refine DerviedColumn method which is dependent on the core path of qu…

…ery (#3268)
apache · Oct 15, 2019 · b849400 · b849400
1 parent f658f37
commit b849400
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/.../org/apache/shardingsphere/core/preprocessor/segment/select/projection/DerivedColumn.java b/.../org/apache/shardingsphere/core/preprocessor/segment/select/projection/DerivedColumn.java
@@ -37,7 +37,9 @@ public enum DerivedColumn {
     ORDER_BY_ALIAS("ORDER_BY_DERIVED_"), 
     GROUP_BY_ALIAS("GROUP_BY_DERIVED_"),
     AGGREGATION_DISTINCT_DERIVED("AGGREGATION_DISTINCT_DERIVED_");
-
+
+    private static final Collection<DerivedColumn> VALUES_WITHOUT_AGGREGATION_DISTINCT_DERIVED = getValues();
+
     private final String pattern;
 
     /**
@@ -72,7 +74,7 @@ public static boolean isDerivedColumnName(final String columnName) {
      * @return is derived column or not
      */
     public static boolean isDerivedColumn(final String columnName) {
-        for (DerivedColumn each : DerivedColumn.getValues()) {
+        for (DerivedColumn each : VALUES_WITHOUT_AGGREGATION_DISTINCT_DERIVED) {
             if (columnName.startsWith(each.pattern)) {
                 return true;
             }