Representation of Infinity

Representation of Infinity

When PSQL is required by an application to represent infinity, it can do so in either a 4-byte (C float type) or 8-byte (C double type) form, and in either a hexadecimal or character representation, as shown in the following table:

Table 9

Infinity Representation

Float Hexadecimal

Float Character

Double Hexadecimal

Double Character

Maximum Positive

0x7FEFFFFFFFFFFFFF

Maximum Negative

0xFFEFFFFFFFFFFFFF

Infinity Positive

0x7FF0000000000000

Infinity Negative

0xFFF0000000000000