InferredField
What the catalog knows about one path.
A thin, named reading of a PathSketch against the document count, so that a caller asking "is this field always there" gets a ratio rather than having to divide two counters and know which denominator is the right one.
Properties
Mean encoded size of the value at this path, subtree included.
Numeric and text ranges.
Estimated distinct scalar values. Exact for low-cardinality paths; see PathSketch.
Whether distinctEstimate is exact.
The most common kind, or null if nothing was observed.
Whether the path holds one scalar type in every document that has it.
The share of observations whose value was the JSON null, as opposed to being absent.
Documents — or array elements — in which the path was present.
The path, with array indices collapsed. See CatalogPath.
The raw statistics this reading is derived from.
Observations by kind, largest first. See PathSketch.types.
The share of observations that took dominantType. One means the path has a single type.