"Brandon Aiken" <BAiken@xxxxxxxxxxxxxxx> writes: > I'm considering migrating our MySQL 4.1 database (barf!) to PostgreSQL 8 > or MySQL 5. > > The guy who originally designed the system made all the number data > FLOATs, even for currency items. Unsurprisingly, we've noticed math > errors resulting from some of the aggregate functions. I've learned > MySQL 5 stores numbers with the DECIMAL data type as text strings, and > does math at 64-bit precision. Where can I find information about how > precise PostgreSQL 8 math is? You probably want to use NUMERIC for currency values. See: http://www.postgresql.org/docs/8.1/interactive/datatype.html#DATATYPE-NUMERIC-DECIMAL -Doug
