Merge pull request ClickHouse#90703 from ClickHouse/backport/25.8/90474

clickhouse-gh[bot] · web-flow · commit 0ecc1b166ab6 · 2025-11-24T12:48:35.000Z
Backport ClickHouse#90474 to 25.8: Fix(Hive): Fix thread-safety race condition in static extractor
diff --git a/src/Storages/HivePartitioningUtils.cpp b/src/Storages/HivePartitioningUtils.cpp
@@ -34,7 +34,7 @@ static auto makeExtractor()
 
 HivePartitioningKeysAndValues parseHivePartitioningKeysAndValues(const String & path)
 {
-    static auto extractor = makeExtractor();
+    thread_local auto extractor = makeExtractor();
 
     HivePartitioningKeysAndValues key_values;
 

Original file line number	Diff line number	Diff line change
`@@ -34,7 +34,7 @@ static auto makeExtractor()`
`34`	`34`
`35`	`35`	`HivePartitioningKeysAndValues parseHivePartitioningKeysAndValues(const String & path)`
`36`	`36`	`{`
`37`		`- static auto extractor = makeExtractor();`
	`37`	`+ thread_local auto extractor = makeExtractor();`
`38`	`38`
`39`	`39`	`HivePartitioningKeysAndValues key_values;`
`40`	`40`