Not possible to use different column name in multiple indexers for subscription

[nikunjkotecha]

Preconditions (*)

1. Magento 2.1.4 EE (and looking at the code I can see the same in 2.2.4 CE + 2.3.x dev CE)
2. Magento catalogsearch_fulltext indexer set to update by schedule

Steps to reproduce (*)

1. Create custom indexer and mview on cataloginventory_stock_item with entity_column="item_id" instead of product_id used in catalogsearch_fulltext and set it to update by schedule

<view id="custom_stock_indexer" class="Acquia\CommerceManager\Model\Indexer\Stock" group="indexer">
        <subscriptions>
            <table name="cataloginventory_stock_item" entity_column="item_id" />
        </subscriptions>
    </view>

Expected result (*)

1. Trigger should use item_id for custom indexer and product_id for catalogsearch_fulltext

Actual result (*)

1. Trigger uses column name from the indexer last set to "update by schedule" (as per the steps to reproduce above it uses item_id for both)

[magento-engcom-team]

Hi @nikunjkotecha. Thank you for your report.
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@nikunjkotecha do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

[nikunjkotecha]

Yes this is reproducible in Vanilla Magento, I'll try and provide a hacky patch soon.

[nikunjkotecha]

I've created PR for possible direction towards the fix, I don't expect it to be the final fix as it should be done in more generic and global way IMO but since it is blocker in my project I'm going with a the solution I suggested with known risks (if some indexer uses it's custom Subscription class, my fixes won't be applied to it)

[magento-engcom-team]

Hi @engcom-backlog-nazar. Thank you for working on this issue.
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[nikunjkotecha]

@magento-engcom-team this requires custom code to be added to be able to reproduce the issue, not sure if you will allow me to add custom code in the instance you give to me

[nikunjkotecha]

@magento-engcom-team @engcom-backlog-nazar can someone help me understand next steps here?