Anentropic created CASSANDRA-5200:
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Summary: Add a way to cancel TTL on a column (without changing
value)
Key: CASSANDRA-5200
URL: https://issues.apache.org/jira/browse/CASSANDRA-5200
Project: Cassandra
Issue Type: New Feature
Reporter: Anentropic
Currently you can set TTL on a column value:
UPDATE table USING TTL 30 SET col1='test' WHERE id=123;
The only way to cancel the TTL, so that col1='test' doesn't expire, is to set
col1 to a new value.
If you want col1 to keep its current value but stop expiring I don't see a
reliable way. You (understandably) can't do:
UPDATE table SET col1=col1 WHERE id=123;
And obviously if you have to SELECT the value first you have a race condition.
I understand the reasons for not allowing SET col1=col1 but I'm guessing it
wouldn't be too hard to allow some way to cancel the TTL without having to set
a value?
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