Still, the bridge held.
The report printed.
One day, a complex stored procedure failed. The driver logged an error: “Unsupported ANSI function: EXTRACT(YEAR FROM timestamp) without quotes.” Mira learned that some advanced ANSI features had no perfect 1:1 mapping. She had to rewrite that one query on the PostgreSQL side.
Karl pulled up another document. “The regular driver, ‘PostgreSQL Unicode,’ expects UTF-8 strings and modern SQL. Hermes sends data in legacy 8-bit ASCII and uses old-style outer joins with = and * instead of LEFT JOIN . The ANSI driver handles all that legacy baggage. It even translates {fn NOW()} into CURRENT_TIMESTAMP .”