godfrey he created FLINK-13168:
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Summary: clarify isBatch/isStreaming/isBounded flag in flink
planner and blink planner
Key: FLINK-13168
URL: https://issues.apache.org/jira/browse/FLINK-13168
Project: Flink
Issue Type: Improvement
Components: Table SQL / Legacy Planner, Table SQL / Planner
Reporter: godfrey he
Assignee: godfrey he
in blink planner & flink planner, there are many `isBatch` and `isStreaming`
flags, they have different meaning in different place. which makes reader and
coder crazy. especially in blink planner, Only `StreamTableSource` could be
used for both batch and stream. is `bounded StreamTableSource` means batch,
`unbounded` means stream ?
we should make it clear:
1. `isBatch` in `ConnectorCatalogTable`, which tells if the
tableSource/tableSink is BatchTableSource/BatchTableSink
2. `isStreaming` in `TableSourceTable`, which tells if if the current table is
on stream planner
3. `bounded StreamTableSource` could be used for both batch and stream, while
`unbounded StreamTableSource` could only be used for stream.
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