YiwenWu commented on code in PR #3806:
URL: https://github.com/apache/calcite/pull/3806#discussion_r1623166995
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core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java:
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@@ -551,7 +551,7 @@ static RelDataType deriveTypeSplit(SqlOperatorBinding
operatorBinding,
public static final SqlFunction REGEXP_SUBSTR =
REGEXP_EXTRACT.withName("REGEXP_SUBSTR");
/** The "REGEXP(value, regexp)" function, equivalent to {@link #RLIKE}. */
- @LibraryOperator(libraries = {SPARK})
+ @LibraryOperator(libraries = {SPARK, HIVE})
Review Comment:
According to the official documentation, Hive does not support REGEXP(A, B).
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF
<img width="333" alt="image"
src="https://github.com/apache/calcite/assets/7956306/2cf95634-a354-45e1-a2eb-bb4e8dd08f98";>
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