Masterprojekt Naumann1 escribió:
> Dear Dev-List,
> inside execProcnode.c's ExecProcNode method we want to extract the value of
> a tuple for a specific attribute. This works great for integers and
> strings, but we are not able to figure out how to do this for floating
> point numbers. Below is some example code snippet to show our problem:

"DECIMAL_OID" (you probably mean NUMERICOID) points to datatype numeric,
which is not floating point but a variable length datatype with its own
special encoding for storage.  If you want floating point you need
FLOAT4OID and FLOAT8OID, and columns created with types float and
"double precision", respectively.

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Training & Services

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