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kll_sketch_to_string_float function

Applies to: check marked yes Databricks Runtime 18.0 and later

Returns a human-readable string representation of a float KLL sketch for debugging.

Syntax​

kll_sketch_to_string_float ( sketch )

Arguments​

  • sketch: A BINARY expression containing a serialized FLOAT KLL sketch.

Returns​

A STRING containing debug information including: sketch parameters, item count, min/max values, and internal structure.

Notes​

  • Primarily intended for debugging and troubleshooting.
  • Output format may change between versions.