luoyuxia commented on code in PR #20247:
URL: https://github.com/apache/flink/pull/20247#discussion_r928517671
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flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/TableEnvironmentInternal.java:
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@@ -81,6 +90,15 @@ public interface TableEnvironmentInternal extends
TableEnvironment {
* @param operation The operation to be executed.
* @return the content of the execution result.
*/
+ TableResultInternal executeOperation(Operation operation);
Review Comment:
We can just implement the delegation in `executeInternal`. The reason I add
`executeOperation` is to make the whole logic clear, like first try to use
external implementation , and then `executeInternal` which is Flink's
implementation.
I'm fine to put the delegation in `executeInternal`, which won't introduce
new method for this interface.
The reason Why no `executeOperation(List<ModifyOperation> operations)` is I
don't want to expose much to user and I think it's no nesscessary. Now, this
method is mainly used by `StatementSetOperation`. And if extern dialect wants
to custom the implementation for the operation containing multi-insert, extern
dialect can return a new operation like `HiveStatementSetOperation` and then
still delegate it to `executeOperation(Operation operation)`.
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