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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-6174) Parquet pushdown planning improvements
Date Mon, 26 Feb 2018 15:46:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-6174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16377058#comment-16377058
] 

ASF GitHub Bot commented on DRILL-6174:
---------------------------------------

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

    https://github.com/apache/drill/pull/1131#discussion_r170633434
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/expr/stat/ParquetPredicates.java
---
    @@ -66,6 +66,27 @@ public ParquetBooleanPredicate(String name, List<LogicalExpression>
args, Expres
         }
       }
     
    +  public static abstract class ParquetIsPredicate extends LogicalExpressionBase implements
ParquetFilterPredicate {
    --- End diff --
    
    `ParquetPredicates` class becomes too overloaded. Please split it into two: `ParquetComparisionPredicates`
and `ParquetIsPredicate`.


> Parquet pushdown planning improvements
> --------------------------------------
>
>                 Key: DRILL-6174
>                 URL: https://issues.apache.org/jira/browse/DRILL-6174
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.12.0
>            Reporter: Arina Ielchiieva
>            Assignee: Roman Kulyk
>            Priority: Major
>              Labels: doc-impacting
>             Fix For: 1.13.0
>
>
> Currently parquet pushdown planning has certain limitations (https://drill.apache.org/docs/parquet-filter-pushdown/).
This Jira aims to fix some of them. List of improvements can be find below:
> 1. IS [NOT] NULL / TRUE / FALSE
> 2. Timestamp / date / time implicit / explicit casts
> {noformat}
> timestamp -> date
> timestamp -> varchar
> date -> timestamp
> date -> varchar
> time -> timestamp
> time -> date
> time -> varchar
> {noformat}



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