Julian Hyde created CALCITE-711:
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Summary: Cardinality provider for use by lattice algorithm
Key: CALCITE-711
URL: https://issues.apache.org/jira/browse/CALCITE-711
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
Define a cardinality provider SPI for use by the lattice recommendation
algorithm. Also:
* Obsolete Lattice.CARDINALITY_MAP (by wrapping it in a mock provider).
* Create a JDBC cardinality provider, that gets cardinality by executing
"count(distinct ...)".
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