Aleksey Plekhanov created IGNITE-20006:
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Summary: Calcite engine. Make table/index scan iterators yieldable
Key: IGNITE-20006
URL: https://issues.apache.org/jira/browse/IGNITE-20006
Project: Ignite
Issue Type: Improvement
Reporter: Aleksey Plekhanov
Assignee: Aleksey Plekhanov
Currently, index/table iterators can scan unpredictable count of cache entries
during one {{hasNext()}}/{{next()}} call. These iterators contain filter, which
applyed to each entry and row produced only for entries that satisfy filter. If
filter contains "always false" rule, one {{hasNext()}} call may scan entiry
table uninterruptably, without timeouts and yields to make another queries do
their job. We should fix this behaviour.
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