The Setting Input_format_defaults_for_omitted_fields Is Enabled by Default

The setting input_format_defaults_for_omitted_fields is enabled by default. Inserts in Distributed tables need this setting to be the same on cluster (you need to set it before rolling update). It enables calculation of complex default expressions for omitted fields in JSONEachRow and CSV* formats. It should be the expected behavior but may lead to negligible performance difference. #6043 (Artem Zuikov), #5625 (akuzm)