[7.x] Fix sort on nanosecond date fields with missing values (#74760)#75065
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cbuescher merged 2 commits intoelastic:7.xfrom Jul 7, 2021
Merged
[7.x] Fix sort on nanosecond date fields with missing values (#74760)#75065cbuescher merged 2 commits intoelastic:7.xfrom
cbuescher merged 2 commits intoelastic:7.xfrom
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For missing values on date fields we use Long.MIN_VALUE by default. This is okay when the resolution of the field is milliseconds. For nanoseconds though, negative values can lead to IllegalArgumentExpections when we try to format them internally. This change fixes this by explicitely setting the minimum value to 0L (which corresponds to 1970-01-01T00:00:00.000 for nanosecond resolution) when no other explicit missing value is defined and the target numeric type is a nanosecond type (this is true for nanosecond fields and when "numeric_type" is explicitely set). This way we correct the behaviour for single typed indices and cases where we are sorting across multiple indices with mixed "date" and "date_nanos" type where "numeric_type" is set in the sort definition. Closes elastic#73763
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Backports the following commits to 7.x: