Primary keys are rightly the first tool users turn to when needing to accelerate queries. However, tables are limited to a single primary key, and query access patterns can render this ineffective i.e., for diverse use cases, queries which cannot exploit the primary key efficiently are inevitable. In these cases ClickHouse can be forced to perform a full table scan of each column when applying a WHERE clause condition. Often this will still be sufficiently fast, but in some cases users reach for data skipping indices, hoping to accelerate these queries easily.
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The Leica branding is splashed all over it in design and wallpapers, but it's otherwise pretty similar to the 17 Ultra, with the same specs. Like the 17 Ultra, it has a Snapdragon 8 Elite Gen 5 chip and a 6.9-inch 120Hz display. This one's priced at €1,999 (roughly $2,362).。关于这个话题，新收录的资料提供了深入分析
Ваня Дмитриенко выступит на ГАРАЖ ФЕСТ Игора Драйв в Санкт-Петербурге14:45