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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2019/11/22 03:35:02 UTC
[GitHub] [incubator-iceberg] prodeezy opened a new pull request #668: Hybrid
Vectorized reader defaulting to Row-based reading
prodeezy opened a new pull request #668: Hybrid Vectorized reader defaulting to Row-based reading
URL: https://github.com/apache/incubator-iceberg/pull/668
This issue addresses Vectorized read milestone [issue#520](https://github.com/apache/incubator-iceberg/issues/520)
This reader defaults to row-based reading when it detects that vectorization isn't possible. Criteria for turning off vectorization is when, either `iceberg.read.disablebatchedreads` is set to true on as Reader options, Or, when Reader detects complex type in the projection schema. The former overrides the latter.
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