Implementation of generated columns is not described
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Key: DERBY-4790
URL: https://issues.apache.org/jira/browse/DERBY-4790
Project: Derby
Issue Type: Improvement
Components: Documentation
Affects Versions: 10.6.1.0
Environment: All
Reporter: Uriah Eisenstein
Priority: Minor
It is not specified in the documentation whether columns defined with
"generated always as <expression>" are physically stored in the database and
take space, or calculated on the fly when read from. I asked about this on the
mailing list and found that the former is true.
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