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https://issues.apache.org/jira/browse/FLINK-39077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Nuyanzin resolved FLINK-39077.
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Fix Version/s: 2.3.0
Resolution: Fixed
> Calculation of table changes for MT with several non persisted columns might
> fail
> ---------------------------------------------------------------------------------
>
> Key: FLINK-39077
> URL: https://issues.apache.org/jira/browse/FLINK-39077
> Project: Flink
> Issue Type: Sub-task
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.3.0
>
>
> For instance if there is initial MT as
> {code:sql}
> CREATE MATERIALIZED TABLE mt (id INT, metadata1 METADATA INT VIRTUAL,
> metadata2 METADATA INT VIRTUAL) AS SELECT 1 id;
> {code}
> and then
> {code:sql}
> ALTER MATERIALIZED TABLE mt AS SELECT 1 AS id, 'name' AS name;
> {code}
> Update: finally it was decided to not support changing of query for such
> cases because it is not clear what is is intention of users regarding non
> persisted column position in such case
> Instead users can use either CREATE OR ALTER
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