Hi All

 

As I understand,  we can trigger generation of the Parquet Metadata Cache File 
by using REFRESH TABLE METADATA <path to table>.

It seems we need to run this command on a directory, nested or flat, once 
during the session. 

 

Why we need to run for every session? That implies if I use REST API to fire 
query, I have to generate meta-data cache file as part of every REST API call.

This seems to be issue as I have seen that generation of meta-data cache file 
takes some significant time.

 

Can't we define/configure  cache expiry time so that we can keep meta-data in 
cache for longer duration?

 

Any inputs on this will be helpful.

 

Regards

Chetan

 

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