Does Impala support dynamic partition loading?
Yes, Impala supports Dynamic Partition Loading. This refers to automatically creating new partitions based on specific column values when loading data into a table. This helps avoid the tedious task of manually creating partitions and moving data, improving efficiency and flexibility in data loading.
In Impala, you can use the INSERT statement to load data and achieve dynamic partition loading by specifying the PARTITION clause. For example, you can use an INSERT statement like the following to load data into a partitioned table:
INSERT INTO table_name PARTITION(column_name) SELECT * FROM source_table;
In this INSERT statement, column_name represents the partitioning column of the data. Impala will dynamically create new partitions based on the values of column_name in the SELECT query results. This allows users to easily load data into partitioned tables without having to manually manage partition creation and maintenance.
Overall, Impala supports dynamic partition loading, making data loading and management more efficient and convenient.