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_r327914514
 
 

 ##########
 File path: 
flink-examples/flink-examples-table/src/main/java/org/apache/flink/table/examples/java/StreamSQLExample.java
 ##########
 @@ -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:
   Could you explain it more clearly in this error message that you have use 
either `flink` planner or `blink` planner?

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