Arvind Kandpal created CASSANDRA-21415:
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Summary: Document COPY TO limitation for control characters in
text columns
Key: CASSANDRA-21415
URL: https://issues.apache.org/jira/browse/CASSANDRA-21415
Project: Apache Cassandra
Issue Type: Improvement
Reporter: Arvind Kandpal
COPY TO does not support control characters in text column values
per RFC 4180. This is currently undocumented. Users with text columns
containing newlines, carriage returns, null bytes, or other
non-printable characters get silent data corruption on round-trip
via COPY FROM with no warning.
This ticket tracks a documentation update to cqlsh.adoc clearly
calling out this limitation and directing users to DSBulk, Spark,
or sstableloader for such use cases.
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