Yu Xu created CALCITE-6926:
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             Summary: ClickHouse float should not transform to Double
                 Key: CALCITE-6926
                 URL: https://issues.apache.org/jira/browse/CALCITE-6926
             Project: Calcite
          Issue Type: Improvement
          Components: core
    Affects Versions: 1.39.0
            Reporter: Yu Xu
            Assignee: Yu Xu
             Fix For: 1.40.0


In ClickHouse float should to be Float32, double to be Float64, this can refer 
to document:

[https://clickhouse.com/docs/sql-reference/data-types/float]

 

The equivalent types in ClickHouse and in C are given below:
 * {{Float32}} — {{{}float{}}}.
 * {{Float64}} — {{{}double{}}}.



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