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Chinmay Kulkarni updated PHOENIX-5944: -------------------------------------- Description: The PK of SYSTEM.TASK is (TASK_TYPE, TASK_TS, TENANT_ID, TABLE_SCHEM, TABLE_NAME) and the Task.queryTaskTable methods [1|https://github.com/apache/phoenix/blob/5f9364db7e4925229704706e148e62f4cf4ec4c2/phoenix-core/src/main/java/org/apache/phoenix/schema/task/Task.java#L181] and [2|https://github.com/apache/phoenix/blob/5f9364db7e4925229704706e148e62f4cf4ec4c2/phoenix-core/src/main/java/org/apache/phoenix/schema/task/Task.java#L226] do a full table scan as mentioned. Can we reorder/modify the PK to switch this to a range scan instead of a FTS? Let's discuss if this is possible. Based on PHOENIX-5943, this change may be to either or both of SYSTEM.TASK_QUEUE and SYSTEM.TASK_HISTORY. Note that since this is a PK change, we need to be careful when handling this in the upgrade path. was: The PK of SYSTEM.TASK is (TASK_TYPE, TASK_TS, TENANT_ID, TABLE_SCHEM, TABLE_NAME) and the Task.queryTaskTable methods [1|https://github.com/apache/phoenix/blob/5f9364db7e4925229704706e148e62f4cf4ec4c2/phoenix-core/src/main/java/org/apache/phoenix/schema/task/Task.java#L181] and [2|https://github.com/apache/phoenix/blob/5f9364db7e4925229704706e148e62f4cf4ec4c2/phoenix-core/src/main/java/org/apache/phoenix/schema/task/Task.java#L226] do a full table scan as mentioned. Can we reorder/modify the PK to switch this to a range scan instead of a FTS? Let's discuss if this is possible. Based on [PHOENIX-5943|https://issues.apache.org/jira/browse/PHOENIX-5943], this change may be to either or both of SYSTEM.TASK_QUEUE and SYSTEM.TASK_HISTORY. > Modify the PK of SYSTEM.TASK to avoid full table scans > ------------------------------------------------------ > > Key: PHOENIX-5944 > URL: https://issues.apache.org/jira/browse/PHOENIX-5944 > Project: Phoenix > Issue Type: Improvement > Affects Versions: 4.15.0 > Reporter: Chinmay Kulkarni > Priority: Major > Fix For: 5.1.0, 4.16.0 > > > The PK of SYSTEM.TASK is (TASK_TYPE, TASK_TS, TENANT_ID, TABLE_SCHEM, > TABLE_NAME) and the Task.queryTaskTable methods > [1|https://github.com/apache/phoenix/blob/5f9364db7e4925229704706e148e62f4cf4ec4c2/phoenix-core/src/main/java/org/apache/phoenix/schema/task/Task.java#L181] > and > [2|https://github.com/apache/phoenix/blob/5f9364db7e4925229704706e148e62f4cf4ec4c2/phoenix-core/src/main/java/org/apache/phoenix/schema/task/Task.java#L226] > do a full table scan as mentioned. > Can we reorder/modify the PK to switch this to a range scan instead of a FTS? > Let's discuss if this is possible. Based on PHOENIX-5943, this change may be > to either or both of SYSTEM.TASK_QUEUE and SYSTEM.TASK_HISTORY. > Note that since this is a PK change, we need to be careful when handling this > in the upgrade path. -- This message was sent by Atlassian Jira (v8.3.4#803005)