Carl Yeksigian created CASSANDRA-12443:
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Summary: Remove alter type support
Key: CASSANDRA-12443
URL: https://issues.apache.org/jira/browse/CASSANDRA-12443
Project: Cassandra
Issue Type: Improvement
Reporter: Carl Yeksigian
Fix For: 4.x
Currently, we allow altering of types. However, because we no longer store the
length for all types anymore, switching from a fixed-width to variable-width
type causes issues. commitlog playback breaking startup, queries currently in
flight getting back bad results, and special casing required to handle the
changes. In addition, this would solve CASSANDRA-10309, as there is no
possibility of the types changing while an SSTableReader is open.
For fixed-length, compatible types, the alter also doesn't add much over a
cast, so users could use that in order to retrieve the altered type.
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