Mingyu Chen 07ad038870 [Feature][RoutineLoad] Support for consuming kafka from the point of time (#5832) ...

Support when creating a kafka routine load, start consumption from a specified point in time instead of a specific offset.
eg:
```
FROM KAFKA
(
    "kafka_broker_list" = "broker1:9092,broker2:9092",
    "kafka_topic" = "my_topic",
    "property.kafka_default_offsets" = "2021-10-10 11:00:00"
);

or

FROM KAFKA
(
    "kafka_broker_list" = "broker1:9092,broker2:9092",
    "kafka_topic" = "my_topic",
    "kafka_partitions" = "0,1,2",
    "kafka_offsets" = "2021-10-10 11:00:00, 2021-10-10 11:00:00, 2021-10-10 12:00:00"
);
```

This PR also reconstructed the analysis method of properties when creating or altering
routine load jobs, and unified the analysis process in the `RoutineLoadDataSourceProperties` class.

2021-05-22 23:37:53 +08:00

..

sql-functions

[Function] Add BE udf bitmap_min (#2538) (#5581)

2021-04-08 09:11:32 +08:00

sql-statements

[Feature][RoutineLoad] Support for consuming kafka from the point of time (#5832)

2021-05-22 23:37:53 +08:00