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https://issues.apache.org/jira/browse/PIG-3961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Welch updated PIG-3961:
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Attachment: (was: filters-patch.diff)
> Adding HBaseStorage cell value filters
> --------------------------------------
>
> Key: PIG-3961
> URL: https://issues.apache.org/jira/browse/PIG-3961
> Project: Pig
> Issue Type: New Feature
> Reporter: Mike Welch
> Assignee: Mike Welch
> Priority: Minor
> Fix For: 0.14.0
>
> Attachments: filters-patch.v2.diff
>
>
> Adding three additional server side filtering options when loading data with
> HBaseStorage:
> # specified cf:col does not exist
> {{-null cf:col}}
> # specified cf:col must exist
> {{-notnull cf:col}}
> # specified cf:col contains the given value
> {{-val cf:col=value}}
> These are meant to replace (and optimize by reducing data transfer) the
> frequent paradigm in pig of loading data and immediately filtering for a
> specific condition. For example
> data = load 'hbase://mytable' using
> org.apache.pig.backend.hadoop.hbase.HBaseStorage('cf:*') as (cf:map[]) ;
> data_with_value = filter data by cf#'col' = 'value' ;
> Can be replaced with:
> data_with_value = load 'hbase://mytable' using
> org.apache.pig.backend.hadoop.hbase.HBaseStorage('cf:*', '-val cf:col=value')
> as (cf:map[]) ;
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