davidm-db commented on code in PR #49427:
URL: https://github.com/apache/spark/pull/49427#discussion_r1916417583
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sql/core/src/main/scala/org/apache/spark/sql/scripting/SqlScriptingExecution.scala:
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@@ -97,18 +101,52 @@ class SqlScriptingExecution(
None
}
- private def handleException(e: Throwable): Unit = {
- // Rethrow the exception.
- // TODO: SPARK-48353 Add error handling for SQL scripts
- throw e
+ /**
+ * Advances through the script and executes statements until a result
statement or
+ * end of script is encountered.
+ *
+ * To know if there is result statement available, the method has to advance
through script and
+ * execute statements until the result statement or end of script is
encountered. For that reason
+ * the returned result must be executed before subsequent calls. Multiple
calls without executing
+ * the intermediate results will lead to incorrect behavior.
+ *
+ * @return Result DataFrame if it is available, otherwise None.
+ */
+ def getNextResult: Option[DataFrame] = {
+ try {
+ getNextResultInternal
+ } catch {
+ case e: SparkThrowable =>
+ handleException(e)
+ getNextResult // After handling the exception, try to get the next
result again.
+ case throwable: Throwable =>
+ throw throwable // Rethrow the exception.
+ }
+ }
+
+ private def handleException(e: SparkThrowable): Unit = {
+ context.findHandler(e.getCondition, e.getSqlState) match {
+ case Some(handler) =>
+ context.frames.addOne(
Review Comment:
nit: `append`
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