huaxingao opened a new pull request, #5204:
URL: https://github.com/apache/iceberg/pull/5204
Currently iceberg throws Exception when using a filter on complex type:
```
org.apache.iceberg.spark.sql.TestSelect > testComplexTypeFilter[catalogName
= testhadoop, implementation = org.apache.iceberg.spark.SparkCatalog, config =
{type=hadoop}] FAILED
java.lang.IllegalArgumentException: Cannot create expression literal
from org.apache.spark.sql.catalyst.expressions.GenericRowWithSchema: [3,v1]
at org.apache.iceberg.expressions.Literals.from(Literals.java:87)
at
org.apache.iceberg.expressions.UnboundPredicate.<init>(UnboundPredicate.java:40)
at
org.apache.iceberg.expressions.Expressions.equal(Expressions.java:175)
at
org.apache.iceberg.spark.SparkFilters.handleEqual(SparkFilters.java:239)
at
org.apache.iceberg.spark.SparkFilters.convert(SparkFilters.java:152)
at
org.apache.iceberg.spark.source.SparkScanBuilder.pushFilters(SparkScanBuilder.java:101)
at
org.apache.spark.sql.execution.datasources.v2.PushDownUtils$.pushFilters(PushDownUtils.scala:69)
at
org.apache.spark.sql.execution.datasources.v2.V2ScanRelationPushDown$$anonfun$pushDownFilters$1.applyOrElse(V2ScanRelationPushDown.scala:60)
at
org.apache.spark.sql.execution.datasources.v2.V2ScanRelationPushDown$$anonfun$pushDownFilters$1.applyOrElse(V2ScanRelationPushDown.scala:47)
at
org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$transformDownWithPruning$1(TreeNode.scala:481)
at
org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:82)
at
org.apache.spark.sql.catalyst.trees.TreeNode.transformDownWithPruning(TreeNode.scala:481)
at
org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.org$apache$spark$sql$catalyst$plans$logical$AnalysisHelper$$super$transformDownWithPruning(LogicalPlan.scala:30)
at
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.transformDownWithPruning(AnalysisHelper.scala:267)
at
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.transformDownWithPruning$(AnalysisHelper.scala:263)
at
org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.transformDownWithPruning(LogicalPlan.scala:30)
```
This PR fixes the problem by not pushing down filters for complex type.
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