object HistogramSerializer
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- final def deserialize(str: String): Histogram
Deserializes a given string to a histogram.
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- final def serialize(histogram: Histogram): String
Serializes a given histogram to a string.
Serializes a given histogram to a string. For advanced statistics like histograms, sketches, etc, we don't provide readability for their serialized formats in metastore (string-to-string table properties). This is because it's hard or unnatural for these statistics to be human readable. For example, a histogram usually cannot fit in a single, self-described property. And for count-min-sketch, it's essentially unnatural to make it a readable string.
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