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This will correct/switch "year" unit diffing from the current integer
subtraction to a crono subtraction. Consequently, two dates are (at
least) one year apart now if (at least) a full calendar year separates
them. The previous implementation simply subtracted the year part of the
dates.
Note: this parts with ES SQL's implementation of the same function,
which itself is aligned with MS SQL's implementation, which works
equivalent to an integer subtraction.
Fixes #112482.
(cherry picked from commit f7ff00f645)
24 lines
798 B
Text
Generated
24 lines
798 B
Text
Generated
// This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
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*Examples*
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[source.merge.styled,esql]
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----
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include::{esql-specs}/date.csv-spec[tag=docsDateDiff]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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include::{esql-specs}/date.csv-spec[tag=docsDateDiff-result]
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When subtracting in calendar units - like year, month a.s.o. - only the fully elapsed units are counted.
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To avoid this and obtain also remainders, simply switch to the next smaller unit and do the date math accordingly.
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[source.merge.styled,esql]
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----
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include::{esql-specs}/date.csv-spec[tag=evalDateDiffYearForDocs]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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include::{esql-specs}/date.csv-spec[tag=evalDateDiffYearForDocs-result]
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|===
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