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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