[SPARK-48748][SQL] Cache numChars in UTF8String #47142
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yaooqinn
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Jun 28, 2024
common/unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java
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HyukjinKwon
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Jun 29, 2024
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Thank you @uros-db , merged to master |
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What changes were proposed in this pull request?
Cache
numCharsvalue in a thread-safe way.Why are the changes needed?
Faster access to
numChars()method, which currently requires entire UTF8String scan every time.Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing tests.
Was this patch authored or co-authored using generative AI tooling?
No.