KurtYoung commented on a change in pull request #9761:
[FLINK-14031][examples][table]Added the blink planner dependency and …
URL: https://github.com/apache/flink/pull/9761#discussion_r327914739
##########
File path:
flink-examples/flink-examples-table/src/main/java/org/apache/flink/table/examples/java/StreamSQLExample.java
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@@ -42,9 +47,24 @@
public static void main(String[] args) throws Exception {
+ final ParameterTool params = ParameterTool.fromArgs(args);
+ String planner = params.has("planner") ? params.get("planner")
: "flink";
+
// set up execution environment
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();
- StreamTableEnvironment tEnv =
StreamTableEnvironment.create(env);
+ StreamTableEnvironment tEnv;
+ if (Objects.equals(planner, "blink")) { // use blink planner in
streaming mode
+ EnvironmentSettings settings =
EnvironmentSettings.newInstance()
+ .useBlinkPlanner()
+ .inStreamingMode()
+ .build();
+ tEnv = StreamTableEnvironment.create(env, settings);
+ } else if (Objects.equals(planner, "flink")){ // use flink
planner in streaming mode
+ tEnv = StreamTableEnvironment.create(env);
+ } else {
+ System.err.println("The planner is incorrect. Please
use --planner to specify planner type.");
Review comment:
The user will not have such knowledge when they are trying the examples
without looking into the codes.
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