Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/14132#discussion_r71826514
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/catalyst/SQLBuilder.scala ---
@@ -193,6 +196,9 @@ class SQLBuilder(logicalPlan: LogicalPlan) extends
Logging {
case OneRowRelation =>
""
+ case Hint(_, _, child) =>
--- End diff --
I remember the reason. Originally, I designed `Hint` is removed by some
rules of `Analyzer` or `Optimizer`. But, now, it's changed. Only rules of
`Analyzer` handles that and removes all unknown hints. `CheckAnalysis` is the
correct position.
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