[GitHub] [iceberg] rdblue commented on a diff in pull request #5392: Spark: Fix a separate table cache being created for each rewriteFiles

[GitBox <gi...@apache.org>]

rdblue commented on code in PR #5392:
URL: https://github.com/apache/iceberg/pull/5392#discussion_r934011732


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spark/v3.3/spark/src/main/java/org/apache/iceberg/spark/actions/RewriteDataFilesSparkAction.java:
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@@ -489,7 +490,10 @@ private String jobDesc(RewriteFileGroup group, RewriteExecutionContext ctx) {
   }
 
   private BinPackStrategy binPackStrategy() {
-    return new SparkBinPackStrategy(table, spark());
+    // Disable Adaptive Query Execution as this may change the output partitioning of our write
+    SparkSession spark = spark().cloneSession();
+    spark.conf().set(SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), false);
+    return new SparkBinPackStrategy(table, spark);

Review Comment:
   Bin packing is used as the basis for the other strategies. If you're moving this into the action itself, then you should move it into `spark()`.



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