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Hello,

we are trying to migrate an application developed on Delphi 6 to XE7.

When we try to use protocol postgresql-8 an error occurs : Error SQL: fe_sendauth : authentication type 5 not supported.

When we try to use protocol postgresql-7 it´s ok, but this protocol is bad for us.

If we create a new project and use protocol postgresql-8, its ok, but if we create a new project with protocol postgresql-7, and change to protocol postgresql-8 the same error occurs again.

Some suggestion ?

Thanks !!!
André

Hello André,

it seems that either your PostgreSQL client or your POstgreSQL Server don't suport the authentication type md5. Maybe you could try to change the authentication type in the server pg_hba.conf to password. Or you could try upgrading your client and your Server to a more recent Version of PostgreSQL as the 8.x series don't get any updates anymore.
With best regards,

Jan