Scalar FunctionsOther Functions

dcount_hll

Calculate the distinct count from an HLL representation.

Syntax

dcount_hll(hll)

Prop

Type

Returns: long

datatable(target:string)[
  "Lindisfarne",
  "York",
  "Lindisfarne",
  "Paris"
]
| summarize sketch = hll(target)
| project dcount_hll(sketch)

dcount_hll_sketch (long)
3

current_table

Returns the table name for the current row. Used internally by the search operator.

percentile_tdigest

Calculate the percentile from a t-digest representation.