Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1955#discussion_r61755204
--- Diff: docs/apis/table.md ---
@@ -33,10 +28,10 @@ under the License.
**Table API and SQL are experimental features**
-The Table API is a SQL-like expression language that can be embedded in
Flink's DataSet and DataStream APIs (Java and Scala).
-A `DataSet` or `DataStream` can be converted into a relational `Table`
abstraction. You can apply relational operators such as selection, aggregation,
and joins on `Table`s or query them with regular SQL queries.
-When a `Table` is converted back into a `DataSet` or `DataStream`, the
logical plan, which was defined by relational operators and SQL queries, is
optimized using [Apache Calcite](https://calcite.apache.org/)
-and transformed into a `DataSet` or `DataStream` execution plan.
+The Table API is a SQL-like expression language for relational stream and
batch processing that can be easily embedded in Flink's DataSet and DataStream
APIs (Java and Scala).
+The Table API operates on a relational `Table` abstraction, which can be
created from external data sources, or existing DataSets and DataStreams. With
the Table API, you can apply relational operators such as selection,
aggregation, and joins on `Table`s.
--- End diff --
"The Table API *and SQL interface* operates..."
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