[SPARK-47411][SQL] Support StringInstr & FindInSet functions to work with collated strings #45643
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@cloud-fan @uros-db @mihailom-db can you take a look at this changes please? |
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# Conflicts: # common/unsafe/src/main/java/org/apache/spark/sql/catalyst/util/CollationSupport.java # sql/core/src/test/scala/org/apache/spark/sql/CollationStringExpressionsSuite.scala
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thanks, merging to master! |
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…with collated strings ### What changes were proposed in this pull request? Extend built-in string functions to support non-binary, non-lowercase collation for: instr & find_in_set. ### Why are the changes needed? Update collation support for built-in string functions in Spark. ### Does this PR introduce _any_ user-facing change? Yes, users should now be able to use COLLATE within arguments for built-in string functions INSTR and FIND_IN_SET in Spark SQL queries, using non-binary collations such as UNICODE_CI. ### How was this patch tested? Unit tests for queries using "collate" (CollationSuite). ### Was this patch authored or co-authored using generative AI tooling? No Closes apache#45643 from miland-db/miland-db/substr-functions. Authored-by: Milan Dankovic <milan.dankovic@databricks.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>
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What changes were proposed in this pull request?
Extend built-in string functions to support non-binary, non-lowercase collation for: instr & find_in_set.
Why are the changes needed?
Update collation support for built-in string functions in Spark.
Does this PR introduce any user-facing change?
Yes, users should now be able to use COLLATE within arguments for built-in string functions INSTR and FIND_IN_SET in Spark SQL queries, using non-binary collations such as UNICODE_CI.
How was this patch tested?
Unit tests for queries using "collate" (CollationSuite).
Was this patch authored or co-authored using generative AI tooling?
No