关于
This skill provides deep technical access to PostgreSQL's internal grammar and parser logic, specifically referencing files like gram.y and parse_utilcmd.c. It is designed for developers building database tooling, schema migration engines, or custom SQL parsers who need to understand exactly how PostgreSQL handles statement structures, keyword precedence, and DDL variations. By leveraging the actual source code logic of the PostgreSQL parser, it ensures that generated SQL is valid and that complex parsing logic in tools like pgschema is accurately implemented.
