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

    https://github.com/apache/phoenix/pull/124#discussion_r42825749
  
    --- Diff: 
phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixRuntime.java ---
    @@ -459,19 +459,30 @@ public static ColumnInfo getColumnInfo(PTable table, 
String columnName) throws S
             return getColumnInfo(pColumn);
         }
     
    -   /**
    +    /**
          * Constructs a column info for the supplied pColumn
          * @param pColumn
          * @return columnInfo
          * @throws SQLException if the parameter is null.
          */
         public static ColumnInfo getColumnInfo(PColumn pColumn) throws 
SQLException {
    -        if (pColumn==null) {
    +        if (pColumn == null) {
                 throw new SQLException("pColumn must not be null.");
             }
             int sqlType = pColumn.getDataType().getSqlType();
    -        ColumnInfo columnInfo = new ColumnInfo(pColumn.toString(),sqlType);
    -        return columnInfo;
    +        if (pColumn.getMaxLength() == null) {
    +            return new ColumnInfo(pColumn.toString(), sqlType);
    +        }
    +        if (sqlType == Types.CHAR || sqlType == Types.VARCHAR) {
    --- End diff --
    
    @JamesRTaylor How about to move the logic above into PColumn? Then we can 
access full information in it.


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