feat: support concat
#2604
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feat: support concat
#2604
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Depends on #2586 |
andygrove
reviewed
Oct 21, 2025
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| test("test concat function - strings") { |
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Concat supports other types as well:
private def allowedTypes: Seq[AbstractDataType] = Seq(StringType, BinaryType, ArrayType)There was a problem hiding this comment.
Thanks @andygrove this PR for string only
ArrayType waits for apache/datafusion#18020
I dont see binary type support though https://spark.apache.org/docs/latest/api/sql/#concat
UPD: Binary it is probably a specific case of array concat
scala> spark.sql("select concat(to_binary('abc'), to_binary('def'))").show(false)
+--------------------------------------+
|concat(to_binary(abc), to_binary(def))|
+--------------------------------------+
|[0A BC 0D EF] |
+--------------------------------------+
I'll check this
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Which issue does this PR close?
Closes #2552 .
Rationale for this change
What changes are included in this PR?
How are these changes tested?