Error when using postgresql with pgOleDb provider and long string parameter

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I'm using postgresql with pgOleDb provider. When i try to execute query where wone of the parameters longer than 35 symbols (i'm using utf-8), i recive this error

ERROR:  identifier too long
DETAIL:  Identifier must be less than 64 characters.

There is no problems when running this query with Ado.Net provider from devart. How can i solve it?

Provider from this site: http://pgfoundry.org/frs/?group_id=1000085


Switched proveder to official ODBC http://www.postgresql.org/ftp/odbc/versions/msi/