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https://issues.apache.org/jira/browse/BEAM-7895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía updated BEAM-7895:
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Status: Open (was: Triage Needed)
> Plugging BeamCostModel and Metadata Handlers in JDBC Path
> ---------------------------------------------------------
>
> Key: BEAM-7895
> URL: https://issues.apache.org/jira/browse/BEAM-7895
> Project: Beam
> Issue Type: New Feature
> Components: dsl-sql
> Reporter: Alireza Samadianzakaria
> Priority: Major
>
> Currently the SQL Transform Path uses BeamCostModel and custom
> MetadataHandler for NonCumulativeCost.
> Similar to what we have done in CalciteQueryPlanner, we need to plug the
> followings in the JDBC Path:
> 1- Plug BeamCostModel.FACTORY as the CostFactory for the planner.
> 2- Plug NonCumulativeCostImpl.SOURCE for estimating nonCumulativeCost of the
> nodes.
> 3- Plug RelMdNodeStats.SOURCE as a handler to estimate NodeStatsSource.
>
> Alternatively, if we plug our cost model in JDBC path, since both paths are
> using the same cost model, we can remove NonCumulativeCostImpl.SOURCE as
> handler from both of them and instead of using beamComputeSelfCost(), we can
> override computeSelfCost for all the nodes.
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