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https://issues.apache.org/jira/browse/FLINK-36970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leonard Xu updated FLINK-36970:
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Affects Version/s: cdc-3.2.1
> Merge result of data type BIGINT and DOUBLE should be DOUBLE instead of STRING
> ------------------------------------------------------------------------------
>
> Key: FLINK-36970
> URL: https://issues.apache.org/jira/browse/FLINK-36970
> Project: Flink
> Issue Type: Improvement
> Components: Flink CDC
> Affects Versions: cdc-3.2.1
> Reporter: Xiao Huang
> Assignee: Xiao Huang
> Priority: Major
> Labels: pull-request-available
>
> In SchemaMergingUtils#getLeastCommonType, the merge result of BIGINT and
> DOUBLE is STRING now.
> However, considering JSON string, JSON number can be integers or floating
> point. Data type of integers can be inferred as BIGINT, and floating point
> can be inferred as DOUBLE. So a JSON number field will be inferred as STRING,
> which is confusing.
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