richardstartin commented on a change in pull request #8343:
URL: https://github.com/apache/pinot/pull/8343#discussion_r825271032
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File path:
pinot-core/src/main/java/org/apache/pinot/core/query/pruner/DataSchemaSegmentPruner.java
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@@ -35,7 +38,9 @@ public void init(PinotConfiguration config) {
@Override
public boolean prune(IndexSegment segment, QueryContext query) {
- return !segment.getColumnNames().containsAll(query.getColumns());
+ Set<String> columns =
+ query.getColumns().stream().map(col -> StringUtils.split(col, "$",
2)[0]).collect(Collectors.toSet());
Review comment:
This is already a common bottleneck when there are large numbers of
segments, I can show you some profiles, this will make it worse,
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