Change default collation for charset?
Posted by: Niko Huffman
Date: December 19, 2009 05:32PM

The default collation for the "utf8" character set is "utf8_general_ci" but it appears that "utf8_general_ci" is not the most effective collation for an application with multi-language support (specifically for applications that involve search-indexing).

What is the proper procedure for changing the default collation for a specific character set, so that it's not necessary to include collation on every table creation?

It looks like it would involve something akin to the following updates:

UPDATE INFORMATION_SCHEMA.CHARACTER_SETS
SET DEFAULT_COLLATE_NAME = 'utf8_unicode_ci'
WHERE CHARACTER_SET_NAME = 'utf8';

UPDATE INFORMATION_SCHEMA.COLLATIONS SET IS_DEFAULT = ''
WHERE CHARACTER_SET_NAME = 'utf8' AND COLLATION_NAME = 'utf8_general_ci';

UPDATE INFORMATION_SCHEMA.COLLATIONS SET IS_DEFAULT = 'Yes'
WHERE CHARACTER_SET_NAME = 'utf8' AND COLLATION_NAME = 'utf8_unicode_ci';

Would this work? Is it safe?

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