"index contains unexpected zero page" problem

[Yi Sun <yinan81@xxxxxxxxx>]

Hi guys,

We face "index contains unexpected zero page" problem in prd postgresql 11 environment

This url shows that need to backup database firstly, is it necessary?

https://cloudblue.freshdesk.com/support/solutions/articles/44001889599-error-index-tablename-contains-unexpected-zero-page

If "create index concurrently" create a new index and drop the old broken index is a solution to avoid table lock please? Thanks

Best Regards

Dennis