Logs table partitioned

[angoca]

The table where the logs are written, could be partitioned. In this way, remove old logs is only by detaching a partition.

This could help to keep the size of the logs table, reduce the logging by not using delete.

Also, this could create another process, like export a file and then compress it.

[angoca]

Also, when inserting, it should validate the not range error, and create the partition.

[angoca]

The installer includes an option to create the LOGS table with a partition option. It was created at:

• https://github.com/angoca/log4db2/commit/39a9d9112643718ac132db9d80dbe545456b217e
• https://github.com/angoca/log4db2/commit/6713463145d4cf4339bdc9f08e122351038ede30
• https://github.com/angoca/log4db2/commit/e85be0142fda50ccb08a7697eebfeac1242718b9

However, adding a new partition, it cannot be done within log4db2, because it generates a deadlock when logging in autonomous transactions.