[DOCS] Document breaking change for date histogram format. (#40870) (#41231)

Documents breaking changes for data frames introduced in #39811.
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Walter Rafelsberger 2019-07-16 14:12:43 +02:00 committed by GitHub
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@ -27,8 +27,17 @@ The following section is re-used in the Installation and Upgrade Guide
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// tag::notable-breaking-changes[]
[float]
[[breaking_73_data_frames_date_format]]
=== Removed support for date histogram format specifications in {dataframe-transforms}
*Details:* If your {dataframe-transform} groups your data by using a date
histogram, the `format` property is no longer supported.
*Impact:* {dataframe-transforms-cap} that were created in 7.2 and use date
histograms might no longer work in 7.3. If you run into issues starting a
transform, recreate it by copying the `pivot` part of the configuration into the
advanced editor of the {dataframe-transforms} wizard. The advanced editor will
remove the unsupported attribute once the configuration gets applied.
// end::notable-breaking-changes[]