Is there a means to know the type of an expression ?
Something like a "typeof" function ?
As I work a lot with numbers of type "numeric", I often want to know
the precision of the result returned by an expression, in case the
returned result is "numeric".
I would also like to know if numbers of ty
In the document "Transaction Processing in PostgreSQL"
( http://www.postgresql.org/files/developer/transactions.pdf )
I read :
"Postgres transactions are only guaranteed atomic if a disk page write
is an atomic action. On most modern hard drives that's true if a page
is a physical sector, but most
Hi,
When tuples are deleted, there remains free space in table and index
files.
Is it possible to know for each table and index how much free space it
contains ?
Thanks
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