Remove redundant collection BeforeAssemble call from query cache #2431

Job	Run time
SqlServer2008	11m 43s
SqlServer2008-MicrosoftDataSqlClientDriver	15m 5s
PostgreSQL	8m 11s
Firebird	19m 4s
Firebird4	13m 32s
MySQL	9m 19s
Oracle	18m 20s
SQLite	7m 3s
	1h 42m 17s

Provide feedback