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This copies the first line of the description of each command to just under the syntax so that it's "in order", before the `Parameters` section. That way if you are reading from top to bottom you see: ``` syntax short description parameter names and descriptions long description examples ``` I've also removed the `Description` section entirely if the description was just one sentence. So in some cases that just isn't `long description`.
63 lines
1.4 KiB
Text
63 lines
1.4 KiB
Text
[discrete]
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[[esql-sort]]
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=== `SORT`
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The `SORT` processing command sorts a table on one or more columns.
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**Syntax**
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[source,esql]
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----
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SORT column1 [ASC/DESC][NULLS FIRST/NULLS LAST][, ..., columnN [ASC/DESC][NULLS FIRST/NULLS LAST]]
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----
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*Parameters*
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`columnX`::
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The column to sort on.
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*Description*
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The `SORT` processing command sorts a table on one or more columns.
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The default sort order is ascending. Use `ASC` or `DESC` to specify an explicit
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sort order.
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Two rows with the same sort key are considered equal. You can provide additional
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sort expressions to act as tie breakers.
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Sorting on multivalued columns uses the lowest value when sorting ascending and
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the highest value when sorting descending.
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By default, `null` values are treated as being larger than any other value. With
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an ascending sort order, `null` values are sorted last, and with a descending
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sort order, `null` values are sorted first. You can change that by providing
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`NULLS FIRST` or `NULLS LAST`.
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*Examples*
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=sort]
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----
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Explicitly sorting in ascending order with `ASC`:
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=sortDesc]
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----
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Providing additional sort expressions to act as tie breakers:
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=sortTie]
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----
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Sorting `null` values first using `NULLS FIRST`:
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=sortNullsFirst]
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----
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