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https://issues.apache.org/jira/browse/FLINK-25284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-25284:
-----------------------------------
Labels: pull-request-available stale-assigned (was: pull-request-available)
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> Support nulls in DataGen
> ------------------------
>
> Key: FLINK-25284
> URL: https://issues.apache.org/jira/browse/FLINK-25284
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Minor
> Labels: pull-request-available, stale-assigned
>
> Currently it is impossible to specify that some values should be null
> sometimes.
> It would be nice to have some property something like {{null-rate}} telling
> how often there should be {{null}} value generated
> something like that
> {code:sql}
> CREATE TABLE Orders (
> order_number STRING,
> price DECIMAL(32,2),
> buyer ROW<id INT, last_name STRING>,
> order_time TIMESTAMP(3),
> my_map MAP<INT,STRING>,
> my_arrray ARRAY<STRING>
> ) WITH (
> 'connector' = 'datagen',
> 'fields.order_number.null-rate' = '0.7',
> 'fields.price.null-rate' = '1.0',
> 'fields.order_time.null-rate' = '0.5',
> 'fields.buyer.id.null-rate' = '0.5',
> 'fields.buyer.null-rate' = '0.5',
> 'fields.my_map.key.null-rate' = '0.5',
> 'fields.my_map.null-rate' = '0.5',
> 'fields.my_array.element.null-rate' = '0.1',
> 'fields.my_array.null-rate' = '0.5'
> );
> {code}
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