Tanuj Khurana created PHOENIX-6218:
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Summary: Rows deleted count is incorrect for immutable tables with
indexes
Key: PHOENIX-6218
URL: https://issues.apache.org/jira/browse/PHOENIX-6218
Project: Phoenix
Issue Type: Bug
Reporter: Tanuj Khurana
Assignee: Tanuj Khurana
For immutable tables if the best query plan for delete uses the data table and
it has an index, the rows deleted count reported is #(rows updated)/#(tables
updated) where # of rows updated only includes data table rows but the number
of tables includes data + index. This reduces the row count than the actual
rows deleted count.
The same problem can also happen if the best query plan uses the index table
and there are more than one index present on the data table. In this case the
rows updated will include both data table and the index table (one used by the
query plan) but because there are other indexes also present the #(tables
updated) will be more and we will get an inaccurate result.
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