Lars Hofhansl created HBASE-13159:
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Summary: Consider RangeReferences with transformations
Key: HBASE-13159
URL: https://issues.apache.org/jira/browse/HBASE-13159
Project: HBase
Issue Type: Brainstorming
Reporter: Lars Hofhansl
Currently we have References used by HalfStoreReaders and HFileLinks.
For various use case we have here we have need for a RangeReferences with
simple transformation of the keys.
That would allow us to map HFiles between region or even tables without copying
any data.
We can probably combine HalfStores, HFileLinks, and RangeReferences into a
single concept:
* RangeReference = arbitrary start and stop row, arbitrary key transformation
* HFileLink = start and stop keys set to the linked file's start/stop key,
transformation = identity
* (HalfStore) References = start/stop key set according to top or bottom
reference, transformation = identity
Note this is a *brainstorming* issue. :)
(Could start with just references with arbitrary start/stop keys, and do
transformations later)
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