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https://issues.apache.org/jira/browse/SOLR-16243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-16243:
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Description:
We're going to have to up our SQL interpretation game in order to support more
complex query plans that include joins.
This ticket adds an approach that translates the Calcite parse tree into a tree
of "Implementor" nodes. The Implementor.getPhysicalPlan() method can then be
called to traverse the Implementor tree and return a Streaming Expression which
is the executable physical plan.
The approach allows for implementor nodes of different types to handle Join
logic. An example JoinImplementor is included in the PR which holds a left and
right Implementor and returns an InnerJoinStream.
was:
We're going to have to up our SQL interpretation game in order to support more
complex query plans that include joins.
This ticket adds an approach that translates the Calcite parse tree into a tree
of "Implementor" nodes. The Implementor.getPhysicalPlan() method can then be
called to traverse the Implementor tree and return a Streaming Expression which
is the executable physical plan.
The approach allows for implementor nodes of different types to handler Join
logic. An example JoinImplementor is included in the PR which holds a left and
right Implementor and returns an InnerJoinStream.
> Compile SQL to a Streaming Expression while visiting the Calcite SQL parse
> tree
> -------------------------------------------------------------------------------
>
> Key: SOLR-16243
> URL: https://issues.apache.org/jira/browse/SOLR-16243
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Parallel SQL
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Labels: RobustSQL
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We're going to have to up our SQL interpretation game in order to support
> more complex query plans that include joins.
> This ticket adds an approach that translates the Calcite parse tree into a
> tree of "Implementor" nodes. The Implementor.getPhysicalPlan() method can
> then be called to traverse the Implementor tree and return a Streaming
> Expression which is the executable physical plan.
> The approach allows for implementor nodes of different types to handle Join
> logic. An example JoinImplementor is included in the PR which holds a left
> and right Implementor and returns an InnerJoinStream.
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