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[[esql-conditional-functions-and-expressions]]
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==== {esql} conditional functions and expressions
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++++
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<titleabbrev>Conditional functions and expressions</titleabbrev>
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++++
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Conditional functions return one of their arguments by evaluating in an if-else
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manner. {esql} supports these conditional functions:
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// tag::cond_list[]
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* <<esql-case>>
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* <<esql-coalesce>>
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* <<esql-greatest>>
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* <<esql-least>>
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// end::cond_list[]
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include::case.asciidoc[]
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include::coalesce.asciidoc[]
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include::greatest.asciidoc[]
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include::least.asciidoc[]
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