33 lines
830 B
Plaintext
33 lines
830 B
Plaintext
[discrete]
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[[esql-mv_max]]
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=== `MV_MAX`
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[.text-center]
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image::esql/functions/signature/mv_max.svg[Embedded,opts=inline]
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Converts a multivalued field into a single valued field containing the maximum value. For example:
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[source.merge.styled,esql]
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----
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include::{esql-specs}/math.csv-spec[tag=mv_max]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/math.csv-spec[tag=mv_max-result]
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|===
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It can be used by any field type, including `keyword` fields. In that case picks the
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last string, comparing their utf-8 representation byte by byte:
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[source.merge.styled,esql]
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----
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include::{esql-specs}/string.csv-spec[tag=mv_max]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/string.csv-spec[tag=mv_max-result]
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|===
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Supported types:
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include::types/mv_max.asciidoc[]
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