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Re: taking long time to ALTER the table
Posted by: Ra Nala
Date: April 15, 2016 12:00AM

we are maintaining this table structure for Warehouse(OLAP : De-normalization) not for OLTP(normalization).

actually whatever i posted my table is not actual table, modified the names as you said like dy_, rb_ or c_ etc because of security reasons.

and ps_key vs ps_id
in this ps_id as OLTP id ps_key as Surrogate key which is generating MySQL, purely Wareehouse concept and that is following Inmon approach.

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Re: taking long time to ALTER the table
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