Displaying plan files on Netezza V7.0

Netezza used to store query execution plans as ascii files in the /nz file system.  Active plans would be kept in /nz/data/plans and completed plans kept in /nz/kit/log/planshist/current/.  The problem with this was that anytime you wanted a plan file you would have to log onto the system to collect it.

 

Now, there is a SQL interface to capture the actual execution plan.  Beginning v7.0, you can type following from your SQL client (where 78752 is the plan #):

 

show planfiles 78752;

 

This will dump the plan file to your screen.  If using nzsql, prefix this with:

 

\o /tmp/78752.pln

 

Or re-direct it to a file.  If using Aginity or another ODBC/JDBC/OLEDB SQL client, copy and paste the output to a file for further analysis.

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