Gergely Czuczy <phoemix@xxxxxxxxxxx> writes:
> please take a look at the documentation at
> http://www.postgresql.org/docs/7.4/static/libpq-exec.html
> at the point "PQftype", where it's said:
> " The OIDs of the built-in data types are defined in the file
> src/include/catalog/pg_type.h in the source tree."
Also, you can get the OID on the fly, eg with
SELECT oid FROM pg_type WHERE typname = ...
For standard built-in types it's okay to hard-wire OID values into your
code, but if you want to be able to deal with user-defined types you
shouldn't rely on the OID being constant.
regards, tom lane
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