* ref issue#6497

* delete useless import

* fix

* fix rewrite for derived orderBy projection
* change package of TableExtractor

* fix subquery sharding key check result

* fix checkstyle and test case

* fix rewrite for subquery

* fix

* check function name

* fix

* rename func name

* fix sql support doc

* add sharding rewrite test case and fix sql support doc

* fix

* fix

* fix

* fix

* fix for rewrite of subquery

* add some test case

* fix #5486

* fix

* simple code

* format code

* rename sharding-core to shardingsphere-sharding

* rename sharding-core to shardingsphere-sharding

* rename encrypt-core to shardingsphere-encrypt

* rename master-slave-core to shardingsphere-master-slave

* rename shadow-core to shardingsphere-shadow

* Add shardingsphere-features module

* Add visitor with table factor

* Comment subquery test cases for rewrite

* fix sql case

* Change to the correct SQL

* Change to the correct SQL

* for code style

* add select_with_table_as_qualified_name for sharding

* only modify projection's column name, do not modify owner of encrypt

* only modify predicate's column name, do not modify owner of encrypt

* remove EncryptCondition.columnOwner

* split Encrypt Predicate token to EncryptPredicateColumnToken and EncryptPredicateRightValueToken

* rename EncryptProjectionToken to EncryptColumnNameToken

* refactor EncryptPredicateColumnTokenGenerator

* recovery passed test cases

* remove useless sharding-rule.yaml

* make consist with sharding table structure for rewrite test cases

* add test cases for insert without columns for encrypt

* add test cases for insert without columns for sharding + encrypt

* add in predicate for encrypt test case

* add in predicate for encrypt with plain test case

* remove useless test cases

* remove useless rule config

* remove useless test cases

* fix show_columns_from_table

* finish show.xml

* add drop_index_without_table

* add drop_index_for_mysql

* fix drop_index_for_postgresql

* add test cases for regular insert

* add FIXME for insert_values_without_columns_without_id_for_literals

* finish insert values test cases

* finish insert set test cases

* Merge branch 'dev' into issue1548

# Conflicts:
#	sharding-core/sharding-core-rewrite/src/test/resources/encrypt/select_for_query_with_cipher.xml

* add ON DUPLICATE KEY UPDATE

* add delete test cases

* add update test cases

* add basic select test cases

* add binding select test cases

* update binding select test cases

* add avg select test cases

* add order by and group by select test cases

* add pagination basic test cases

* add all pagination test cases

* add distinct test cases