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A composite B-tree is still a sorted tree, but now entries are ordered first by severity, and then by timestamp within each severity value. This works great for this query shape: Postgres can jump directly to the portion of the tree matching severity
。新收录的资料对此有专业解读
lora_model.eval()。关于这个话题，新收录的资料提供了深入分析
Continue reading...，这一点在新收录的资料中也有详细论述