Kadir OZDEMIR created PHOENIX-5768:
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Summary: Supporting partial overwrites for immutable tables with
indexes
Key: PHOENIX-5768
URL: https://issues.apache.org/jira/browse/PHOENIX-5768
Project: Phoenix
Issue Type: Bug
Affects Versions: 4.14.3, 5.0.0
Reporter: Kadir OZDEMIR
Assignee: Kadir OZDEMIR
Phoenix allows immutable table with indexes to be overwritten partially as long
as the indexed columns are not updated during partial overwrites. However,
there is no check/enforcement for this. The immutable index mutations are
prepared on the client side without reading the existing data table rows. This
means the index mutations prepared by the client will be partial when the data
table row mutations are partial. The new indexing design assumes index rows are
always full and all cells within an index row have the same timestamp. On the
read path, GlobalIndexChecker returns only the cells with the most recent
timestamp of the row. This means that if the client updates the same row
multiple times, the client will read back only the most recent update which
could be partial.
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