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The following commit(s) were added to refs/heads/branch-2.1 by this push:
new 2c358a1464b branch-2.1: [fix](Nereids) fix split part with regex not
exist in source string #48895 (#48910)
2c358a1464b is described below
commit 2c358a1464b9a729bcd90704ed284deb66b9b6be
Author: github-actions[bot]
<41898282+github-actions[bot]@users.noreply.github.com>
AuthorDate: Tue Mar 11 17:37:50 2025 +0800
branch-2.1: [fix](Nereids) fix split part with regex not exist in source
string #48895 (#48910)
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 df6d60ccc36..bc3317ea8d7 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
@@ -702,6 +702,9 @@ 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 64ed3e6ce65..734094eab86 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
@@ -582,6 +582,9 @@ 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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