nastra commented on code in PR #9945:
URL: https://github.com/apache/iceberg/pull/9945#discussion_r1526415663


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spark/v3.5/spark/src/main/java/org/apache/iceberg/spark/actions/SparkBinPackPositionDeletesRewriter.java:
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@@ -64,6 +64,8 @@ class SparkBinPackPositionDeletesRewriter extends 
SizeBasedPositionDeletesRewrit
     // Disable Adaptive Query Execution as this may change the output 
partitioning of our write
     this.spark = spark.cloneSession();
     this.spark.conf().set(SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), false);
+    // Because we're turning off AQE we need to turn off shuffle partitions 
b/c deletes rewriter makes a join later
+    this.spark.conf().set(SQLConf.SHUFFLE_PARTITIONS().key(), "1");

Review Comment:
   I checked and the test you added passes for me even when this isn't being 
forced to 1



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