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https://issues.apache.org/jira/browse/ASTERIXDB-1179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15146404#comment-15146404
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Chen Li commented on ASTERIXDB-1179:
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A basic question: what's the difference between "int32('1')" and "1"? Is the
latter "int64('1')"?
> Similarity functions should coerce numeric types
> ------------------------------------------------
>
> Key: ASTERIXDB-1179
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1179
> Project: Apache AsterixDB
> Issue Type: Bug
> Components: AsterixDB, Similarity
> Environment: master (I50442edc3187d003987bc4119559eda676c9b2eb)
> Reporter: Cameron Samak
> Assignee: Taewoo Kim
>
> Similarity functions should coerce to the largest numeric type compared.
> Currently, comparing lists with different numeric types always results in
> similarity 0 or max edit distance.
> If on the other hand this is intended behavior, a note in the documentation
> would be helpful. Or, more consistently, a type error should be thrown (as is
> currently implemented for edit-distance(string, OrderedList)).
> Example query:
> {code}
> similarity-jaccard([1,7,9], [1,5,9])
> similarity-jaccard([int32('1'),int32('7'),int32('9')], [1,5,9])
> edit-distance([1,5,9], [1,6,9])
> edit-distance([int32('1'),int32('5'),int32('9')], [1,6,9])
> {code}
> Result:
> {code}
> 0.5f
> 0.0f
> 1
> 3
> {code}
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