Github user JamesRTaylor commented on a diff in the pull request: https://github.com/apache/phoenix/pull/34#discussion_r22997186 --- Diff: phoenix-core/src/main/java/org/apache/phoenix/index/IndexMaintainer.java --- @@ -883,6 +903,14 @@ public void readFields(DataInput input) throws IOException { dataEmptyKeyValueCF = Bytes.readByteArray(input); emptyKeyValueCFPtr = new ImmutableBytesPtr(Bytes.readByteArray(input)); + int numIndexedExpressions = WritableUtils.readVInt(input); + indexedExpressions = Sets.newLinkedHashSetWithExpectedSize(numIndexedExpressions); + for (int i = 0; i < numIndexedExpressions; i++) { --- End diff -- How does this interop with having a mix of pure data columns in the ON clause with functional expressions? The order is significant as far as I remember, so I think you'll want to have both in the same list.
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