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Mv Last

docs/reference/query-languages/esql/kibana/docs/functions/mv_last.md

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MV LAST

Converts a multivalue expression into a single valued column containing the last value. This is most useful when reading from a function that emits multivalued columns in a known order like SPLIT.

esql
ROW a="foo;bar;baz"
| EVAL last_a = MV_LAST(SPLIT(a, ";"))