cloud-fan commented on code in PR #54434:
URL: https://github.com/apache/spark/pull/54434#discussion_r2844440160
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sql/core/src/main/scala/org/apache/spark/sql/execution/SQLExecution.scala:
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@@ -38,6 +38,43 @@ import org.apache.spark.sql.internal.SQLConf
import org.apache.spark.sql.internal.StaticSQLConf.SQL_EVENT_TRUNCATE_LENGTH
import org.apache.spark.util.{Utils, UUIDv7Generator}
+/**
+ * Captures SQL-specific thread-local variables so they can be restored on a
different thread.
+ * Use [[SQLExecution.captureThreadLocals]] to create an instance on the
originating thread,
+ * then call [[runWith]] on the target thread to execute a block with these
thread locals applied.
+ */
+case class SQLExecutionThreadLocalCaptured(
Review Comment:
nvm, this does not use `ThreadLocal` directly.
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