wuchong commented on a change in pull request #11340: [Flink 14338] Upgrade 
Calcite version to 1.22 for Flink SQL
URL: https://github.com/apache/flink/pull/11340#discussion_r393483443
 
 

 ##########
 File path: 
flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/planner/delegation/PlannerContext.java
 ##########
 @@ -159,40 +155,21 @@ public FlinkTypeFactory getTypeFactory() {
         * @return configured rel builder
         */
        public FlinkRelBuilder createRelBuilder(String currentCatalog, String 
currentDatabase) {
-               FlinkCalciteCatalogReader relOptSchema = 
createCatalogReader(false, currentCatalog, currentDatabase);
+               FlinkCalciteCatalogReader relOptSchema = createCatalogReader(
+                               false,
+                               currentCatalog,
+                               currentDatabase);
 
-               Context chain = Contexts.chain(
+               Context chain = Contexts.of(
                        context,
                        // We need to overwrite the default scan factory, which 
does not
                        // expand views. The expandingScanFactory uses the 
FlinkPlanner to translate a view
                        // into a rel tree, before applying any subsequent 
rules.
 
 Review comment:
   The comment is not suitable anymore, please adapt it. 

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