Quanlong Huang created IMPALA-11390:
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Summary: Describe formatted statement on materialized view should show the view definition
Key: IMPALA-11390
URL: https://issues.apache.org/jira/browse/IMPALA-11390
Project: IMPALA
Issue Type: Bug
Components: Frontend
Reporter: Quanlong Huang
After IMPALA-10723, materialized views are treated as table instead of view in Impala. The DESCRIBE FORMATTED statement therefore is missing the view information.
Results in Impala
{noformat}
[localhost:21050] default> describe formatted functional_orc_def.mv1_alltypes_jointbl;
Query: describe formatted functional_orc_def.mv1_alltypes_jointbl
+------------------------------+------------------------------------------------------------------------------------------+----------------------+
| name | type | comment |
+------------------------------+------------------------------------------------------------------------------------------+----------------------+
| # col_name | data_type | comment |
| | NULL | NULL |
| c1 | smallint | NULL |
| c2 | boolean | NULL |
| c3 | bigint | NULL |
| min_bigint | bigint | NULL |
| min_zip | int | NULL |
| | NULL | NULL |
| # Detailed Table Information | NULL | NULL |
| Database: | functional_orc_def | NULL |
| OwnerType: | USER | NULL |
| Owner: | quanlong | NULL |
| CreateTime: | Sun May 22 11:16:57 CST 2022 | NULL |
| LastAccessTime: | UNKNOWN | NULL |
| Retention: | 0 | NULL |
| Location: | hdfs://localhost:20500/test-warehouse/managed/functional_orc_def.db/mv1_alltypes_jointbl | NULL |
| Table Type: | MATERIALIZED_VIEW | NULL |
| Table Parameters: | NULL | NULL |
| | bucketing_version | 2 |
| | materializedview.engine | tez |
| | numFiles | 1 |
| | totalSize | 555 |
| | transient_lastDdlTime | 1653189458 |
| | NULL | NULL |
| # Storage Information | NULL | NULL |
| SerDe Library: | org.apache.hadoop.hive.ql.io.orc.OrcSerde | NULL |
| InputFormat: | org.apache.hadoop.hive.ql.io.orc.OrcInputFormat | NULL |
| OutputFormat: | org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat | NULL |
| Compressed: | No | NULL |
| Num Buckets: | -1 | NULL |
| Bucket Columns: | [] | NULL |
| Sort Columns: | [] | NULL |
| | NULL | NULL |
| # Constraints | NULL | NULL |
+------------------------------+------------------------------------------------------------------------------------------+----------------------+
{noformat}
Results in Hive
{noformat}
+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+
| col_name | data_type | comment |
+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+
| c1 | smallint | |
| c2 | boolean | |
| c3 | bigint | |
| min_bigint | bigint | |
| min_zip | int | |
| | NULL | NULL |
| # Detailed Table Information | NULL | NULL |
| Database: | functional_orc_def | NULL |
| OwnerType: | USER | NULL |
| Owner: | quanlong | NULL |
| CreateTime: | Sun May 22 11:16:57 CST 2022 | NULL |
| LastAccessTime: | UNKNOWN | NULL |
| Retention: | 0 | NULL |
| Location: | hdfs://localhost:20500/test-warehouse/managed/functional_orc_def.db/mv1_alltypes_jointbl | NULL |
| Table Type: | MATERIALIZED_VIEW | NULL |
| Table Parameters: | NULL | NULL |
| | bucketing_version | 2 |
| | materializedview.engine | tez |
| | numFiles | 1 |
| | totalSize | 555 |
| | transient_lastDdlTime | 1653189458 |
| | NULL | NULL |
| # Storage Information | NULL | NULL |
| SerDe Library: | org.apache.hadoop.hive.ql.io.orc.OrcSerde | NULL |
| InputFormat: | org.apache.hadoop.hive.ql.io.orc.OrcInputFormat | NULL |
| OutputFormat: | org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat | NULL |
| Compressed: | No | NULL |
| Num Buckets: | -1 | NULL |
| Bucket Columns: | [] | NULL |
| Sort Columns: | [] | NULL |
| | NULL | NULL |
| # Materialized View Information | NULL | NULL |
| Original Query: | SELECT t1.smallint_col c1, t1.bool_col c2, | NULL |
| | | t2.test_id c3, min(t1.bigint_col) min_bigint, min(t2.test_zip) min_zip |
| | | FROM functional_orc_def.alltypes t1 |
| | | JOIN functional_orc_def.jointbl t2 ON (t1.id=t2.alltypes_id) |
| | | group by t1.smallint_col, t1.bool_col, t2.test_id |
| Expanded Query: | SELECT `t1`.`smallint_col` `c1`, `t1`.`bool_col` `c2`, | NULL |
| | | `t2`.`test_id` `c3`, min(`t1`.`bigint_col`) `min_bigint`, min(`t2`.`test_zip`) `min_zip` |
| | | FROM `functional_orc_def`.`alltypes` `t1` |
| | | JOIN `functional_orc_def`.`jointbl` `t2` ON (`t1`.`id`=`t2`.`alltypes_id`) |
| | | group by `t1`.`smallint_col`, `t1`.`bool_col`, `t2`.`test_id` |
| Rewrite Enabled: | Yes | NULL |
| Outdated for Rewriting: | No | NULL |
| | NULL | NULL |
| # Materialized View Source table information | NULL | NULL |
| Table name | I/U/D since last rebuild | NULL |
| hive.functional_orc_def.alltypes | 0/0/0 | NULL |
| hive.functional_orc_def.jointbl | 0/0/0 | NULL |
+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+{noformat}
CC [~amansinha]
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