Does utf8_unicode_ci collation support Thai and Indonesian?
I'm creating a multilingual WordPress network/multisite. Each site in the network is dedicated for one country. There will be one site in Thai and another in Indonesian.
MySQL implements the xxx_unicode_ci collations according to the Unicode Collation Algorithm (UCA) described at http://www.unicode.org/reports/tr10/. The collation uses the version-4.0.0 UCA weight keys: http://www.unicode.org/Public/UCA/4.0.0/allkeys-4.0.0.txt ... Some characters are not supported yet.
The collations you're asking for should be covered in there (I've found Thai and Bahasa characters), but you better give it a try with some sample text before going live.