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concat() returns null if any parameter is null and none is an error. Change it to ignore nulls by treating them as zero-length strings. This matches SQL concat() semantics. f-strings are implemented via concat() so their behavior changes similarly.
mccanne
approved these changes
Mar 15, 2026
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concat() returns null if any parameter is null and none is an error. Change it to ignore nulls by treating them as zero-length strings. This matches SQL concat() semantics.
f-strings are implemented via concat() so their behavior changes similarly.
Fixes #6026.