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by eugemz
Wed Feb 13, 2013 8:59 pm
Forum: vSQL
Topic: Timeseries Aggregate Function and NULL Values
Replies: 2
Views: 18524

Re: Timeseries Aggregate Function and NULL Values

You are trying to do a linear interpolation with a null value and that will create a NULL value.

You have null in 00:10 and the previous value is 00:05, so all the slide_time that will use those 2 values to do an linear interpolation, will return null.

Does make sense?
by eugemz
Wed Feb 13, 2013 8:41 pm
Forum: New to Vertica
Topic: Does Size Matter?
Replies: 6
Views: 17630

Re: Does Size Matter?

In addition when loading the data the size matter too! At a customer site who has all the varchar(64000) when we change the columns size with got 3x load improvement.

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