Allow selecting slices of arrays and maps
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core
java
P3
sub-task
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- Java
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Description
It would be nice to allow selecting array slices. So for instance
Select.fieldNames("a.b[0:3].c")
Selecting specific keys from maps would be especially useful
Select.fieldNames("event.errors\{accessDenied}.originator")
Imported from Jira [BEAM-7337](https://issues.apache.org/jira/browse/BEAM-7337). Original Jira may contain additional context.
Reported by: reuvenlax.
Subtask of issue #18898
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