Reindex Container in dbxml shell.

Question

Hello,
I am in the process of upgrading from 2.3.10 to 2.4.13. In the release notes, I read the following:
"Most queries will benefit from reindexing 2.3.X-based containers to add new structural statistics information used in query cost analysis. Reindexing is required in order to enable the substring index to be used on 1- and 2-character strings (a new feature in 2.4)."
OK, so I would like to have these statistics info added. According one of the other documents, I need the following parameters:
name
The path to the container to be reindexed.
context
The update context to use for the reindex operation.
flags
Use DBXML_INDEX_NODES to change the container's index type to node indexes, and use DBXML_NO_INDEX_NODES to change the index type to document indexes. Use DBXML_STATISTICS to add a structural statistics database to the container during reindexing, and DBXML_NO_STATISTICS to remove an existing structural statistics database.
The name of my container is system, but what should I use for context when I use it in the dbxml shell?
dbxml> reindexContainer system ????? DBXML_STATISTICS
What goes on the place of the ????.
As a general note, it would be helpful to add examples of commands to execute when upgrading from one version to the next.
Thanks in advance for your help.
Regards,
Bas.

Answer 1

Bas
The syntax used by the dbxml shell is different from that of the C++ API. The syntax for the shell for reindexContainer is:
dbxml> reindexContainer <containerName> <d|n>
To get the syntax and description of any command just use the following in the shell:
dbxml> help <command>
Although, it appears that the shell cannot be used to add the statistics database to your container. To do that you will have to write a small program that uses the C++ API.
Lauren