* delete ShardingDropIndexOptimizedStatement

* avoid using ShardingConditionOptimizedStatement

* remove ShardingConditionOptimizedStatement

* decouple GeneratedKey and columnNames

* refactor InsertClauseShardingConditionEngine

* refactor InsertClauseShardingConditionEngine's constructor

* move GeneratedKey from optimize module to route module

* rename package name org.apache.shardingsphere.core.optimize.sharding.segment.select to org.apache.shardingsphere.core.optimize.sharding.segment

* merge ShardingInsertOptimizedStatement and EncryptInsertOptimizedStatement to InsertOptimizedStatement

* rename OptimizedStatement.getSQLStatement() to getSqlStatement

* remove ShardingOptimizeEngine & EncryptOptimizeEngine

* move constant of derived values from optimize module to rewrite module

* Update StandardRoutingEngineTest.java

* Update ComplexRoutingEngineTest.java

* Merge branch 'dev' of https://github.com/apache/incubator-shardingsphere into issue3061

# Conflicts:
#	sharding-core/sharding-core-route/src/test/java/org/apache/shardingsphere/core/route/type/complex/ComplexRoutingEngineTest.java
#	sharding-core/sharding-core-route/src/test/java/org/apache/shardingsphere/core/route/type/standard/StandardRoutingEngineTest.java

* Fix spring-boot-plugin version missing bug.

* Support jdk1.7 to change frontend-maven-plugin version

* For #3032, add missing dcl test cases for select with functions grammars.

* For #3032, add missing dcl test cases for select with functions grammars 2nd.

* For #3047, Refactor TableBroadcastRoutingEngineTest

* For #3047, Add some unit test for exception

* For checkstyle

* For #3047, Add unit test log SQL shard with parameters

* For #3047, Add unit test for SPIRoutingHook

* For #3047, Add unit test for RoutingUnit

* For #3047, Add unit test for RoutingResult

* For #3047, Add unit test for BatchRouteUnit

* For #3047, Add unit test for MasterInstanceBroadcastRoutingEngine

* For #3047, Add unit test for MasterSlaveRouter

* For #3047, Add unit test for ShardingMasterSlaveRouter

* For #3047, Add equals and toString unit test for BatchRouteUnit, RouteUnit and SQLUnit

* For #3047, Refactor StandardRoutingEngineTest

* For #3047, Refactor ComplexRoutingEngineTest

* For #3047, Refactor AbstractSQLRouteTest and for checkstyle

* For #3047, Add assertToString for RoutingUnit and TableUnit

* For #3047, Add unit test for RoutingEngineFactory

* For #3047, Add unit test for insert

* For #3047, Conflict resolution

* For #3047, Add unit test for InlineShardingStrategy

* remove RoutingResultValidator

* rename org.apache.shardingsphere.core.route.router.sharding.validator.statement to org.apache.shardingsphere.core.route.router.sharding.validator

* update javadoc

* add judge to whether routed data sources belong to configured data sources

* remove ShardingRouter

* rename ParsingSQLRouter to ShardingRouter

* move ShardingConditions from optimize module to route module

* move ShardingConditions from optimize module to route module

* add ShardingRouter.getShardingConditions()

* revise error message for ShardingDropIndexOptimizeEngine

* change signature of RoutingEngineFactory.newInstance()

* move drop index's logic from optimize to route module

* remove ShardingDropIndexOptimizeEngine

* add ShardingValidator

* refactor ShardingUpdateValidatorTest

* add ShardingInsertValidatorTest

* remove UpdateStatement & DeleteStatement

* For #3032, add missing dcl test cases for alter relative grammars.

* For #3032, add missing dcl test cases for alter relative grammars 2nd.

* add hint for sharding-proxy

* change editor setting and reformat

* change editor setting and reformat

* refactor hint command executor in sharding-proxy

* add NoArgsConstructor Annotation

* format indents for empty lines

* refactor hint command for sharding-proxy

* feat:add basic unit tests

* feat:add Footer Logo unit tests

* feat[sharding-ui-frontend]:add Container Component unit test

* feat[sharding-ui-frontend]:add Footer Logo unit test

* feat[sharding-ui-frontend]:add Head Componet unit test

* feat[sharding-ui-frontend]:add Menu Componet unit test

* feat[sharding-ui-frontend]:add login index views unit test

* feat[sharding-ui-frontend]:add config-manage orchestration views unit test

* feat[sharding-ui-frontend]:
1. Extending eslint rules
2. Delete easymock-related configuration
3. Modify node version requirements in package.json
4. Update Readme

* feat[sharding-ui-frontend]:update pom.xml node version

modify startWithRegistryCenter()

* 1. add checker in ParsingSQLRouter for check RoutingResult.
2. add ParsingSQLRoutingResultChecker to check RoutingResult with ShardingRule.RoutingUnits.
3. add, modify some UTs.

* add RoutingResultChecker

* 1. modify the method call order in ParsingSQLRoutingResultChecker.
2. add UT.

* optimizing code style.

* fix #2432

* revise #3025