Resolves a dialect key to a new instance of its QueryDialect, such as 'mysql' or
'snowflake' for an External Data Source, or 'sqlserver' / 'postgresql' (which are full
SQLDialects). Built-in keys resolve directly; any other key resolves through a
class-factory registration under QueryDialect.
Resolves a dialect key to a new instance of its QueryDialect, such as
'mysql'or'snowflake'for an External Data Source, or'sqlserver'/'postgresql'(which are full SQLDialects). Built-in keys resolve directly; any other key resolves through a class-factory registration under QueryDialect.