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https://issues.apache.org/jira/browse/ARROW-15238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weston Pace updated ARROW-15238:
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Labels: query-engine (was: )
> [C++] Create "engine" module for the query engine
> -------------------------------------------------
>
> Key: ARROW-15238
> URL: https://issues.apache.org/jira/browse/ARROW-15238
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Weston Pace
> Priority: Major
> Labels: query-engine
>
> Circular dependencies are popping up in the query engine as the compute
> module is very low level. For example, it would be nice if the default
> registry included the scan node and dataset write node. We will want to be
> adding spillover support at some point and that will rely on parquet/dataset
> operations.
> We should create a dedicated engine module which includes the query plans,
> the nodes, etc. This module would not contain the kernels or other low level
> compute primitives. This way we could have something like...
> engine -> datasets (for scanning) -> parquet -> compute (for calculating
> statistics)
> The base ExecPlan itself could either go in compute or engine depending on
> which has the least amount of friction.
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