H.1. Client Interfaces

H.1. Client Interfaces
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There are only two client interfaces included in the base PostgreSQL distribution:

libpq is included because it is the primary C language interface, and because many other client interfaces are built on top of it.
ECPG is included because it depends on the server-side SQL grammar, and is therefore sensitive to changes in PostgreSQL itself.

All other language interfaces are external projects and are distributed separately. Table H.1 includes a list of some of these projects. Note that some of these packages might not be released under the same license as PostgreSQL . For more information on each language interface, including licensing terms, refer to its website and documentation.

Table H.1. Externally Maintained Client Interfaces

Name	Language	Comments	Website
DBD::Pg	Perl	Perl DBI driver	http://search.cpan.org/dist/DBD-Pg/
JDBC	Java	Type 4 JDBC driver	https://jdbc.postgresql.org/
libpqxx	C++	New-style C++ interface	http://pqxx.org/
node-postgres	JavaScript	Node.js driver	https://node-postgres.com/
Npgsql	.NET	.NET data provider	http://www.npgsql.org/
pgtcl	Tcl		https://github.com/flightaware/Pgtcl
pgtclng	Tcl		http://sourceforge.net/projects/pgtclng/
pq	Go	Pure Go driver for Go's database/sql	https://github.com/lib/pq
psqlODBC	ODBC	ODBC driver	https://odbc.postgresql.org/
psycopg	Python	DB API 2.0-compliant	http://initd.org/psycopg/

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