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- Keywords and Identifiers 9414
- Identifiers Similarly to other SQL dialects and programming languages, identifiers in DuckDB's SQL are subject to several rules. Unquoted identifiers need to conform to a number of rules: They must not be a reserved keyword (see duckdb_keyw
...function names are case-insensitive in DuckDB. For example, the following two queries are equivalent: select COS(Pi()) as CosineOfPi; SELECT cos(pi()) AS CosineOfPi; CosineOfPi -1.0 Case-Sensitivity of Identifiers Identifiers in DuckDB are always case-ins...ven if a query uses different cases when referring to the identifier. For example: CREATE TABLE tbl AS SELECT cos(pi()) AS CosineOfPi; SELECT cosineofpi FROM tbl; CosineOfPi -1.0 To change this behavior, use the preserve_identifier_case configuration optio...identifiers are turned into lowercase: SET preserve_identifier_case = 'lowercase'; CREATE TABLE tbl AS SELECT cos(pi()) AS CosineOfPi; SELECT CosineOfPi FROM tbl; cosineofpi -1.0 With preserve_identifier_case set to 'uppercase' , they are turned into upper... - https://man.mtool.work/duckdb/2.0/sql/dialect/keywords_and_identifiers.html
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