[spark] Introduce TrimTransform for trim/ltrim/rtrim functions to pushdown #7273
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JingsongLi
requested changes
Feb 12, 2026
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| public static String trim(String value, String charsToTrim) { | ||
| if (value == null || charsToTrim == null) { |
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Thanks for reminder，Done.
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| public static final String RTRIM = "RTRIM"; | ||
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| private final String trimWay; |
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Create an enum Flag in this class. And values LEADING, TRAILING, BOTH.
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Purpose
Linked issue: close #xxx
The
trimfunction are frequently used. This PR supportstrim/ltrim/rtrimfunctions pushdown in Spark side.Note the automatic conversion in Spark, as follows:
trim(leading 'abc' from b) => ltrim('abc', b)
trim(tailing 'abc' from b) => rtrim('abc', b)
trim(both 'abc' from b) => trim('abc', b)
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