Scalar FunctionsOther Functions
dcount_hll
Calculate the distinct count from an HLL representation.
Syntax
dcount_hll(hll)Parameters
Prop
Type
Returns: long
Examples
Example 1
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.
next
Returns the value of a column from a row at a given offset after the current row in a serialized row set. A row set is serialized by the sort, top, top-hitters, or serialize operators; order-preserving operators (extend, project, where, ...) keep that property. Only valid in a serialized context.