Filip Rembiałkowski wrote: > 2007/11/15, Andrus <kobruleht2@xxxxxx>: >> "PostgreSQL 8.2.3 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC) 3.4.2 >> (mingw-special)" >> Database size in disk returned by pg_database_size() is 210 MB >> >> Database compressesed backup file size is now 125 MB. > > How do you produce this dump? pg_dump -Fc ? > > If you create plain dump ( pg_dump DBNAME > dump.file ) and zip it > (normal deflate, like winzip or sth like that), what's the size? > > If this is much smaller than 125MB, maybe you got some corner case > with postgres builtin compression. > > You cannot *always* expect 10x ratio... it depends on data. Maybe > usage patterns of your database changed and now the data is less > compressable? We find we get much, much better compression using bzip2. (It would be wonderful if pg_restore supported this natively, but I don't know enough to know if it is possible or not.) -- Stuart Bishop <stuart@xxxxxxxxxxxxxxxx> http://www.stuartbishop.net/
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