elasticsearch/docs/reference/query-languages/esql/_snippets/functions/parameters/bucket.md

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Parameters

field

Numeric or date expression from which to derive buckets.

buckets

Target number of buckets, or desired bucket size if from and to parameters are omitted.

from

Start of the range. Can be a number, a date or a date expressed as a string.

to

End of the range. Can be a number, a date or a date expressed as a string.