Rajat Khandelwal created LENS-265:
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Summary: improve the brief error in case of no fact found error
Key: LENS-265
URL: https://issues.apache.org/jira/browse/LENS-265
Project: Apache Lens
Issue Type: Improvement
Components: cube
Reporter: Rajat Khandelwal
So basically every fact was rejected with a reason. Some reasons are just error
codes, some have additional details with them(e.g. in case of column not found,
which columns were not found) Now there's an ordering between reasons. The max
of reasons is picked and the brief error message is generated based on the
facts that were rejected with the max reason and (if exists) any details of the
reason.
This approach is good enough but there's scope for improvement. The brief error
message can also look at the smaller errors and include additional details for
the user. e.g. all facts except one say a column 'c' was not found and one fact
says it's not partitioned with the time partition queried. Then final error can
say that the column 'c' is not queriable with the given time dimension.
Consider this jira to be the place to put more such cases.
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