julianhyde commented on issue #96: support from unix timestamp to string date
URL: https://github.com/apache/calcite-avatica/pull/96#issuecomment-490600716
 
 
   In SQL, timestamps are zoneless, whereas in Unix they are relative to the 
UTC epoch.
   
   Existing methods that have 'unix' in the name and have `long` arguments 
and/or results follow the SQL semantics. (I apologize that the names are 
misleading. I wanted to capture the fact that it is milliseconds since 1970, 
but not that it was relative to 1970 UTC.)
   
   Your method assumes that the `long` value is relative to UTC. That is 
opposite to how Avatica does things (although it is the natural way for Java 
folks to do things), and will confuse people.

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