add benchmark test
0.2.20
refactor
refactor
slf4j顺序问题
Merge pull request #342 from cutedemons/master

mofify object equals
0.2.20-SNAPSHOT
improve SchemaStatVisitor
merge from upstram
remove unused code
Merge pull request #344 from wenshao/master

improve schemaStat
bug fixed for PreparedStatementImpl
Merge pull request #345 from wenshao/master

bug fixed for PreparedStatementImpl
improve wrap support
Merge pull request #346 from wenshao/master

improve wrap support
fixed testcase
improve dynamic config
improve dynamic config
improve WallFilter
sql parser support alter table drop constraint