davidm-db commented on code in PR #47462:
URL: https://github.com/apache/spark/pull/47462#discussion_r1688148053
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/SqlScriptingLogicalOperators.scala:
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@@ -58,3 +58,28 @@ case class SingleStatement(parsedPlan: LogicalPlan)
case class CompoundBody(
collection: Seq[CompoundPlanStatement],
label: Option[String]) extends CompoundPlanStatement
+
+/**
+ * Logical operator for IF ELSE statement.
+ * @param conditions Collection of conditions. First condition corresponds to
IF clause,
+ * while others (if any) correspond to following ELSE IF
clauses.
+ * @param bodies Collection of bodies.
+ */
+case class IfElseStatement(
+ conditions: Seq[SingleStatement],
+ bodies: Seq[CompoundBody]) extends CompoundPlanStatement
+
+/**
+ * Logical operator for while statement.
+ * @param condition Any expression evaluating to a Boolean.
+ * While the condition is evaluated true compound body is
executed.
Review Comment:
nit: it's a bit unclear what this line means. maybe something like "Body is
executed as long as the condition evaluates to true".
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