Improvements

• Add MSSQL support via native sqlcmd CLI
• Add more options for expanding the empty selection. Instead of config option expand_to_paragraph, introduce new option called expand_to, which can be configured to expand empty selection to: line, paragraph or file
• General review/improvement of each DB config
• Use the encoding option supplied in connection settings when writing to standard input and reading from standard output of CLI command
• Changes how top level and per-query options apply to CLI invocations
• Changes how before and after applied (top level and per-query)
• Introduction of new execute named query section which is used when executing statements with ST: Execute and friends
• Now all named query formatting is done via str.format(), therefore all instances of %s in template strings got replaced with {0}, with back-patch support (i.e. %s should still work for those users who have it on their own user config)
• Improve the way the output is shown - the output panel is not shown until the first output from DB CLI arrives
• Add sample connections for Vertica and Firebird
• [PostgreSQL] Connection options host, port, username are now optional (can be set via environment vars and other means)
• [MySQL] Add configurable connection option default-character-set
• [MySQL] Add --no-auto-rehash and --compress to improve MySQL startup time and improve latency on slow networks
• [MySQL] Connection options host, port, username are now optional (can be set via --defaults-extra-file and --login-path)
• [MySQL] Supply password via environment variable MYSQL_PWD to avoid security warning
• [Oracle] Add ability to configure NSL_LANG to match the server encoding
• [Oracle] Add support for quoted table and column names
• [Oracle] Add support for functions & procedures completions as well as getting and functions & procedures definitions (both top level and those in packages)
• [Vertica] Add support for quoted identifiers
• Other minor improvements

Fixes

• Remove unused settings option unescape_quotes from config