aokolnychyi commented on code in PR #6760:
URL: https://github.com/apache/iceberg/pull/6760#discussion_r1136500540
##########
spark/v3.3/spark/src/main/scala/org/apache/spark/sql/execution/datasources/SparkExpressionConverter.scala:
##########
@@ -36,15 +35,15 @@ object SparkExpressionConverter {
SparkFilters.convert(DataSourceStrategy.translateFilter(sparkExpression,
supportNestedPredicatePushdown = true).get)
}
- @throws[AnalysisException]
- def collectResolvedSparkExpression(session: SparkSession, tableName: String,
where: String): Expression = {
+ def collectResolvedSparkExpressionOption(session: SparkSession,
+ tableName: String, where: String):
Option[Expression] = {
val tableAttrs = session.table(tableName).queryExecution.analyzed.output
val unresolvedExpression =
session.sessionState.sqlParser.parseExpression(where)
val filter = Filter(unresolvedExpression, DummyRelation(tableAttrs))
val optimizedLogicalPlan =
session.sessionState.executePlan(filter).optimizedPlan
optimizedLogicalPlan.collectFirst {
- case filter: Filter => filter.condition
- }.getOrElse(throw new AnalysisException("Failed to find filter
expression"))
+ case filter: Filter => Some(filter.condition)
Review Comment:
Would it be fair to assume we would get back an empty local table scan back
if the condition is evaluated to false?
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