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PGNP OLEDB Provider for PostgreSQL, Greenplum and Redshift

PostgreSQLThe PGNP provider is a thin layer between Microsoft ADO and PostgreSQL database. It implements most of the OLEDB interfaces and uses libpq to access a PostgreSQL database. The provider can be used from 32-bit and 64-bit applications both native and .NET.


    Main features are:

  • Database conversion with DTS Wizard (MSSQL 2000) or SSIS Wizard (MSSQL 2005/2008/2012).
  • Support for SSRS, SSAS and SSIS.
  • SQL Server Linked Servers and Replication support.
  • Error reporting and execution tracing.
  • Transactions support: standard OLEDB, and "nested" PostgreSQL transaction using savepoints.
  • Distributed transactions (two phase commit protocol).
  • Schema support for tables, views, provider types, columns, primary/foreign keys, indexes, etc.
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PGNP Features Matrix (32- and 64-bit Platforms)
 PGNP 1.2.8
 PGNP 1.3.0  PGNP 1.4.0*
PostgreSQL 8.x SupportYesYesYes
OLE DB Connection PoolingYesYesYes
OLE DB Error Reporting Yes YesYes
OLE DB Command Prepare and Cancel YesYes Yes
OLE DB Columns Information YesYesYes
Database Transformation in SQL Server DTSWizard YesYes Yes
Local Transaction SupportYesYesYes
Distributed Transactions and Two Phase Commit Protocol (DTC enlistment)NoYesYes
SQL Server 2000, 2005 and 2008 Linked Servers SupportYesYesYes
SQL Server 2000, 2005 and 2008 to PostgreSQL Replication Support Yes YesYes
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PGNP Project History

June 13, 2015    Ver 1.4.0.3362

Fixed bug when preparing query from a function with parameter(s). Previously "function not found" error was returned because parameters types were not passed correctly in the Prepare call.
Added ability to convert procedure parameters to the required type. For example, a stored procedure has parameter of type "timestamp", but the ADO/OLEDB parameter is "string". The PGNP provider will automatically convert the parameter to "timestamp".
Fixed bug in handling command parameters when their ordinal positions are not sequential.
Fixed bug in handling CASE clause: "order of WHEN items was reversed".
Fixed bug in handling of very large numeric values when reading from Postgres DB (47317.234320284904539357876164946677632000).
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What's New in 1.4?

The new major version of the PGNP OLEDB Provider for PostgreSQL, Greenplum and Redshift has several new features and improvements:
  1. Optimizations for very large data sets (1 billion rows and more).
  2. Deferred updates support (IRowsetUpdate).
  3. Better support for Greenplum 4.x (awareness about distribution policy, better use of cursors, gpload utilization for bulk operations, etc.)
  4. Better support for PostgreSQL 9.x.
  5. New utility for Automated updates (not included in the trial build).
  6. Better integration with SSIS (MS BI tools).
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