Gokcen Iskender created PHOENIX-6247:
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Summary: Change SYSTEM.CATALOG to allow separation of physical
name (Hbase name) from logical name (Phoenix name)
Key: PHOENIX-6247
URL: https://issues.apache.org/jira/browse/PHOENIX-6247
Project: Phoenix
Issue Type: Improvement
Reporter: Gokcen Iskender
Currently, the tables in Phoenix have the same name as the underlying Hbase
table. Separating logical and physical table name, ie. Having a Phoenix table
point to an Hbase table with a different name have some advantages.
An example is this: Let's say we want to have a different storage/encoding
scheme for an index. We can build the new index while the clients use the old
index and once the index is rebuilt, we can momentarily start pointing to the
new index table without much downtime or performance implications. For the
client, they are using the same index with the same name, but the physical
table is different. Today, in order to change the index like this, we have to
drop it and re-create which is a downtime for the index and the data table full
scans are used for queries impacting performance while the index creation goes
on.
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