Wail Y. Alkowaileet created ASTERIXDB-3165:
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Summary: Avoid encoding PKs in columnar collections
Key: ASTERIXDB-3165
URL: https://issues.apache.org/jira/browse/ASTERIXDB-3165
Project: Apache AsterixDB
Issue Type: Bug
Components: STO - Storage
Affects Versions: 0.9.9
Reporter: Wail Y. Alkowaileet
Assignee: Wail Y. Alkowaileet
Fix For: 0.9.9
Currently, we encode every column (including the PKs). Encoding the PKs makes
point lookups too expensive when a secondary index is created.
We should avoid encoding the PKs and allow the following:
* Perform binary search for point lookups (vs. sequential search)
* Definition levels for PKs should remain encoded. However, we only decode
them (definition levels) if the search predicate yields a result
Optional improvements:
* Use a typed comparator instead of the generic one
* Avoid deserializing the search predicate
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