wuchong commented on a change in pull request #11296: [FLINK-16363] [table]
Correct the execution behavior of TableEnvironment and StreamTableEnvironment
URL: https://github.com/apache/flink/pull/11296#discussion_r388764758
##########
File path:
flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/table/api/java/internal/StreamTableEnvironmentImpl.java
##########
@@ -357,6 +361,26 @@ public StreamExecutionEnvironment execEnv() {
return executionEnvironment;
}
+ /**
+ * This method is used for sql client to submit job.
+ */
+ public Pipeline getPipeline(String jobName) {
+ return execEnv.createPipeline(translate(), tableConfig,
jobName);
+ }
+
+ @Override
+ protected List<Transformation<?>> translate(List<ModifyOperation>
modifyOperations) {
+ // keep the behavior as before: translate each operation
independently
+ List<Transformation<?>> transformations = new
ArrayList<>(modifyOperations.size());
+ for (ModifyOperation operation : modifyOperations) {
+ List<Transformation<?>> transformationList =
planner.translate(Collections.singletonList(operation));
+ Preconditions.checkArgument(transformationList.size()
== 1,
+ "expected size is 1, actual size is " +
transformationList.size());
+ transformations.add(transformationList.get(0));
+ }
Review comment:
It seems that `StreamTableEnvironmentImpl` forces to disable multi-sink
optimization which is a pity for users. I think multi-sink optimization is
just an optimization and doesn't change affect the result, so we can allow
multi-sink optimization for `StreamTableEnvironment`. That would be a good news
for users.
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