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https://issues.apache.org/jira/browse/FLINK-25149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17453015#comment-17453015
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waittting commented on FLINK-25149:
-----------------------------------

Thank you for your reply, but in my code the constructor method of 
CCDynamicSourceFunction is called every time when the getScanRuntimeProvider be 
called, is this the correct phenomenon?

> getScanRuntimeProvider method called before the pushDown method,
> ----------------------------------------------------------------
>
>                 Key: FLINK-25149
>                 URL: https://issues.apache.org/jira/browse/FLINK-25149
>             Project: Flink
>          Issue Type: Bug
>            Reporter: waittting
>            Priority: Major
>
> ```
> public class CCDynamicTableSource implements ScanTableSource, 
> SupportsLimitPushDown, SupportsFilterPushDown, SupportsProjectionPushDown {}
> ```
> Why is the getScanRuntimeProvider method called before the pushDown method, 
> so that the parameters I get in the pushDown are not available in the 
> getScanRuntimeProvider?



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