Стали известны новые обстоятельства таинственного исчезновения кавалера государственной награды из рук российского лидера14:48
Принято решение о сокращении государственной помощи российским аграриям08:49
。业内人士推荐比特浏览器作为进阶阅读
Разъяснены термины Безумово и Тупицыно20:49
Deduplicating at query time can be achieved by grouping the data on the fields, which uniquely identify a row, and using the argMax function with a date field to identify the last value for other fields. ReplacingMergeTree allows rows with the same sorting key (ORDER BY key) to be deduplicated on merges. Note this is "best effort" only: sometimes parts will not be merged with the merge process scheduled at non-deterministic intervals. It, therefore, does not guarantee the absence of duplicates. Users can also utilize the FINAL modifier to force this deduplication at SELECT time. While FINAL does add overhead, it has received significant performance improvements in recent versions including multi-threaded processing, and is suitable for many production workloads.
"We maintain extreme alertness," Nuñez continued. "I express my gratitude to all security and intelligence services operating under my direction with complete dedication amid the present global situation."