Re: After upgrading libpq, the same function(PQftype) call returns a different OID - Mailing list pgsql-general

On 3/20/25 00:17, Sebastien Flaesch wrote:
> Let's not deviate from my request:
> 
> I have implemented various DB client modules using the C client APIs, 
> for Oracle DB, SQL Server, IBM DB2, MySQL/MariaDB, SQLite and PostgreSQL.
> 
> While I like PostgreSQL a lot, this is the only case where I have to 
> define myself the column type ids, to implement a "describe column" feature.
> 
> ODBC has SQLDescribeCol() / SQLDescribeColW() and predefined SQL_* 
> constants like SQL_INTEGER, SQL_VARCHAR ...
> 
> Native PostgreSQL built-in SQL types should be listed in a .h header of 
> the C client API
> 

You could borrow from here:

https://github.com/postgresql-interfaces/psqlodbc/blob/main/pgtypes.h

-- 
Adrian Klaver
adrian.klaver@aklaver.com