const viewContainer = document.getElementById('view');
In the delrev incident
，这一点在wps中也有详细论述
Equal: Every domino half in this space must be the same number of pips.
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