| column_references | Return the column references in a parsed SQL query |
| extract_alias | Extract the column alias from a SQL expression |
| parse_expression | Parse a SQL expression |
| parse_query | Parse a SQL query |
| split_query | Split a SQL query |
| squish_sql | Squish a SQL query or SQL expression |
| unqualify_query | Remove prefixes from column references in a parsed SQL query |