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+#### DDL Supported (MySQL):
+With Datatype conversion(From MySQL to ClickHouse)
+
+ALTER TABLE
+
+| MySQL                                                  | ClickHouse                                                      |
+|--------------------------------------------------------|-----------------------------------------------------------------|
+| ADD COLUMN                                             |                                                                 |
+| ADD COLUMN NULL/NOT NULL                               |                                                                 |
+| ADD COLUMN DEFAULT                                     |                                                                 |
+| ADD COLUMN FIRST, AFTER                                |                                                                 |
+| DROP COLUMN                                            |                                                                 |
+| MODIFY COLUMN data_type                                |                                                                 |
+| MODIFY COLUMN data_type NULL/NOT NULL                  |                                                                 |
+| MODIFY COLUMN data_type DEFAULT                        |                                                                 |
+| MODIFY COLUMN FIRST, AFTER                             |                                                                 |
+| MODIFY COLUMN old_name new_name datatype NULL/NOT NULL |                                                                 |
+| RENAME COLUMN col1 to col2                             |                                                                 |
+| CHANGE COLUMN FIRST, AFTER                             | MODIFY COLUMN                                                   |
+| ALTER COLUMN col_name ADD DEFAULT                      | Not supported by grammar                                        |
+| ALTER COLUMN col_name ADD DROP DEFAULT                 | Not supported by grammar                                        |
+| ADD PRIMARY KEY                                        | Cannot modify primary key in CH                                 |
+
+
+## TABLE operations
+| MySQL                                    | ClickHouse                          |
+|------------------------------------------|-------------------------------------|
+| RENAME TABLE name_1 to name_2            |                                     |
+| TRUNCATE TABLE                           |                                     |
+| DROP TABLE name_1                        |                                     |
+| DROP TABLE name_1, name_2                |                                     |
+| ALTER TABLE table_name to new_table_name | RENAME table_name to new_table_name |
+| CREATE TABLE PARTITION BY KEY(col1)      | PARTITION BY col1                   |
+| CREATE TABLE PARTITION BY RANGE(col1,col2, col3) | PARTITION BY col1, col2, col3|
+
+
+
+## DATABASE operations
+| MySQL           | ClickHouse |
+|-----------------|------------|
+| CREATE DATABASE |            |
+| USE DATABASE    |            |
+
+
+###  Not supported:
+
+| MySQL                                                  | ClickHouse                                                      |
+|--------------------------------------------------------|-----------------------------------------------------------------|
+| ADD INDEX                                              | Secondary indexes in CH, what about type and index granularity? |
+| ADD CONSTRAINT  (CHECK)                                |                                                                 |
+| ADD CONSTRAINT                                         | Add constraint with Primary key(Not supported)                  |
+| DROP CONSTRAINT                                        | Add constraint with Primary key(Not supported)                  |