Claude Warren created CASSANDRA-18358:
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Summary: Fix issue with system.local.broadcast_port when
downgrading to v3
Key: CASSANDRA-18358
URL: https://issues.apache.org/jira/browse/CASSANDRA-18358
Project: Cassandra
Issue Type: Bug
Reporter: Claude Warren
{{system.local}} table 4.0 format adds the {{broadcast_port}} column. There is
no way to make 3.x ignore it when we try to downgrade.
There are some tables that are defined in code. (e.g. system.local)
When v3 sstable schema for these tables detects:
* a column in the sstable schema that is not in the data schema it creates a
deleted column in the data schema.
* a column in the data schema that is not in the sstable schema it throws an
exception.
There are two basic approaches to solve this:
* rewrite the data so that the additional column is removed. This is an
expensive process.
* rework the code so that columns in the data but not in the table are ignored
for this class of tables (statically defined in code).
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