jackjlli commented on a change in pull request #6361:
URL: https://github.com/apache/incubator-pinot/pull/6361#discussion_r546005399
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File path:
pinot-core/src/main/java/org/apache/pinot/core/query/executor/ServerQueryExecutorV1Impl.java
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@@ -259,6 +260,18 @@ private DataTable processQuery(List<IndexSegment>
indexSegments, QueryContext qu
ExecutorService executorService, @Nullable
StreamObserver<Server.ServerResponse> responseObserver, long endTimeMs,
boolean enableStreaming)
throws Exception {
+
+ // Validate whether column names in the query are valid
+ Set<String> columnNamesFromSchema =
_instanceDataManager.getColumnNamesByTable(queryContext.getTableName());
+ Set<String> columnNamesFromQuery = queryContext.getColumns();
+ if (!columnNamesFromSchema.isEmpty() &&
!columnNamesFromSchema.containsAll(columnNamesFromQuery)) {
+ columnNamesFromQuery.removeAll(columnNamesFromSchema);
Review comment:
The `containsAll` method has already been used in
`DataSchemaSegmentPruner` class as well. And it gets called for every selected
segment. And here it is just done once.
The method `removeAll` here is invoked only when the if statement is
satisfied, so no extra execution on querying actual segments.
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