soumyakanti3578 commented on code in PR #6103:
URL: https://github.com/apache/hive/pull/6103#discussion_r2467770051
##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveRelFieldTrimmer.java:
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@@ -203,6 +206,26 @@ protected RexNode handle(RexFieldAccess fieldAccess) {
return dispatchTrimFields(input, fieldsUsedBuilder.build(), extraFields);
}
+ private static void setColumnAccessInfoForViews(RelNode rel, ImmutableBitSet
fieldsUsed) {
+ final ColumnAccessInfo columnAccessInfo = COLUMN_ACCESS_INFO.get();
+ final Map<RelNode, Pair<Table, List<RexNode>>> relNodeToTableAndProjects =
VIEW_RELNODE_TO_TABLE_AND_PROJECTS.get();
+
+ // HiveTableScans are handled separately in HiveTableScan's trimFields
method.
+ if (!(rel instanceof HiveTableScan) &&
+ columnAccessInfo != null &&
+ relNodeToTableAndProjects != null &&
+ relNodeToTableAndProjects.containsKey(rel)) {
+ Table table =
Objects.requireNonNull(relNodeToTableAndProjects.get(rel).left);
+ List<RexNode> projects = relNodeToTableAndProjects.get(rel).right;
+ List<FieldSchema> tableAllCols = table.getAllCols();
+ for (Ord<RexNode> ord : Ord.zip(projects)) {
+ if (fieldsUsed.get(ord.i)) {
+ columnAccessInfo.add(table.getCompleteName(),
tableAllCols.get(ord.i).getName());
+ }
+ }
Review Comment:
Thanks for the suggestion! I have simplified this in the latest version.
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