Re: [ADMIN] dbsize & pg_dump

[mcelroy, tim]

Title: dbsize & pg_dump

Please disregard this question.  I’m using pg_dump –F c which compresses the data a it backs it up.   Tim     -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of mcelroy, tim Sent: Tuesday, April 25, 2006 4:40 PM To: 'pgsql-admin@postgresql.org' Subject: [ADMIN] dbsize & pg_dump   Good afternoon, Probably an easy question but why are the file sizes differ so much between these two tools? For example:  A backup using pg_dump of our largest DB creates a file 384MB in size Using the following SQL code utilizing dbsize I get the following: FIX1=# SELECT D1.pg_size_pretty AS "FIX1_DB_SIZE" FIX1-# FROM (SELECT pg_size_pretty(database_size('FIX1'))) D1;  FIX1_DB_SIZE --------------  3832 MB (1 row) Is it safe to assume that pg_dump does a compression of the data? Thanks Tim