add log api
Merge remote-tracking branch 'upstream/master'
bug for StatFilter merge sql
减少PreparedStatementProxyImpl的内存占用
减少内存占用
Merge pull request #358 from cutedemons/master

add parent
decrease memory used
Merge remote-tracking branch 'upstream/master'
Merge pull request #359 from cutedemons/master

modify deny variant, function, schema ,table
Merge pull request #362 from cutedemons/master

	 add list judge
Merge remote-tracking branch 'upstream/master'
improve wall && eval support
add testcase
refactor
decrease memory copy
decrease memory copy
decrement JdbcParameter memory used
merge
decrease JdbcParameter memory used
decrease JdbcParameter memory used