[
https://issues.apache.org/jira/browse/PARQUET-425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ryan Blue updated PARQUET-425:
------------------------------
Fix Version/s: (was: 1.9.0)
> Fix the bug when predicate contains columns not specified in prejection, to
> prevent filtering out data improperly
> -----------------------------------------------------------------------------------------------------------------
>
> Key: PARQUET-425
> URL: https://issues.apache.org/jira/browse/PARQUET-425
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Affects Versions: 1.8.0, 1.8.1
> Reporter: Liwei Lin(Inactive)
> Assignee: Liwei Lin(Inactive)
>
> As is reported in Parquet-427, data will be filtered out improperly under the
> case where:
> 1. predicates - requested schema ≠ ∅
> 2. predicates - file schema ＝ ∅
> To give an example:
> data:
> |a|b|
> |1|1|
> |2|2|
> |3|3|
> file schema: a,b, requested schema: a, and predicate: b = 1
> we should get:
> |a|
> |1|
> but we'll end up get nothing, which is wrong.
> This issue proposes to fix this.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
