Binfile import ran the whole import in a single transaction with
idle_in_transaction_session_timeout disabled (= 0), so a stalled
import could retain a connection pool slot indefinitely. Set a
finite 20 minutes ceiling via SET LOCAL instead (a compile-time
constant interpolated into the SQL; PostgreSQL does not accept bind
parameters on SET).
The v3 importer also located each file data by rescanning the full
zip entry collection once per manifest file and once per page,
making the cost close to quadratic on large files. Replace the
per-file regex matchers with a single classification pass that
groups entries by their raw path shape; consumers now lookup their
entries per file and page. As a deliberate tightening, the .json
suffix is matched literally: the previous regexes left the dot
unescaped, so crafted paths like files/<f>/tokensXjson or
objects/x-json matched by accident and are now ignored.
Closes#11579
AI-assisted-by: omen-alpha
7e1d5f3e88