Changelog:
==============
- Show the host name in the error message in case of name resolution error
- Fix Cursor.copy() and AsyncCursor.copy() to hold the connection lock for the
entire operation, preventing concurrent access issues
- Fix GSSAPI check with C extension built with libpq < v16
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
