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https://issues.apache.org/jira/browse/BEAM-6874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Romanenko reassigned BEAM-6874:
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Assignee: Alexey Romanenko
> HCatalogTableProvider always read all rows
> ------------------------------------------
>
> Key: BEAM-6874
> URL: https://issues.apache.org/jira/browse/BEAM-6874
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql, io-java-hcatalog
> Affects Versions: 2.11.0
> Reporter: Near
> Assignee: Alexey Romanenko
> Priority: Major
> Attachments: limit.png
>
>
> Hi,
> I'm using HCatalogTableProvider while doing SqlTransform.query. The query is
> something like "select * from `hive`.`table_name` limit 10". Despite of the
> limit clause, the data source still reads much more rows (the data of Hive
> table are files on S3), even more than the number of rows in one file (or
> partition).
>
> Some more details:
> # It is running on Flink.
> # I actually implemented my own HiveTableProvider because HCatalogBeamSchema
> only supports primitive types. However, the table provider works when I query
> a small table with ~1k rows.
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