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From "zzc (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-6432) Cannot load parquet data with partitions if not all partition columns match data columns
Date Fri, 20 Mar 2015 09:48:38 GMT

    [ https://issues.apache.org/jira/browse/SPARK-6432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14371052#comment-14371052
] 

zzc commented on SPARK-6432:
----------------------------

[~liancheng], My data schema has the following columns:
root
 |-- ltype: integer (nullable = false)
 |-- chan: string (nullable = false)
 |-- ts: integer (nullable = false)
 |-- cip: string (nullable = false)
 |-- rt: string (nullable = false)
 |-- date: string (nullable = false)
 |-- time: string (nullable = false)
 |-- host: string (nullable = false)
 |-- ratio: integer (nullable = false)
 |-- size: long (nullable = false)
 |-- code: integer (nullable = false)
 |-- dltime: long (nullable = false)
 |-- cache: string (nullable = false)
 |-- bsize: long (nullable = false)
 |-- upsize: long (nullable = false)
 |-- url: string (nullable = false)
 |-- referer: string (nullable = false)
 |-- ua: string (nullable = false)

puser column appeared in the path don't exist in the data files. 

> Cannot load parquet data with partitions if not all partition columns match data columns
> ----------------------------------------------------------------------------------------
>
>                 Key: SPARK-6432
>                 URL: https://issues.apache.org/jira/browse/SPARK-6432
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.3.0, 1.3.1
>            Reporter: Jianshi Huang
>            Assignee: Cheng Lian
>
> Suppose we have a dataset in the following folder structure:
> {noformat}
> parquet/source=live/date=2015-03-18/
> parquet/source=live/date=2015-03-19/
> ...
> {noformat}
> And the data schema has the following columns:
> - id
> - *event_date*
> - source
> - value
> Where partition key source matches data column source, but partition key date doesn't
match any columns in data.
> Then we cannot load dataset in Spark using parquetFile. It reports:
> {code}
> org.apache.spark.sql.AnalysisException: Ambiguous references to source: (source#2,List()),(source#5,List());
> ...
> {code}
> Currently if partition columns has overlaps with data columns, partition columns have
to be a subset of the data columns.
> Jianshi



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