Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
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。关于这个话题，heLLoword翻译官方下载提供了深入分析
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.，这一点在搜狗输入法2026中也有详细论述
The likes of Ducati, Honda, and Yamaha do battle for the constructors' championship. Marc Márquez is the defending champion.。谷歌浏览器【最新下载地址】对此有专业解读