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https://issues.apache.org/jira/browse/CALCITE-6926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17939463#comment-17939463
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Caican Cai edited comment on CALCITE-6926 at 3/30/25 6:40 AM:
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[~xuzifu666] Your jira summary should be： ClickHouse Float type should not be
converted to Double type
was (Author: JIRAUSER302115):
[~xuzifu666] Your jira summary should be： ClickHouse Float type should not
transform to Double type
> ClickHouse float should not transform to Double type
> ----------------------------------------------------
>
> 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
> Priority: Major
> Labels: pull-request-available
> 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{}}}.
>
> Float types in ClickHouse have the following aliases:
> * {{Float32}} — {{{}FLOAT{}}}, {{{}REAL{}}}, {{{}SINGLE{}}}.
> * {{Float64}} — {{{}DOUBLE{}}}, {{{}DOUBLE PRECISION{}}}.
>
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