Jesus Camacho Rodriguez created CALCITE-1795:
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Summary: Extend materialized view rewriting to produce rewritings
using Union operators
Key: CALCITE-1795
URL: https://issues.apache.org/jira/browse/CALCITE-1795
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
Fix For: 1.13.0
Extend join/aggregate materialized rewriting rule to produce rewritings using
Union operators, e.g., a given query could be partially answered from the MV
(year = 2014) and from the query (not(year=2014)). If the MV is stored e.g. in
Druid, this rewriting might be beneficial. As with the other rewritings,
decision on whether to finally use the rewriting is cost-based.
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