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.

October 11, 2022    Ver 1.4.0.3672

Fixed bug in reporting errors to .Net: SqlState is now set correctly to HY000.
Fixed bug in processing command parameters with type BYTES.
Fixed bug in handling stored procedure call with name in double quote, e.g. call public."MixCase"().
Fixed parse error when SIMILAR TO clause is used.
Fixed parse error when VERSION=? is used in a statement (enabled VERSION keyword).
Fixed bug in processing queries with Set Aggregate Functions, e.g. select percentile_cont(0.5) within group (order by value) from percent_test group by name.

 FEATURE PGNP 1.2.8  PGNP 1.3.0  PGNP 1.4.0*
PostgreSQL Support 8.0 8.x, 9.x 9.x-15.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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