May 2017
Beginner
416 pages
10h 37m
English
Content preview from Mastering PostgreSQL 9.6
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Using foreign data wrappers
If you want to move from MySQL/MariaDB to PostgreSQL there is more than one way to succeed. The use of foreign data wrappers is an alternative to pg_chameleon and offers a way to quickly fetch the schema as well as the data and import it into PostgreSQL. The ability to connect MySQL and PostgreSQL has been around for quite a while and therefore foreign data wrappers are definitely a field which can be exploited to your advantage.
Basically, the mysql_fdw extension works just like any other FDW out there. Compared to other less known FDWs the mysql_fdw extension is actually quite powerful and offers the following features:
- Writing to MySQL/MariaDB
- Connection pooling
- The WHERE clause push down (which means that ...
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