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e113f9c102
Previously, tsearch used the database's CTYPE setting, which only matches the database default collation if the locale provider is libc. Note that tsearch types (tsvector and tsquery) are not collatable types. The locale affects parsing the original text, which is a lossy process, so a COLLATE clause on the already-parsed value would not make sense. Reviewed-by: Peter Eisentraut <peter@eisentraut.org> Discussion: https://postgr.es/m/0151ad01239e2cc7b3139644358cf8f7b9622ff7.camel@j-davis.com