Fix Hive Flink Table Query Issue

To query tables created in Flink, you can use Flink’s REST API to access the metadata information of the tables. First, you need to start Flink’s REST API service, then you can retrieve the metadata information of the tables by sending HTTP requests. Here are some steps:

1. Start the Flink REST API service by configuring the port number and access permissions in the Flink configuration file, and then start the Flink cluster.
2. You can retrieve metadata information of tables by using HTTP requests. For example, you can use curl or other HTTP client tools to send a GET request to the /tables endpoint to get a list of all tables, or send a GET request to the /tables/{table-name} endpoint to retrieve information about a specific table.
3. Analyze the returned data: By analyzing the metadata information of the returned data format, you can obtain details such as the table structure, field information, and data source of the table.

By following the steps above, you can query the metadata information of the tables created in Flink and perform corresponding data operations.