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* Break out 'Limitations' into separate page * Add REST API docs * Restructure commands, functions, and operators refs * Add placeholder for getting started guide * Group 'Syntax', 'Metafields', and 'MV fields' under 'Language' * Add placeholder for Kibana page * Add link from landing page * Apply uniform formatting to ACOS, CASE, and DATE_PARSE function refs * Reword default LIMIT * Add support for COUNT(*) * Move 'Commands' and 'Functions and operators' to individual pages --------- Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
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611 B
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27 lines
No EOL
611 B
Text
[discrete]
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[[esql-agg-count]]
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=== `COUNT`
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Counts field values.
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[source.merge.styled,esql]
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----
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include::{esql-specs}/stats.csv-spec[tag=count]
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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}/stats.csv-spec[tag=count-result]
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|===
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Can take any field type as input and the result is always a `long` not matter
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the input type.
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To count the number of rows, use `COUNT(*)`:
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[source.merge.styled,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=countAll]
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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}/docs.csv-spec[tag=countAll-result]
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|=== |