siddharthteotia commented on a change in pull request #6776:
URL: https://github.com/apache/incubator-pinot/pull/6776#discussion_r611820867
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File path:
pinot-core/src/main/java/org/apache/pinot/core/query/pruner/ColumnValueSegmentPruner.java
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@@ -238,6 +238,49 @@ private boolean pruneRangePredicate(IndexSegment segment,
RangePredicate rangePr
return false;
}
+ /**
+ * For IN predicate, prune the segment based on:
+ * <ul>
+ * <li>Column min/max value</li>
+ * </ul>
+ */
+ private boolean pruneInPredicate(IndexSegment segment, InPredicate
inPredicate, Map<String, DataSource> dataSourceCache) {
+ String column = inPredicate.getLhs().getIdentifier();
+ DataSource dataSource = dataSourceCache.computeIfAbsent(column,
segment::getDataSource);
+ // NOTE: Column must exist after DataSchemaSegmentPruner
+ assert dataSource != null;
+ DataSourceMetadata dataSourceMetadata = dataSource.getDataSourceMetadata();
+ List<String> values = inPredicate.getValues();
+ //set max threshold value
+ if (values.size() > _inPredicateThreshold) {
+ return false;
+ }
+
+ for (String value : values) {
+ Comparable inValue = convertValue(value,
dataSourceMetadata.getDataType());
+ if (!checkMinMaxRange(dataSourceMetadata, inValue)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ private boolean checkMinMaxRange(DataSourceMetadata dataSourceMetadata,
Comparable value) {
Review comment:
(nit) please add brief javadoc
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