Chinmay Kolhatkar created CALCITE-1440:
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Summary: Implement planner for converting multiple SQL statements
to unified RelNode Tree
Key: CALCITE-1440
URL: https://issues.apache.org/jira/browse/CALCITE-1440
Project: Calcite
Issue Type: New Feature
Reporter: Chinmay Kolhatkar
Assignee: Julian Hyde
This can be implemented as a seperate planner or in VolcanoPlanner itself. The
planner should take multiple SQL statements as input and return a unified
RelNode Tree.
Example of above is as follows:
SELECT COL1, COL2 FROM TABLE WHERE COL3 > 10;
SELECT COL1, COL2 FROM TABLE WHERE COL4 = 'abc';
Above 2 statements has a common path and hence can provide an unified RelNode
tree as follows:
[Scan] -> [Project (COL1, COL2)] -> [Filter (COL4 = 'abc')] -> [Delta]
|
V
[Filter (COL3 > 10)]
|
v
[Delta]
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