[GitHub] carbondata pull request #2139: [CARBONDATA-2267] [Presto] Support Reading Ca...

[chenliang613]

Github user chenliang613 commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/2139#discussion_r180554217
  
    --- Diff: 
integration/presto/src/main/java/org/apache/carbondata/presto/PrestoFilterUtil.java
 ---
    @@ -69,6 +72,13 @@
     
       private static Map<Integer, Expression> filterMap = new HashMap<>();
     
    +  private final static String HIVE_DEFAULT_DYNAMIC_PARTITION = 
"__HIVE_DEFAULT_PARTITION__";
    +  private final static String PARTITION_VALUE_WILDCARD = "";
    --- End diff --
    
    Why need to add "wildcard" for partition filter?


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