* 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