kasakrisz commented on code in PR #3246:
URL: https://github.com/apache/hive/pull/3246#discussion_r859840470


##########
ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java:
##########
@@ -2107,7 +2108,10 @@ private boolean 
isMaterializedViewRewritingByTextEnabled() {
     }
 
     private RelNode applyMaterializedViewRewritingByText(
-            ASTNode queryToRewriteAST, RelNode originalPlan, RelOptCluster 
optCluster) {
+            ASTNode queryToRewriteAST,
+            RelNode originalPlan,
+            RelOptCluster optCluster,
+            RelMetadataProvider metadataProvider) {

Review Comment:
   It returns a different provider.
   
[removeSubqueries](https://github.com/apache/hive/blob/7583142cbffcb3958a546a9aaa15700bbc243df9/ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java#L2395)
 could also get a provider from the plan in it's 1st param like
   
   ```
   basePlan.getCluster().getMetadataProvider()
   ```
   However this does not returns the same instance passed in the 2nd parameter.
   
   
   One provider instance has 14 entries the other one has 22.



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