Using a sequential (i.e., non-UUID) primary key creates hot spots in the database for write-heavy workloads, since concurrentINSERTs to the table will attempt to write to the same (or nearby) underlyingranges. This can be mitigated by designing your schema withmulti-column primary keys whic...
If the Variable has been set toMultiple Single Values, the Selection icon brings up a different window which allows the dragging and dropping of multiple values. These are represented as multiple Keys divided by semi-colons. A Variable set toSelection Optionallows the selection of Value Ranges as...
The attributes Id and Velocity are encoded into DNA. Id is the primary key, but Velocity allows duplicate values. This enables answering ad-hoc filter queries on the encoded attributes, and the method is detailed in the following section. Figure 2b shows how the overall error declines with ...
Specifically, keys in the inverted index are names of collections and names of leaf fields (we do not consider field paths, because they cannot be expressed in the blind query q). In Figure 3, for the sake of clarity we depicted four different databases. Of course, they could be fused ...