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https://issues.apache.org/jira/browse/FLINK-37649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weijie Guo resolved FLINK-37649.
--------------------------------
Fix Version/s: 2.1.0
Resolution: Fixed
master(2.1) via 03bea48ad3beb1edb89b677e1fb69a1c5d8610c3.
> Datagen connector cannot set length for collection type
> -------------------------------------------------------
>
> Key: FLINK-37649
> URL: https://issues.apache.org/jira/browse/FLINK-37649
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Common
> Affects Versions: 2.0.0
> Reporter: Weijie Guo
> Assignee: Weijie Guo
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.1.0
>
>
> I use the following DDL to generate collection type data:
> {code:java}
> CREATE TABLE Orders (
> f0 Array<INT>,
> f1 Map<INT, STRING>,
> f2 MULTISET<INT>
> ) WITH (
> 'connector' = 'datagen',
> 'fields.f0.length' = '10',
> 'fields.f1.length' = '10',
> 'fields.f2.length' = '10'
> );
> {code}
> But got:
> {code:java}
> Unsupported options:
> fields.f0.length
> fields.f1.length
> fields.f2.length
> {code}
> This should be valid options per our documentation:
> ```
> Size or length of the collection for generating
> varchar/varbinary/string/bytes/array/map/multiset types. Please notice that
> for variable-length fields (varchar/varbinary), the default length is defined
> by the schema and cannot be set to a length greater than it. for super-long
> fields (string/bytes), the default length is 100 and can be set to a length
> less than 2^31. for constructed fields (array/map/multiset), the default
> number of elements is 3 and can be customized.
> ```
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