Connection acquire(string poolName, [ boolean autoCommit, boolean readOnly ])

Acquires connection explicitly. 'poolName' has same rules as in query function.

Parameters	`poolName -` Name of connection pool, may contain database catalog `autoCommit -` auto commit `readOnly -` read only
Returns	Acquired connection
Throws	`AcquireError -` If connection could not be retrieved `SQLError -` If SQL error occured