Jackie-Jiang commented on a change in pull request #6922:
URL: https://github.com/apache/incubator-pinot/pull/6922#discussion_r633953274
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File path:
pinot-core/src/main/java/org/apache/pinot/core/minion/SegmentConverter.java
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@@ -89,6 +95,21 @@ public SegmentConverter(List<File> inputIndexDirs, File
workingDir, String table
_recordAggregator = recordAggregator;
_groupByColumns = groupByColumns;
_skipTimeValueCheck = skipTimeValueCheck;
+
+ // Validate that segment schemas from all segments are the same
+ Set<Schema> schemas = new HashSet<>();
+ for (File indexDir : inputIndexDirs) {
+ try {
+ schemas.add(new SegmentMetadataImpl(indexDir).getSchema());
+ } catch (IOException e) {
+ throw new RuntimeException("Caught exception while reading schema
from: " + indexDir);
+ }
+ }
+ if (schemas.size() == 1) {
+ _schema = schemas.iterator().next();
+ } else {
+ throw new IllegalStateException("Schemas from input segments are not the
same");
+ }
Review comment:
Good suggestion. Submit a PR to fix it:
https://github.com/apache/incubator-pinot/pull/6931
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