**Describe the bug** A clear and concise description of what the bug is. **To Reproduce** Steps to reproduce the behavior: 1. `SELECT double precision '1'` 2. Parsing this SQL using JSqlParser with this statements 3. `org.junit.ComparisonFailure: Expected query to parse but it failed to parse (error: Encountered unexpected token: "\'1\'" <S_CHAR_LITERAL>` **Expected behavior** query to parse **System** - postgres - 15 - 4.1