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Date_math_expression doc to inform about format backport#39840 #39903 

The format since 7 should be compatible with java-time. Users should be informed about this on this page
backport#39840
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Przemyslaw Gomulka 2019-03-12 09:19:44 +01:00 committed by GitHub
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10
docs/reference/api-conventions.asciidoc
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@ -83,7 +83,7 @@ Where:
[horizontal]
`static_name`:: is the static text part of the name
`date_math_expr`:: is a dynamic date math expression that computes the date dynamically
`date_format`:: is the optional format in which the computed date should be rendered. Defaults to `YYYY.MM.dd`.
`date_format`:: is the optional format in which the computed date should be rendered. Defaults to `yyyy.MM.dd`. Format should be compatible with java-time https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
`time_zone`:: is the optional time zone. Defaults to `utc`.
Date math expressions are resolved locale-independent. Consequently, it is not possible to use any other
@ -133,9 +133,9 @@ they resolve to given the current time is 22rd March 2024 noon utc.
| Expression |Resolves to
| `<logstash-{now/d}>` | `logstash-2024.03.22`
| `<logstash-{now/M}>` | `logstash-2024.03.01`
| `<logstash-{now/M{YYYY.MM}}>` | `logstash-2024.03`
| `<logstash-{now/M-1M{YYYY.MM}}>` | `logstash-2024.02`
| `<logstash-{now/d{YYYY.MM.dd\|+12:00}}>` | `logstash-2024.03.23`
| `<logstash-{now/M{yyyy.MM}}>` | `logstash-2024.03`
| `<logstash-{now/M-1M{yyyy.MM}}>` | `logstash-2024.02`
| `<logstash-{now/d{yyyy.MM.dd\|+12:00}}>` | `logstash-2024.03.23`
|======
To use the characters `{` and `}` in the static part of an index name template, escape them
@ -145,7 +145,7 @@ with a backslash `\`, for example:
The following example shows a search request that searches the Logstash indices for the past
three days, assuming the indices use the default Logstash index name format,
`logstash-YYYY.MM.dd`.
`logstash-yyyy.MM.dd`.
[source,js]
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