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[[TableOfContents]]
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== Masthead == = PostgreSQL =
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  licence:: BSD-like
  platforms:: Unix, win32 (Cygwin); a native win32 port is in the works
  licence:: BSD
  platforms:: Unix, win32 ([http://www.postgresql.org/docs/faqs.FAQ_MINGW.html NT-based Microsoft operating system])

== Pros ==

From the [http://www.postgresql.org/about/ features page]:

 * Good compliance with SQL standards
 * Supports many SQL features
   * Foreign keys
   * Implements all SQL99 join types: inner join, left, right, full outer join, natural join
   * Subqueries
   * UNION and UNION ALL, INTERSECT and EXCEPT
   * Views
   * Triggers
 * Support for international character sets, multibyte character encodings, Unicode
 * Supports many languages for writing server-side functions/procedures and aggregates: Python, C, Perl, Tcl, PL/PgSQL, ...
 * ACID compliant
 * Support for rollback
 * Serializable transaction isolation
 * Multi-Version Concurrency Control (MVCC) for highly scalable concurrent applications

== Cons ==

 * Native Windows version is implemented in the PostgreSQL 8.x version, and just for Windows NT 4.0 / 2000 / XP / 2003. For running on other Windows platform or an older version than 8.0 there is a Cygwin version.

----
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=== PyGresQL === === PyGreSQL ===
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  URL:: http://www.PyGreSQL.org/   URL:: http://www.pygresql.org/
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  Maintenance:: Last version released Dec 13, 2004   Maintenance:: Last version released is 3.8.1 (2006-06-05)
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==== Extensions to DB API ====

  * Alternative old nonstandard PostgreSQL interface

==== Comments ====

=== PoPy ===

  URL:: http://popy.sourceforge.net
  Licence:: GPL
  Platforms:: Unix
  Python versions::
  Maintenance:: Last release 8/2001. Eventually merged with PyGresQL. http://zope.org/Members/tm/Full_Announce (as of 10/2003)

==== Extensions to DB API ====

==== Comments ====
Now incorporates PoPy - see http://zope.org/Members/tm/Full_Announce
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==== Comments ====

== Other Drivers ==

=== driver name ===

  URL::
  licence::
  platforms::
  Python versions::

==== Programming Model ====

==== Comments ====
----
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== Pros ==
 * Good compliance with SQL standards
 * Supports many SQL features
   * Foreign keys
   * Implements all SQL99 join types: inner join, left, right, full outer join, natural join
   * Subqueries
   * UNION and UNION ALL, INTERSECT and EXCEPT
   * Views
   * Triggers
 * Support for international character sets, multibyte character encodings, Unicode
 * Supports many languages for writing server-side functions/procedures and aggregates: Python, C, Perl, Tcl, PL/PgSQL, ...
 * ACID compliant
 * Support for rollback
 * Serializable transaction isolation
 * Multi-Version Concurrency Control (MVCC) for highly scalable concurrent applications

== Cons ==
 * Native Windows version is implemented in the PostgreSQL 8.x version, and just for Windows NT 4.0 / 2000 / XP / 2003. For running on other Windows platform or an older version than 8.0 there is a Cygwin version.

PostgreSQL

URL

http://www.postgresql.org/

licence
BSD
platforms

Unix, win32 ([http://www.postgresql.org/docs/faqs.FAQ_MINGW.html NT-based Microsoft operating system])

Pros

From the [http://www.postgresql.org/about/ features page]:

  • Good compliance with SQL standards
  • Supports many SQL features
    • Foreign keys
    • Implements all SQL99 join types: inner join, left, right, full outer join, natural join
    • Subqueries
    • UNION and UNION ALL, INTERSECT and EXCEPT
    • Views
    • Triggers
  • Support for international character sets, multibyte character encodings, Unicode
  • Supports many languages for writing server-side functions/procedures and aggregates: Python, C, Perl, Tcl, PL/PgSQL, ...
  • ACID compliant
  • Support for rollback
  • Serializable transaction isolation
  • Multi-Version Concurrency Control (MVCC) for highly scalable concurrent applications

Cons

  • Native Windows version is implemented in the PostgreSQL 8.x version, and just for Windows NT 4.0 / 2000 / XP / 2003. For running on other Windows platform or an older version than 8.0 there is a Cygwin version.


DB API 2.0 Drivers

PyGreSQL

URL

http://www.pygresql.org/

licence
BSD-like (depends on mxDateTime, which may be GPL-incompatible)
platforms
Unix, win32
Python versions
1.5.2 thru 2.4
Maintenance
Last version released is 3.8.1 (2006-06-05)

Now incorporates PoPy - see http://zope.org/Members/tm/Full_Announce

psycopg

URL

http://initd.org/software/initd/psycopg

Licence
GPL
Platforms
Unix, win32 (beta)
Python versions
Maintenance
Active development, frequent updates (as of 10/2003)

Extensions to DB API

  • dictfetchone(), dictfetchmany(), dictfechall() methods on the cursor object; these will return dictionaries instead of tuples, so you can access rows by name instead of by index

Comments

pyPgSQL

URL

http://pypgsql.sourceforge.net

Licence
BSD-like (depends on mxDateTime, which may be GPL-incompatible)
Platforms
Unix, win32
Python versions
2.1 thru 2.3
Maintenance
Active, sporatic (as of 10/2003)

Extensions to DB API

  • The fetch methods on cursors return an instances of PgResultSet, which you can use to access rows by index (like in DB-API), dictionary-like or with attributes. This feature can be turned off for a slight performance boost.

  • Support for PostgreSQL notifications in the low-level API.


Supported Python Applications

  • ["Zope"]
  • DbDoc

  • three PostgreSQL drivers (using pgdb, included with the PostgreSQL distro, pypgsql, and psycopg) exist for ["PyDO"] (Python Data Objects)

PostgreSQL (last edited 2021-03-31 06:49:56 by TonyLocke)

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