JingsongLi opened a new issue #1275:
URL: https://github.com/apache/iceberg/issues/1275
The final user case can be:
```
-- In Flink SQL client
CREATE CATALOG iceberg WITH('type'='iceberg', 'catalog-type'='hadoop',
'warehouse'='file:/tmp/warehouse_path');
USE CATALOG iceberg;
-- Create a "default.my_table" Iceberg Hadoop table in "/tmp/warehouse_path".
-- CREATE TABLE my_table (a INT, b STRING, c STRING) PARTITIONED BY(c)
WITH('type'='iceberg'); -- Not supported now.
-- INSERT INTO my_table VALUES (1, '1', '1'), (1, '2', '2'); -- Not
supported now.
-- Support:
SELECT * FROM my_table; -- SELECT
SELECT a, c FROM my_table; -- projection push down
SELECT * FROM my_table WHERE c='2'; -- filter push down
SELECT * FROM my_table LIMIT 1; -- limit push down
```
The implementations can be:
- Implement `FlinkInputFormat`: implement `SplitGenerator` and
`RowDataReader`.
- Integrate it to Catalog: Implement `FlinkTableFactory` and
`FlinkTableSource`.
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