xzj7019 commented on code in PR #49416:
URL: https://github.com/apache/doris/pull/49416#discussion_r2011218660
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regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_string_arithmatic.groovy:
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@@ -1723,5 +1723,10 @@ suite("fold_constant_string_arithmatic") {
testFoldConst("select split_by_string('a😁a😁a', '')")
testFoldConst("select character_length('a😁a😁a')")
testFoldConst("select replace_empty('a😁a😁a', '', '2')")
+
+ // bug_fix
+ testFoldConst("select concat(substr('2025-03-20',1,4)-1,'-01-01')")
Review Comment:
check the behavior like 'concat(substr('2025-03-20',1,4)-1.0' and
'concat(substr('2025-03-20',1,4)-0.5', compatiable with mysql?
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