iverase commented on code in PR #13563:
URL: https://github.com/apache/lucene/pull/13563#discussion_r1681096883
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lucene/core/src/java/org/apache/lucene/index/CheckIndex.java:
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@@ -3301,17 +3301,17 @@ private static void checkDocValueSkipper(FieldInfo fi,
DocValuesSkipper skipper)
if (skipper.maxDocID(0) == NO_MORE_DOCS) {
break;
}
+ if (skipper.minDocID(0) < doc) {
+ throw new CheckIndexException(
+ "skipper dv iterator for field: "
+ + fieldName
+ + " reports wrong minDocID, got "
+ + skipper.minDocID(0)
+ + " < "
+ + doc);
+ }
int levels = skipper.numLevels();
for (int level = 0; level < levels; level++) {
- if (skipper.minDocID(level) < doc) {
- throw new CheckIndexException(
- "skipper dv iterator for field: "
- + fieldName
- + " reports wrong minDocID, got "
- + skipper.minDocID(level)
- + " < "
- + doc);
- }
Review Comment:
The current condition is `skipper.minDocID(level) < doc` where the doc is
the provided doc on advance. So the provided doc needs to be lower than or
equal to the minDocID not to trigger the error. I
It checks we have advance to the closer interval forward. This check is
strange as it is only valid for implementations with exact bounds and it is
clearly not valid for levels above 0.
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