On 09/26/11 6:59 AM, Jov wrote:
>
> Hi all,
> We are going to use pg as data warehouse,but after some test,we found
> that plain text with csv format is 3 times bigger when load to pg.we
> use copy to load data.we try some optimize and it reduce to 2.5 times
> bigger.other db can avarage compress to 1/3 of the plain text.bigger
> data means heavy io.
> So my question is how to make data compressed in pg?is some fs such
> as zfs,berfs with compression feature can work well with pg?
>
your source data is CSV, what data types are the fields in the table(s)
? do you have a lot of indexes on this table(s)?
--
john r pierce N 37, W 122
santa cruz ca mid-left coast
