当地时间2026年1月21日，韩国首尔，韩国总统李在明在青瓦台迎宾馆举行新年记者会。他表示，将致力于通过外交努力，帮助朝鲜和美国恢复双边对话，为重启韩朝对话铺平道路。
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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.
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This creates a troubling cycle. AI is eliminating the entry-level office positions that typically attract young professionals to technology fields—thereby reducing the potential candidate pool that could be retrained for technical trades. The technology simultaneously creates infrastructure demands while weakening the labor force's ability to fulfill them.
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