Firebird 3.0.3 (64-bit)

What's new in this version:

- Make faster engine response on cancel\shutdown signals when scanning long list of pointer pages
- Access to the name of DB encryption key
- Avoid UPDATE of RDB$DATABASE by ALTER DATABASE statement when possible
- When database validation fixes "orphan page" errors it now adjusts "lowest free page" marker (pip_min) on corresponding PIP, if necessary
- Consider equivalence classes for index navigation
- Allow unused Common Table Expressions
- Make flush of big number of dirty pages faster
- Avoid serialization of isc_attach_database calls issued by EXECUTE STATEMENT implementation
- GSTAT output now includes datetime of analysis
- Improve physical backup merge stage performance, especially with huge page cache
- Provide info about database (or alias) which was in use during "Error during sweep: connection shutdown"
- Improve ALTER DOMAIN performance with many dependencies
- Restore of pre ODS 11.1 database can leave RDB$RELATION_TYPE null
- Database backup using Nbackup is now faster when directed to NAS over SMB protocol
- Estimate the actual record compression ratio in the optimizer
- Add details on compression and crypt status of connection (fb_info_conn_flags) to getInfo() API call
- 68 bugs fixed