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The following commit(s) were added to refs/heads/branch-3.0 by this push:
new cdbb07a57a4 branch-3.0: [fix](Nereids) fix split part with regex not
exist in source string #48895 (#48909)
cdbb07a57a4 is described below
commit cdbb07a57a4538fd216abd39a00747c645a86325
Author: github-actions[bot]
<41898282+github-actions[bot]@users.noreply.github.com>
AuthorDate: Sat Mar 15 10:11:32 2025 +0800
branch-3.0: [fix](Nereids) fix split part with regex not exist in source
string #48895 (#48909)
Cherry-picked from #48895
Co-authored-by: LiBinfeng <libinf...@selectdb.com>
---
.../trees/expressions/functions/executable/StringArithmetic.java | 3 +++
.../expression/fold_constant/fold_constant_string_arithmatic.groovy | 3 +++
2 files changed, 6 insertions(+)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/StringArithmetic.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/StringArithmetic.java
index 799bbb7585c..3a903308824 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/StringArithmetic.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/StringArithmetic.java
@@ -700,6 +700,9 @@ public class StringArithmetic {
return new NullLiteral(first.getDataType());
}
}
+ if (!first.getValue().contains(chr.getValue())) {
+ return new NullLiteral(first.getDataType());
+ }
String separator = chr.getValue();
String[] parts;
if (number.getValue() < 0) {
diff --git
a/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_string_arithmatic.groovy
b/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_string_arithmatic.groovy
index 74e5b60bff6..9f70f3f51aa 100644
---
a/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_string_arithmatic.groovy
+++
b/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_string_arithmatic.groovy
@@ -592,6 +592,9 @@ suite("fold_constant_string_arithmatic") {
testFoldConst("SELECT
split_part('a..b\$\$c||d((e))f[[g{{h^^i??j**k++l\\\\m','**', 2)")
testFoldConst("SELECT
split_part('a..b\$\$c||d((e))f[[g{{h^^i??j**k++l\\\\m','++', 2)")
testFoldConst("SELECT
split_part('a..b\$\$c||d((e))f[[g{{h^^i??j**k++l\\\\m','\\\\', 2)")
+ testFoldConst("select split_part('abc', ':', -1)")
+ testFoldConst("select split_part('abc', ':', 0)")
+ testFoldConst("select split_part('abc', ':', 1)")
// starts_with
testFoldConst("select starts_with('hello world','hello')")
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