Enis Soztutar created HBASE-7716:
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Summary: Row Groups / Row Family / Entity Groups in HBase
Key: HBASE-7716
URL: https://issues.apache.org/jira/browse/HBASE-7716
Project: HBase
Issue Type: New Feature
Components: Client, regionserver
Reporter: Enis Soztutar
Assignee: Enis Soztutar
Fix For: 0.98.0
This issue is to discuss the possible addition to the HBase data model for "Row
Groups".
As we are nearing 1.0, discussing this for 0.98 seems the right time,
especially given that we have custom region split policies, local transactions,
and API overhaul around data types -> bytes.
Row Groups are semantic groupings of rows in the Hbase data model. All rows
within a given row group share the same row group key.
Row groups are similar to column families in HBase or locality groups in
BigTable, but transposed to rows instead of columns. All the rows within a row
group physically belong together, and served by a single region. This means
that region boundaries cannot split the row group.
Row groups are not predefined, and are dynamic. There can be one row group per
row.
Row keys are fully optional, and backwards compatible.
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