[DB Schema] Cannot change column type in some cases

Nuranto commented 3 months ago

Summary

Changing a column type when old type uses length, and new one doesn't is currently impossible.

Examples

This :

<?xml version="1.0"?>
<schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Setup/Declaration/Schema/etc/schema.xsd">

    <table name="eav_attribute">
        <column xsi:type="text" name="note" nullable="true" comment="Note"/>
    </table>

</schema>

will give Element 'column', attribute 'length': The attribute 'length' is not allowed. error

Proposed solution

This error has already been reported here : https://github.com/magento/magento2/issues/26155 But the fix was to change the original type, instead of fixing the issue. However, I won't complain of such solution for my case :)

Release note

No response

Triage and priority

[ ] Severity: S0 - Affects critical data or functionality and leaves users without workaround.
[ ] Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
[X] Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
[ ] Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
[ ] Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

m2-assistant[bot] commented 3 months ago

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engcom-November commented 3 months ago

Hello @Nuranto,

Thank you for the report and collaboration!

Verified this on 2.4-develop. When trying to generate whitelist for the given db_schema throwed the below error:

Element 'column', attribute 'length': The attribute 'length' is not allowed.

Hence confirming this issue.

github-jira-sync-bot commented 3 months ago

:white_check_mark: Jira issue https://jira.corp.adobe.com/browse/AC-12169 is successfully created for this GitHub issue.

m2-assistant[bot] commented 3 months ago

:white_check_mark: Confirmed by @engcom-November. Thank you for verifying the issue.
Issue Available: @engcom-November, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.

raghuiamsingh commented 3 weeks ago

when can we expect a fix for this?

magento / magento2