gatorsmile commented on a change in pull request #26977: [SPARK-30326][SQL]
Raise exception if analyzer exceed max iterations
URL: https://github.com/apache/spark/pull/26977#discussion_r376839314
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala
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@@ -155,8 +162,9 @@ abstract class RuleExecutor[TreeType <: TreeNode[_]]
extends Logging {
if (iteration > batch.strategy.maxIterations) {
// Only log if this is a rule that is supposed to run more than once.
if (iteration != 2) {
- val message = s"Max iterations (${iteration - 1}) reached for
batch ${batch.name}"
- if (Utils.isTesting) {
+ val message = s"Max iterations (${iteration - 1}) reached for
batch ${batch.name}, " +
+ s"increasing the value of
'${SQLConf.ANALYZER_MAX_ITERATIONS.key}'."
Review comment:
Actually, this change is not right. The optimizer will also issue this
message.
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