 @@ primaryExpression
     | identifier                                                                               #columnReference
     | base=primaryExpression '.' fieldName=identifier                                          #dereference
     | '(' expression ')'                                                                       #parenthesizedExpression
-    | POSITION '(' valueExpression IN valueExpression ')'                                      #position
     ;
 
 constant
@@ -852,7 +852,6 @@ MACRO: 'MACRO';
 IGNORE: 'IGNORE';
 
 IF: 'IF';
-
 POSITION: 'POSITION';
 
 EQ  : '=' | '==';
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
index 3e3d2fcb44163..717ada225a4f1 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
@@ -658,7 +658,7 @@ case class SubstringIndex(strExpr: Expression, delimExpr: Expression, countExpr:
        4
       > SELECT _FUNC_('bar', 'foobarbar', 5);
        7
-      > SELECT POSITION('bar' in 'foobarbar');
+      > SELECT POSITION('bar' IN 'foobarbar');
        4
   """)
 // scalastyle:on line.size.limit
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
index 758df980c4d99..500d999c30da7 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
@@ -1080,7 +1080,7 @@ class AstBuilder(conf: SQLConf) extends SqlBaseBaseVisitor[AnyRef] with Logging
    * Create a Position expression.
    */
   override def visitPosition(ctx: PositionContext): Expression = withOrigin(ctx) {
-    StringLocate(expression(ctx.valueExpression(0)), expression(ctx.valueExpression(1)), Literal(1))
+    new StringLocate(expression(ctx.substr), expression(ctx.str))
   }
 
   /**
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/TableIdentifierParserSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/TableIdentifierParserSuite.scala
index f33abc5b2e049..76be6ee3f50bc 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/TableIdentifierParserSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/TableIdentifierParserSuite.scala
@@ -51,7 +51,7 @@ class TableIdentifierParserSuite extends SparkFunSuite {
     "rollup", "row", "rows", "set", "smallint", "table", "timestamp", "to", "trigger",
     "true", "truncate", "update", "user", "values", "with", "regexp", "rlike",
     "bigint", "binary", "boolean", "current_date", "current_timestamp", "date", "double", "float",
-    "int", "smallint", "timestamp", "at")
+    "int", "smallint", "timestamp", "at", "position")
 
   val hiveStrictNonReservedKeyword = Seq("anti", "full", "inner", "left", "semi", "right",
     "natural", "union", "intersect", "except", "database", "on", "join", "cross", "select", "from",