Pulls a datum from a given cursor, sending continuation queries when needed.
Cursor to pull from; a result of
If set to
In a default mode, a list representing the returned response JSON, or
NULL if no data is available.
In a batch mode, list of such lists representing the whole cache (which may be empty, corresponding to default mode's
When this function empties local cache, it may ask RethinkDB for more data and hence block.
isCursorEmpty to decide if it makes sense to call
In case you don't need any more answers for the query, close cursor with
Miron B. Kursa
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