I'm in the process of finishing a native Protocol 3 PostgreSQL driver
written in Pike.
And while trying to make it make intelligent decisions regarding binary
or text encoding of different columns and parameters, I run into the
OIDs of types.
In looking through the specs, I decided that the following OIDtypes will
be (automatically) binary passed (both as results and as parameters),
all others will be passed as text:
case 16: // _bool case 17: // _bytea case 18: // _char case 20: // _int8 case 21: // _int2 case
23: // _int4 case 25: // _text case 142: // _xml case 829: // _macaddr case 869: // _inet case 1042: //
_bpchar case 1043: // _varchar case 1700: // _numeric case 2950: // _uuid
How large is the probability of these numbers ever changing?
Should I extract them from a query at the beginning of the connection?
Or can I leave them hardcoded in the driver?
--
Sincerely, Stephen R. van den Berg.
A truly wise man never plays leapfrog with a unicorn.
