[SPARK-58441][SQL] Fix wrong results in instr and substring_index for ICU collations caused by inconsistent StringSearch iteration - #57647

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jiwen624:SPARK-58441

Commits on Aug 1, 2026

[SPARK-58441][SQL] Fix wrong results in instr and substring_index for ICU collations caused by inconsistent StringSearch iteration
jiwen624
committed
623585a

Commits on Aug 2, 2026

[SPARK-58441][SQL] Avoid scanning the whole target in backward ICU string search
jiwen624
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907aa73

Commits on Aug 4, 2026