Jim Scott created DRILL-1248:
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Summary: group by with an alias fails
Key: DRILL-1248
URL: https://issues.apache.org/jira/browse/DRILL-1248
Project: Apache Drill
Issue Type: Bug
Components: SQL Parser
Reporter: Jim Scott
when I select using a function and alias the resultant function value it won't
parse properly saying the alias is ambiguous. I know that this is a debatable /
questionable topic, but with this engine being so flexible it seems that in
order to support all of the formatting, casting, etc.. that will likely occur
having the group by support an alias would be a big deal. This in my opinion is
nothing like an ordinal group by.
This works:
select extract(year from to_date(crimes.datetime, 'MM/DD/YYYY hh:mm:ss a'))
from BLAH group by extract(year from to_date(crimes.datetime, 'MM/DD/YYYY
hh:mm:ss a'));
This doesn't:
select extract(year from to_date(crimes.datetime, 'MM/DD/YYYY hh:mm:ss a')) as
mygroup from BLAH group by mygroup
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