diff --git a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGExprParser.java b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGExprParser.java
index 3e7cadc704..1165430d5c 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGExprParser.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGExprParser.java
@@ -88,13 +88,21 @@ public class PGExprParser extends SQLExprParser {
 
     public SQLExpr primary() {
         if (lexer.token() == Token.ARRAY) {
-            SQLArrayExpr array = new SQLArrayExpr();
-            array.setExpr(new SQLIdentifierExpr(lexer.stringVal()));
+            String ident = lexer.stringVal();
             lexer.nextToken();
-            accept(Token.LBRACKET);
-            this.exprList(array.getValues(), array);
-            accept(Token.RBRACKET);
-            return primaryRest(array);
+
+            if (lexer.token() == Token.LPAREN) {
+                SQLIdentifierExpr array = new SQLIdentifierExpr(ident);
+                return this.methodRest(array, true);
+            } else {
+                SQLArrayExpr array = new SQLArrayExpr();
+                array.setExpr(new SQLIdentifierExpr(ident));
+                accept(Token.LBRACKET);
+                this.exprList(array.getValues(), array);
+                accept(Token.RBRACKET);
+                return primaryRest(array);
+            }
+
         } else if (lexer.token() == Token.POUND) {
             lexer.nextToken();
             if (lexer.token() == Token.LBRACE) {
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/select/PGSelectTest62_json.java b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/select/PGSelectTest62_json.java
new file mode 100644
index 0000000000..895cf595d1
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/select/PGSelectTest62_json.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.sql.postgresql.select;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
+import com.alibaba.druid.util.JdbcConstants;
+import junit.framework.TestCase;
+
+import java.util.List;
+
+public class PGSelectTest62_json extends TestCase {
+    private final String dbType = JdbcConstants.POSTGRESQL;
+
+    public void test_0() throws Exception {
+        String sql = "select array_to_string(array ( select jsonb_array_elements ( '[{\"aa\":\"123\",\"bb\":\"123\"},{\"aa\":\"12356\",\"bb\":\"12356\"}]') ->> 'aa' ) ,',') as aa";
+
+        List<SQLStatement> stmtList = SQLUtils.parseStatements(sql, dbType);
+        SQLStatement stmt = stmtList.get(0);
+
+        assertEquals("SELECT array_to_string(array((\n" +
+                "\t\tSELECT jsonb_array_elements('[{\"aa\":\"123\",\"bb\":\"123\"},{\"aa\":\"12356\",\"bb\":\"12356\"}]') ->> 'aa'\n" +
+                "\t)), ',') AS aa", SQLUtils.toPGString(stmt));
+        
+        assertEquals("select array_to_string(array((\n" +
+                "\t\tselect jsonb_array_elements('[{\"aa\":\"123\",\"bb\":\"123\"},{\"aa\":\"12356\",\"bb\":\"12356\"}]') ->> 'aa'\n" +
+                "\t)), ',') as aa", SQLUtils.toPGString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
+
+        assertEquals(1, stmtList.size());
+
+        SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(dbType);
+        stmt.accept(visitor);
+
+//        System.out.println("Tables : " + visitor.getTables());
+//        System.out.println("fields : " + visitor.getColumns());
+//        System.out.println("coditions : " + visitor.getConditions());
+
+        assertEquals(0, visitor.getColumns().size());
+        assertEquals(0, visitor.getTables().size());
+    }
+}