[AURON #1538] Implement native function of reverse.#1540
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richox merged 1 commit intoapache:masterfrom Oct 31, 2025
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[AURON #1538] Implement native function of reverse.#1540richox merged 1 commit intoapache:masterfrom
reverse.#1540richox merged 1 commit intoapache:masterfrom
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Signed-off-by: slfan1989 <slfan1989@apache.org>
slfan1989
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reverse.
richox
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Oct 31, 2025
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Which issue does this PR close?
Closes #1538.
Rationale for this change
The rationale behind this change is to implement a native
reversefunction for better compatibility with Spark SQL and to reduce dependency on UDFs. This function supports string inputs and ensures consistent behavior with Spark’s built-in functions.What changes are included in this PR?
This PR introduces a new native scalar function
reverse(expr), which supportsUtf8string types, as well as mixed scalar and column vector inputs. It also ensures that the Null semantics align with Spark’s behavior.Are there any user-facing changes?
Yes, users will now have access to the native reverse function for strings
How was this patch tested?
CI & Junit Test.