Add Iter API to field interfaces

xichen2020 / eventdb

Storage for discrete events such as log events or tracing events

Apache License 2.0

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Add Iter API to field interfaces #68

Closed xichen2020 closed 5 years ago

xichen2020 commented 5 years ago

cc @black-adder

This PR adds Iter API to various field interfaces so we can iterate over doc ID and value pairs in fields iteratively, needed for ordering during query execution.