Search found 23 matches
- Tue Sep 24, 2013 8:03 pm
- Forum: Vertica Database Administration
- Topic: Drop partition fails with Error
- Replies: 5
- Views: 10225
Re: Drop partition fails with Error
Thanks, I'll try this
- Tue Sep 24, 2013 7:12 pm
- Forum: Vertica Database Administration
- Topic: Drop partition fails with Error
- Replies: 5
- Views: 10225
Re: Drop partition fails with Error
select drop_partition('tablename')
- Tue Sep 24, 2013 3:35 pm
- Forum: Vertica Database Administration
- Topic: Drop partition fails with Error
- Replies: 5
- Views: 10225
Drop partition fails with Error
I get this error often while dropping partitions ERROR 2083: A Moveout operation is already in progress on projection XXX Is there a command to drop partitions which incorporates a "wait" till the moveout is done? Dropping partitions is critical as space usage needs to be reclaimed. This requires sc...
- Mon Aug 12, 2013 4:30 pm
- Forum: Vertica Performance Tuning
- Topic: Partition Pruning on Date Columns Gotcha
- Replies: 5
- Views: 13979
Re: Partition Pruning on Date Columns Gotcha
I dont agree
Try purging a day's worth of 2 billion log entries on a daily basis without partitions.
You have to partition by date to have a smooth way to purge historical data.
Try purging a day's worth of 2 billion log entries on a daily basis without partitions.
You have to partition by date to have a smooth way to purge historical data.
- Sat Aug 10, 2013 7:59 pm
- Forum: Vertica Performance Tuning
- Topic: Partition Pruning on Date Columns Gotcha
- Replies: 5
- Views: 13979
Partition Pruning on Date Columns Gotcha
If I create a table with a partition like partition by date_trunc('day',dt) where dt is a timestamp columns... then queries like where dt >= date_trunc('day',current_timestamp) will be slower than dt >= date_trunc('day',current_timestamp::timestamp) This is also true for postgres...I would expect th...
- Sat Aug 10, 2013 6:43 pm
- Forum: New to Vertica Database Administration
- Topic: Column Sort Order
- Replies: 5
- Views: 10187
Column Sort Order
If i create a projection with a sort order like
order by col1,col2,col3
what does that translate to from a storage perspective...
Does it mean that col1,col2 and col3 are independently stored sorted ? Is there any collocation of rows based on this column ordering
order by col1,col2,col3
what does that translate to from a storage perspective...
Does it mean that col1,col2 and col3 are independently stored sorted ? Is there any collocation of rows based on this column ordering
- Sun Aug 04, 2013 4:22 pm
- Forum: Vertica Database Administration
- Topic: Disk/CPU/Memory Usage
- Replies: 1
- Views: 9061
Disk/CPU/Memory Usage
Is there a way to see how a query performs with respect to IO calls made / Cache hits / Memory Used / Network Wait
I understand that the Web Admin Interface has a graphical component that does something similar. I am looking for an accurate profile of resource usage by a query
I understand that the Web Admin Interface has a graphical component that does something similar. I am looking for an accurate profile of resource usage by a query