[GitHub] [doris] yiguolei commented on a diff in pull request #20085: [Improve](array-function)Improve array function intersect

["yiguolei (via GitHub)" <gi...@apache.org>]

yiguolei commented on code in PR #20085:
URL: https://github.com/apache/doris/pull/20085#discussion_r1217285233


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regression-test/suites/query_p0/sql_functions/array_functions/test_array_functions_by_literal.groovy:
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@@ -219,6 +219,12 @@ suite("test_array_functions_by_literal") {
     qt_sql "select (array(cast ('2023-02-06' as datev2), cast ('2023-02-05' as datev2)))[1:2]"
     qt_sql "select (array(cast (111.111 as decimalv3(6,3)),cast (222.222 as decimalv3(6,3))))[1:2]"
 
+    // array_intersect
+    qt_sql_intersect_1 "select array_intersect([1,2,3], [1,2,3], [null])"

Review Comment:
   Is the result stable? For example, sometimes return [null, 1] , sometimes return [1, null] ？ 



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