Merge empty Flow files based on attribute in nifi

[#1]

I have a case where i have empty flow files which need to merged based on table name attribute and create single flow file for each table. Correlation attribute name is ignoring the table name and is merging all flow file to one. How can i solve this?

[#2]

Can you please send the screenshot of the configuration done in correlation attribute name?

[#3]

Hi @Vj1989 ,

I've used ${generatetablefetch.tableName} as expression. What did i do wrong?