XComp edited a comment on pull request #17152:
URL: https://github.com/apache/flink/pull/17152#issuecomment-913540205
FLINK-23850 job:
```
Configuration config = new Configuration();
config.set(ExecutionCheckpointingOptions.ENABLE_CHECKPOINTS_AFTER_TASKS_FINISH,
true);
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment(config);
env.setRuntimeMode(RuntimeExecutionMode.STREAMING);
env.setRestartStrategy(RestartStrategies.fixedDelayRestart(20,
2000));
env.enableCheckpointing(10000, CheckpointingMode.EXACTLY_ONCE);
env.getCheckpointConfig().setMaxConcurrentCheckpoints(2);
env.setParallelism(6);
final StreamTableEnvironment tableEnv =
StreamTableEnvironment.create(env);
tableEnv.createTable("T1",
TableDescriptor.forConnector("kafka")
.schema(Schema.newBuilder()
.column("pk", DataTypes.STRING().notNull())
.column("x", DataTypes.STRING().notNull())
.build())
.option("topic", "flink-23850-in1")
.option("properties.bootstrap.servers",
FLINK23850Utils.BOOTSTRAP_SERVERS)
.option("value.format", "csv")
.option("scan.startup.mode", "earliest-offset")
.build());
final Table resultTable =
tableEnv.sqlQuery(
"SELECT "
+ "T1.pk, "
+ "'asd', "
+ "'foo', "
+ "'bar' "
+ "FROM T1");
tableEnv.createTable("T4",
TableDescriptor.forConnector("kafka")
.schema(Schema.newBuilder()
.column("pk", DataTypes.STRING().notNull())
.column("some_calculated_value",
DataTypes.STRING())
.column("pk1", DataTypes.STRING())
.column("pk2", DataTypes.STRING())
.build())
.option("topic", "flink-23850-out")
.option("properties.bootstrap.servers",
FLINK23850Utils.BOOTSTRAP_SERVERS)
.option("value.format", "csv")
.option("sink.delivery-guarantee", "exactly-once")
.option("sink.transactional-id-prefix",
"flink-23850")
.option("scan.startup.mode", "earliest-offset")
.build());
resultTable.executeInsert("T4");
```
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