19 lines
538 B
Plaintext
19 lines
538 B
Plaintext
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[[esql-mv_max]]
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=== `MV_MAX`
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Converts a multivalued field into a single valued field containing the maximum value. For example:
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[source,esql]
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----
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include::{esql-specs}/math.csv-spec[tag=mv_max]
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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,esql]
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----
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include::{esql-specs}/string.csv-spec[tag=mv_max]
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include::{esql-specs}/string.csv-spec[tag=mv_max-result]
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----
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