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https://issues.apache.org/jira/browse/KAFKA-8159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16802286#comment-16802286
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Sophie Blee-Goldman commented on KAFKA-8159:
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Consider also a user may not explicitly want or need to search a negative
keyspace, or have any negative keys, but could still find their streams app
crashing from a query of the range [key - delta, key + delta] if they ever see
a key < delta
> Multi-key range queries with negative keyFrom results in unexpected behavior
> ----------------------------------------------------------------------------
>
> Key: KAFKA-8159
> URL: https://issues.apache.org/jira/browse/KAFKA-8159
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Sophie Blee-Goldman
> Priority: Major
>
> If a user creates a queryable state store using one of the signed built-in
> serdes (eg Integer) for the key, there is nothing preventing records with
> negative keys from being inserted and/or fetched individually. However if the
> user tries to query the store for a range of keys starting with a negative
> number, unexpected behavior results that is store-specific.
>
> For RocksDB stores with caching disabled, Streams will silently miss and
> negative keys and return those from the range [0, keyTo].
> For in-memory stores and ANY store with caching enabled, Streams will throw
> an unchecked exception and crash.
>
> This situation should be handled more gracefully, or users should be informed
> of this limitation and the result should at least be consist across types of
> store.
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