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Diacritic Sensitivity in Searches

  • Article

By default, the Windows Search engine and catalog are insensitive to diacritics, which are accent marks added to letters to alter a word's meaning or pronunciation. However, Windows Search enables you to change this for your catalog using the Catalog Manager to set diacritic sensitivity. With diacritic sensitivity set to FALSE, the catalog would treat "resume" and "resumé" as if they were the same word.

At the query layer, query terms with diacritics in FREETEXT and CONTAINS clauses are passed through to the engine and are normalized as they are at index time for matching. Matching against the catalog is always diacritic sensitive.

Note  This is not the case for the character ranges 0x2e81-f8ff and 0x1100-0x11ff.