PS-4805: Re-implement compression dictionaries in 8.0

Question

1. Re-implement CREATE COMPRESSION_DICTIONARY, DROP COMPRESSION_DICTIONARY
2. Allow CREATE TABLE to use 'WITH COMPRESSION_DICTIONARY'
3. DDLs on tables with compression dictionary
4. Prevent dropping of COMPRESSION DICTIONARY with existing references
5. Allow compression_dictionary on tables with partitions
6. Fix mysqldump to show compression dictionary
7. New I_S views on compression dictionary tables
8. Fix tests to use new I_S views
9. Throw proper errors (ER_COMPRESSION_*)
10. Error handling in innodb_read_only mode
11. Handle upgrade from 5.7
12. Handle creation of dictionary tables in 8.0 at startup (mysql-8.0 -> PS8.0 )
13. Add upgrade test
14. Prevent direct access to mysql.compression_dictionary and mysql.compression_dictionary_cols table

该提问来源于开源项目：percona/percona-server

Answer 1

All pending tasks completed. Ready for review :)