The following sql and when the dictionary column contains functions related to null, the results will be incorrect. ``` select * from ( select IF(o_orderpriority IS NULL, 'null', o_orderpriority) AS o_orderpriority from test_string_dict_filter_orc ) as A where o_orderpriority = 'null'; ``` ``` select * from ( select IFNULL(o_orderpriority, 'null') AS o_orderpriority from test_string_dict_filter_parquet ) as A where o_orderpriority = 'null' ``` ``` select * from ( select COALESCE(o_orderpriority, 'null') AS o_orderpriority from test_string_dict_filter_parquet ) as A where o_orderpriority = 'null'; ```
1. Download parquet file packages from:
https://doris-build-hk-1308700295.cos.ap-hongkong.myqcloud.com/regression/load/tpch1_parquet/tpch1.db.tar.gz
2. Unzip and name it to "tpch1.db"
3. Download paimon file from:
https://doris-build-hk-1308700295.cos.ap-hongkong.myqcloud.com/regression/paimon/paimon1.tar.gz
4. Unzip and name it to "paimon1"