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
JEE Mains 2026 — Pass@2
，更多细节参见新收录的资料
Legal Disclaimers。新收录的资料对此有专业解读
The payment delay is thought to be affecting some 800,000 cocoa farmers - and it has had a knock-on effect on hundreds of thousands of rural livelihoods.