@Override
    public Optional<String> getColumnOverride(SchemaAndTable key, String column) {
        return Optional.ofNullable(targetCaseOrNull(column));
    }
Constructor.
@param targetCase The characters of all table and column names will be converted to the specified letter-case.
@param locale The locale that is used for the letter-case conversion.
querydsl-sql/src/main/java/com/querydsl/sql/namemapping/ChangeLetterCaseNameMapping.java