Translate non-aggregate string.Join to CONCAT_WS on SQL Server #28900
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As usual, this was a bit more tricky than it looks.
varchar(14)
. We don't have column/parameter values, so I'm setting the return mapping to be varchar(max) or nvarchar(max) (based on whether we've seen nvarchar or not). See below forCloses #28899
Interesting experiments for CONCAT_WS result type