rdblue commented on code in PR #9421:
URL: https://github.com/apache/iceberg/pull/9421#discussion_r1443152002
##########
spark/v3.5/spark-extensions/src/main/scala/org/apache/spark/sql/catalyst/parser/extensions/IcebergSparkSqlExtensionsParser.scala:
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@@ -122,7 +128,27 @@ class IcebergSparkSqlExtensionsParser(delegate:
ParserInterface) extends ParserI
if (isIcebergCommand(sqlTextAfterSubstitution)) {
parse(sqlTextAfterSubstitution) { parser =>
astBuilder.visit(parser.singleStatement()) }.asInstanceOf[LogicalPlan]
} else {
- delegate.parsePlan(sqlText)
+ ViewSubstitutionExecutor.execute(delegate.parsePlan(sqlText))
+ }
+ }
+
+ private object ViewSubstitutionExecutor extends RuleExecutor[LogicalPlan] {
+ private val fixedPoint = FixedPoint(
+ maxIterations,
+ errorOnExceed = true,
+ maxIterationsSetting = SQLConf.ANALYZER_MAX_ITERATIONS.key)
+
+ override protected def batches: Seq[Batch] = Seq(Batch("pre-substitution",
fixedPoint, V2ViewSubstitution))
Review Comment:
Do we want to call this pre-substitution still? I originally used that
because I thought we wanted substitution rules in it. But it turns out that we
don't need this for view substitution, only for command hijacking. Maybe a
"Hijack Commands" batch?
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