* bantu/ticket/10327:
[ticket/10327] Use $this->tools instead of creating a new instance of db_tools.
[ticket/10327] Also change CREATE UNIQUE INDEX to use ALTER TABLE.
* CREATE INDEX is internally mapped to an ALTER INDEX statement.
* CREATE INDEX requires the INDEX permission.
* ALTER TABLE requires the (more powerful) ALTER permission.
* We require the ALTER permission anyway for operation.
* Changing CREATE INDEX to ALTER TABLE thus removes dependency on the INDEX
permission which is good because some management software does not give
out the INDEX permission by default.
http://dev.mysql.com/doc/refman/5.0/en/create-index.html
PHPBB3-10327
The test creates a table and runs a number of queries on it to judge whether
the selected column types can hold the data they are expected to contain.
Additional test methods check the auto increment feature and a few of the
basic commands of db_tools. This is only a starting point. Plenty more
tests need to be added.
PHPBB3-9892