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unidecode 0.0.5
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ASCII transliterations of Unicode text
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unidecode 0.0.5
ASCII transliterations of Unicode text



This postgres extension is a port of Unidecode library, which provides ASCII transliteration of Unicode symbols:

> SELECT unidecode('Français, Русский, 漢語 and English are my favorite languages') AS result;
 Francais, Russkii, Han Yu  and English are my favorite languages

NB: this code is in early developing stage and I'm not that great at writing C code, so please don't use it in production yet!


(I copypasted the following instructions from other project, so I'm not sure if everything will work as it said, but mostly it is valid)

To build it, just do this:

make installcheck
make install

If you encounter an error such as:

"Makefile", line 8: Need an operator

You need to use GNU make, which may well be installed on your system as gmake:

gmake install
gmake installcheck

If you encounter an error such as:

make: pg_config: Command not found

Be sure that you have pg_config installed and in your path. If you used a package management system such as RPM to install PostgreSQL, be sure that the -devel package is also installed. If necessary tell the build process where to find it:

env PG_CONFIG=/path/to/pg_config make && make installcheck && make install

And finally, if all that fails (and if you're on PostgreSQL 8.1 or lower, it likely will), copy the entire distribution directory to the contrib/ subdirectory of the PostgreSQL source tree and try it there without pg_config:

env NO_PGXS=1 make && make installcheck && make install

If you encounter an error such as:

ERROR:  must be owner of database regression

You need to run the test suite using a super user, such as the default "postgres" super user:

make installcheck PGUSER=postgres

Once unidecode is installed, you can add it to a database. If you're running PostgreSQL 9.1.0 or greater, it's a simple as connecting to a database as a super user and running:


If you've upgraded your cluster to PostgreSQL 9.1 and already had unidecode installed, you can upgrade it to a properly packaged extension with:

CREATE EXTENSION unidecode FROM unpackaged;

For versions of PostgreSQL less than 9.1.0, you'll need to run the installation script:

psql -d mydb -f /path/to/pgsql/share/contrib/unidecode.sql

If you want to install unidecode and all of its supporting objects into a specific schema, use the PGOPTIONS environment variable to specify the schema, like so:

PGOPTIONS=--search_path=extensions psql -d mydb -f unidecode.sql


You'll need PostgreSQL (obviously) and Python, if you are building it from git repo (or you can download last version with prebuilt data files from PGXN)

Copyright 2015, Alexander Kuznetsov <alexkuz@gmail.com>

This project uses transliteration tables from Python Unidecode library:

Original character transliteration tables:

Copyright 2001, Sean M. Burke <sburke@cpan.org>, all rights reserved.

Python code and later additions:

Copyright 2011, Tomaz Solc <tomaz@zemanta.com>