SQL
Literals and Identifiers
* [Case-insensitivity while maintaining case of entities in the catalog](#docs:sql:dialect:keywords_and_identifiers::case-sensitivity-of-identifiers)
* [Deduplicating identifiers](#docs:sql:dialect:keywords_and_identifiers::deduplicating-identifiers)
* [Underscores as digit separators in numeric literals](#docs:sql:dialect:keywords_and_identifiers::numeric-literals)