jpountz commented on a change in pull request #1394: LUCENE-9300: Fix field infos update on doc values update URL: https://github.com/apache/lucene-solr/pull/1394#discussion_r402228065
########## File path: lucene/core/src/java/org/apache/lucene/index/ReadersAndUpdates.java ########## @@ -543,27 +543,39 @@ public synchronized boolean writeFieldUpdates(Directory dir, FieldInfos.FieldNum try { // clone FieldInfos so that we can update their dvGen separately from - // the reader's infos and write them to a new fieldInfos_gen file - FieldInfos.Builder builder = new FieldInfos.Builder(fieldNumbers); - // cannot use builder.add(reader.getFieldInfos()) because it does not - // clone FI.attributes as well FI.dvGen + // the reader's infos and write them to a new fieldInfos_gen file. + int maxFieldNumber = -1; + Map<String, FieldInfo> newFields = new HashMap<>(); for (FieldInfo fi : reader.getFieldInfos()) { - FieldInfo clone = builder.add(fi); - // copy the stuff FieldInfos.Builder doesn't copy - for (Entry<String,String> e : fi.attributes().entrySet()) { - clone.putAttribute(e.getKey(), e.getValue()); - } - clone.setDocValuesGen(fi.getDocValuesGen()); + // cannot use builder.add(fi) because it does not preserve + // the local field number. Field numbers can be different from the global ones + // if the segment was created externally (with IndexWriter#addIndexes(Directory)). + FieldInfo clone = cloneFieldInfo(fi, fi.number); + newFields.put(clone.name, clone); + maxFieldNumber = Math.max(clone.number, maxFieldNumber); } // create new fields with the right DV type + FieldInfos.Builder builder = new FieldInfos.Builder(fieldNumbers); for (List<DocValuesFieldUpdates> updates : pendingDVUpdates.values()) { DocValuesFieldUpdates update = updates.get(0); - FieldInfo fieldInfo = builder.getOrAdd(update.field); - fieldInfo.setDocValuesType(update.type); + FieldInfo globalFieldInfo = builder.getOrAdd(update.field); + globalFieldInfo.setDocValuesType(update.type); Review comment: Sorry I suggested this on the previous review, but the doc-value type is actually supposed to be set on the updateDocValue call, so we should even be able to assert that the doc-value type is correct at this stage instead of setting it. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org