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.
* Wide range of Postgres-compatible databases are supported, i.e. Amazon RDB, Heroku, Yellowbrick, etc.

 

    Main features are:

  • High performance in all OLTP and OLAP scenarios.
  • Database conversion with DTS Wizard (MSSQL 2000) or SSRS, SSAS and SSIS Wizard (SQL Server 2005-2022).
  • Supported OS Platforms: Windows XP, Windows Servers 2003-2022, Windows Vista, Windows 7-11.
  • 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.

February 14, 2022    Ver 1.4.0.3656

Fixed a side-effect from previous performance optimization for query results.
Fixed bug in handling bpchar column without specified size.

February 7, 2022    Ver 1.4.0.3654

Performance optimizations for query results.
Fixed bug "An unexpected NULL was returned for column" when querying a column from subquery in linked server.
Fixed bug in determining expression type in some scenarios when function is used in the expression.
Fixed bug in processing expressions with OVERLAPS keyword.
PGNProfiler: Added parameter content printing for DBTYPE_BYTES.
PGNProfiler: Fixed coloration issues in Dark theme.

 FEATURE PGNP 1.2.8  PGNP 1.3.0  PGNP 1.4.0*
PostgreSQL Support 8.0 8.x, 9.x 9.x-13.x
OLE DB Connection Pooling Yes Yes Yes
OLE DB Error Reporting Yes Yes Yes
OLE DB Command Prepare and Cancel Yes Yes Yes
OLE DB Columns Information Yes Yes Yes
Database Transformation in SQL Server DTSWizard Yes Yes Yes
Local Transaction Support Yes Yes Yes
Distributed Transactions and Two Phase Commit Protocol (DTC enlistment) No Yes** Yes**
SQL Server 2005-2019 Linked Servers Support Yes Yes Yes
SQL Server 2005-2019 to PostgreSQL Replication Support Yes Yes Yes


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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