The whole thing consists of these main parts: 1. SQL parser: https://github.com/edgedb/edgedb/tree/master/edb/pgsql/parser https://github.com/edgedb/edgedb/tre

The whole thing consists of these main parts: 1. SQL parser: https://github.com/edgedb/edgedb/tree/master/edb/pgsql/parser https://github.com/edgedb/edgedb/tree/master/edb/pgsql/parse... 2. SQL transpiler: https://github.com/edgedb/edgedb/tree/master/edb/pgsql/parser https://github.com/edgedb/edgedb/tree/master/edb/pgsql/parse... 3. Wire protocol handler: https://github.com/edgedb/edgedb/blob/master/edb/server/protocol/pg_ext.pyx https://github.com/edgedb/edgedb/blob/master/edb/server/prot...