Victoria Markman created DRILL-2215:
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Summary: COALESCE function needs to be documented
Key: DRILL-2215
URL: https://issues.apache.org/jira/browse/DRILL-2215
Project: Apache Drill
Issue Type: Bug
Components: Documentation
Affects Versions: 0.8.0
Reporter: Victoria Markman
Assignee: Bridget Bevens
COALESCE function returns the first non-null expression in the list. If all
expressions evaluate to null, then the COALESCE function will return null.
COALESCE( expr1, expr2, ... expr_n )
expr1 to expr_n are the expressions to test for non-null values.
Expressions have to be of the same type.
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