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https://issues.apache.org/jira/browse/DRILL-4120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16388255#comment-16388255
 ] 

ASF GitHub Bot commented on DRILL-4120:
---------------------------------------

Github user arina-ielchiieva commented on a diff in the pull request:

    https://github.com/apache/drill/pull/1138#discussion_r172606895
  
    --- Diff: 
exec/java-exec/src/main/java/org/apache/drill/exec/planner/types/ExtendableRelDataTypeHolder.java
 ---
    @@ -0,0 +1,82 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements.  See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to you 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 org.apache.drill.exec.planner.types;
    +
    +import org.apache.calcite.rel.type.RelDataTypeFactory;
    +import org.apache.calcite.rel.type.RelDataTypeField;
    +import org.apache.calcite.rel.type.RelDataTypeFieldImpl;
    +import org.apache.calcite.sql.type.SqlTypeName;
    +
    +import java.util.List;
    +
    +/**
    + * Holder for list of RelDataTypeField which may be expanded by partition 
or implicit columns.
    --- End diff --
    
    When this holder is extended with partition columns? I can see only 
implicit.


> dir0 does not work when the directory structure contains Avro files
> -------------------------------------------------------------------
>
>                 Key: DRILL-4120
>                 URL: https://issues.apache.org/jira/browse/DRILL-4120
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 1.3.0
>            Reporter: Stefán Baxter
>            Assignee: Volodymyr Vysotskyi
>            Priority: Major
>             Fix For: 1.13.0
>
>         Attachments: 
> 0001-DRILL-4120-Support-reading-directories-having-avro-f.patch
>
>
> Any select statment containing dirN fails if the target directory structure 
> contains Avro files.
> Steps to test:
> 1. create a simple directory structure
> 2. copy an avro file into each directory
> 3. execute a query containing dir0
> outcome:
> Error: VALIDATION ERROR: From line 1, column 117 to line 1, column 120: 
> Column 'dir0' not found in any table



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