Github user LantaoJin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20803#discussion_r176320495
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala
---
@@ -635,7 +637,8 @@ class SparkSession private(
* @since 2.0.0
*/
def sql(sqlText: String): DataFrame = {
- Dataset.ofRows(self, sessionState.sqlParser.parsePlan(sqlText))
+ Dataset.ofRows(self, sessionState.sqlParser.parsePlan(sqlText),
+ substitutor.substitute(sqlText))
--- End diff --
> the following case shows a misleading and wrong SQL statement instead of
real executed SQL plan.
Yes. We know this, so current implementation which bind sql text to DF is
not good.
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