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From "Ferdy Galema (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GORA-119) implement a filter enabled scan in gora
Date Thu, 26 Apr 2012 12:52:19 GMT

     [ https://issues.apache.org/jira/browse/GORA-119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ferdy Galema updated GORA-119:

    Attachment: GORA-119-v1.txt

I went ahead and made a proposal implementation for C.

It currently consists of a single filter, SingleFieldValueFilter. It is able to include or
exclude a row based on value of a single field. Tests are included. It will work for every
store, because it filters client-side. Additionally, the HBaseStore sets the filter regionserver-side
for efficiency. Of course the GoraFilter has been designed with the HBase filter in mind,
more or less.

This is just a start. There is still a lot of work to do, such as adding more filters (for
example RowKeyFilter, ColumnPrefixFilter, FilterList etcetera) and more compare operations.
> implement a filter enabled scan in gora
> ---------------------------------------
>                 Key: GORA-119
>                 URL: https://issues.apache.org/jira/browse/GORA-119
>             Project: Apache Gora
>          Issue Type: Improvement
>    Affects Versions: 0.2
>         Environment: gora hbase gora-core gora-hbase
>            Reporter: raf shin
>              Labels: filter, gora-core, gora-hbase, scan
>             Fix For: 0.3
>         Attachments: GORA-119-v1.txt
> it'll be very of help to implement a filtered scan to reduce the time of scan in gora-core
and gora-hbase components.

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