Search found 93 matches

by usli06
Mon Oct 28, 2013 9:24 pm
Forum: Vertica Database Administration
Topic: A lot of records in the QUERY_EVENTS table...
Replies: 0
Views: 4881

A lot of records in the QUERY_EVENTS table...

Hello, I was checking out the records in the QUERY_EVENTS table. Does anyone know if I should be worried about these records? In particular the SMALL_MERGE_REPLACED, MERGE_CONVERTED_TO_UNION and WOS_SPILL records :?: dbadmin=> select distinct event_category, event_type, count(*) from query_events gr...
by usli06
Fri Oct 25, 2013 2:19 pm
Forum: Vertica SQL Functions
Topic: How to convert an epoch to a timetamp?
Replies: 0
Views: 7181

How to convert an epoch to a timetamp?

Howdy, On page 205 of the sql reference guide there is a little blurb about how to convert an epoch back into a timestamp: Here is how you can convert an epoch value back to a timestamp: SELECT TIMESTAMP WITH TIME ZONE 'epoch' + 982384720 * INTERVAL '1 second'; However, that conversion doesn't seem ...
by usli06
Wed Oct 16, 2013 4:04 pm
Forum: Vertica SQL
Topic: Recommended Sequence Cache Size
Replies: 2
Views: 6580

Re: Recommended Sequence Cache Size

Thanks, Jim! Awesome time tests!
by usli06
Tue Oct 15, 2013 1:33 pm
Forum: Vertica SQL
Topic: Recommended Sequence Cache Size
Replies: 2
Views: 6580

Recommended Sequence Cache Size

Hi, The default size of a sequence cache is 250,000. That seems awful high to me considering if I only insert a few rows per session I'll lose a lot of the sequence values and they'll be huge gaps in my primary key. Does anyone have a recommendation on a cache size? I've tried no cache, but the perf...
by usli06
Tue Oct 08, 2013 5:25 pm
Forum: New to Vertica Database Administration
Topic: How much space is used if HistoryRetentionTime is increased?
Replies: 3
Views: 7543

Re: How much space is used if HistoryRetentionTime is increa

Hmm. Ok, thanks, sKwa. I suppose that makes sense.
by usli06
Tue Oct 08, 2013 4:17 pm
Forum: New to Vertica Database Administration
Topic: How much space is used if HistoryRetentionTime is increased?
Replies: 3
Views: 7543

How much space is used if HistoryRetentionTime is increased?

Hello,

Is there a way to tell how much disk space I am using if increase the HistoryRetentionTime parameter to a 24 hour period using the command SELECT SET_CONFIG_PARAMETER ('HistoryRetentionTime', '86400'); ?

Also, does this storage count against my license allowance?
by usli06
Sun Sep 22, 2013 5:06 pm
Forum: New to Vertica Database Administration
Topic: Change Owner of View
Replies: 2
Views: 6004

Re: Change Owner of View

Thanks, Jim. I kind of figured as much. Thanks for a nice work around :)

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