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https://issues.apache.org/jira/browse/DRILL-5179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mehran updated DRILL-5179:
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Description:
Due to schemaless nature of drill and parquet files. It is suitable that all
NULL columns be dropped in "CREATE TABLE" command from json. This will enhance
speed of header interpretation. I think this is a big enhancement.
This can be an option in configuration parameters.
was:
Due to schemaless nature of drill and parquet files. It is suitable that all
NULL columns be dropped in "CREATE TABLE" command. This will enhance speed of
header interpretation. I think this is a simple but big enhancement.
This can be an option in configuration parameters.
Issue Type: Improvement (was: Bug)
> Dropping NULL Columns from putting in parquet files
> ---------------------------------------------------
>
> Key: DRILL-5179
> URL: https://issues.apache.org/jira/browse/DRILL-5179
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.9.0
> Reporter: mehran
> Priority: Major
>
> Due to schemaless nature of drill and parquet files. It is suitable that all
> NULL columns be dropped in "CREATE TABLE" command from json. This will
> enhance speed of header interpretation. I think this is a big enhancement.
> This can be an option in configuration parameters.
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