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Posted to commits@amoro.apache.org by "XBaith (via GitHub)" <gi...@apache.org> on 2024/09/20 02:40:37 UTC
Re: [I] [Improvement]: There are slow SQL issues when querying the optimizing process [amoro]
XBaith commented on issue #2869:
URL: https://github.com/apache/amoro/issues/2869#issuecomment-2362605012
Before adding index:
```
id |estRows |task |access object |operator info |
-------------------------+---------+---------+---------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Sort_8 |471.80 |root | |arctic.table_optimizing_process.process_id:desc |
└─HashJoin_19 |471.80 |root | |inner join, equal:[eq(arctic.table_identifier.table_id, arctic.table_optimizing_process.table_id)] |
├─Point_Get_20(Build) |1.00 |root |table:table_identifier, index:table_name_index(catalog_name, db_name, table_name)| |
└─TableReader_23(Probe)|471.80 |root | |data:Selection_22 |
└─Selection_22 |471.80 |cop[tikv]| |eq(arctic.table_optimizing_process.catalog_name, "dls_dfw_iceberg"), eq(arctic.table_optimizing_process.db_name, "pda_sparkdata"), eq(arctic.table_optimizing_process.table_name, "bc_usprod_kafka_sa_uctg_v1_raw")|
└─TableFullScan_21 |248991.00|cop[tikv]|table:a |keep order:false |
```
After Adding index
```
id |estRows|task |access object |operator info |
------------------------------+-------+---------+---------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------+
Sort_8 |735.95 |root | |arctic.table_optimizing_process.process_id:desc |
└─HashJoin_19 |735.95 |root | |inner join, equal:[eq(arctic.table_identifier.table_id, arctic.table_optimizing_process.table_id)] |
├─Point_Get_20(Build) |1.00 |root |table:table_identifier, index:table_name_index(catalog_name, db_name, table_name)| |
└─IndexLookUp_26(Probe) |3131.00|root | | |
├─IndexRangeScan_24(Build)|3131.00|cop[tikv]|table:a, index:idx_catalog_db_table(catalog_name, db_name, table_name) |range:["dls_dfw_iceberg" "pda_sparkdata" "bc_usprod_kafka_sa_uctg_v1_raw","dls_dfw_iceberg" "pda_sparkdata" "bc_usprod_kafka_sa_uctg_v1_raw"], keep order:false|
└─TableRowIDScan_25(Probe)|3131.00|cop[tikv]|table:a |keep order:false |
```
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