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Posted to dev@tinkerpop.apache.org by "Matt Frantz (JIRA)" <ji...@apache.org> on 2015/04/30 17:54:07 UTC
[jira] [Created] (TINKERPOP3-652) select from Map should be
explicit
Matt Frantz created TINKERPOP3-652:
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Summary: select from Map should be explicit
Key: TINKERPOP3-652
URL: https://issues.apache.org/jira/browse/TINKERPOP3-652
Project: TinkerPop 3
Issue Type: Improvement
Components: process
Reporter: Matt Frantz
Currently, {{select}} looks at the value in the traverser, and if it is a {{Map}}, it treats its arguments as keys, and extracts values from the {{Map}}. Otherwise, it treats its arguments as step labels and extracts values from the {{Path}}. It would seem less confusing to make this choice explicit.
The two modes of {{select}} feel a bit like the two modes of {{range}} distinguished by the {{Scope}} parameter. Does {{select}} need a {{local}} option to make it expect a {{Map}}?
Or would {{selectKeys}} be more consistent with {{hasKeys}}?
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