Support table comment and column comment for view (#1799)

docs/documentation/en/sql-reference/sql-statements/Administration/SHOW FULL COLUMNS_EN.md

@@ -0,0 +1,16 @@
+# SHOW FULL COLUMNS
+## description
+    This statement is used to view some information about columns of a table.
+
+    Syntax：
+        SHOW FULL COLUMNS FROM tbl;
+        
+## example
+
+    1. View the column information of specified table
+
+        SHOW FULL COLUMNS FROM tbl;
+        
+## keyword
+    
+    SHOW,FULL,COLUMNS    

docs/documentation/en/sql-reference/sql-statements/Administration/SHOW TABLE STATUS_EN.md

@@ -0,0 +1,29 @@
+# SHOW TABLE STATUS
+
+## description
+
+This statement is used to view some information about Table.
+
+    Syntax:
+
+    SHOW TABLE STATUS
+    [FROM db] [LIKE "pattern"]
+
+    Explain:
+
+    1. This statement is mainly used to be compatible with MySQL grammar. At present, only a small amount of information such as Comment is displayed.
+
+## Example
+
+    1. View the information of all tables under the current database
+    
+        SHOW TABLE STATUS;
+    
+    
+    2. View the information of the table whose name contains example in the specified database
+    
+        SHOW TABLE STATUS FROM DB LIKE "% example%";
+
+## Keyword
+
+    SHOW,TABLE,STATUS

docs/documentation/en/sql-reference/sql-statements/Data Definition/CREATE TABLE_EN.md

@@ -3,14 +3,15 @@
 
 ### Syntax
 
-CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [database.]table_name
-(column_definition1[, column_definition2, ...])
-[ENGINE = [olap|mysql|broker]]
-[key_desc]
-[partition_desc]
-[distribution_desc]
-[PROPERTIES ("key"="value", ...)];
-[BROKER PROPERTIES ("key"="value", ...)];
+    CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [database.]table_name
+    (column_definition1[, column_definition2, ...])
+    [ENGINE = [olap|mysql|broker]]
+    [key_desc]
+    [COMMENT "table comment"]
+    [partition_desc]
+    [distribution_desc]
+    [PROPERTIES ("key"="value", ...)]
+    [BROKER PROPERTIES ("key"="value", ...)];
         
 1. column_definition
 
@@ -222,6 +223,7 @@ CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [database.]table_name
         )
         ENGINE=olap
         AGGREGATE KEY(k1, k2)
+        COMMENT "my first doris table"
         DISTRIBUTED BY HASH(k1) BUCKETS 32
         PROPERTIES ("storage_type"="column");
         ```

docs/documentation/en/sql-reference/sql-statements/Data Definition/CREATE VIEW_EN.md

@@ -1,22 +1,42 @@
 # CREATE VIEW
 ## Description
-This statement is used to create a logical view
-Grammar:
-CREATE VIEW [IF NOT EXISTS]
-[db_name.]view_name (column1[, column2, ...])
-AS query
+    This statement is used to create a logical view
+    Grammar:
+    
+        CREATE VIEW [IF NOT EXISTS]
+        [db_name.]view_name
+        (column1[ COMMENT "col comment"][, column2, ...])
+        AS query_stmt
 
-Explain:
-1. Views are logical views without physical storage. All queries on views are equivalent to sub-queries corresponding to views.
-2. Query_stmt is arbitrarily supported SQL
+    Explain:
+
+        1. Views are logical views without physical storage. All queries on views are equivalent to sub-queries corresponding to views.
+        2. query_stmt is arbitrarily supported SQL.
 
 ## example
-1. Create view example_view on example_db
-CREATE VIEW example_db.example_view (k1, k2, k3, v1)
-AS
-SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
-WHERE k1 = 20160112 GROUP BY k1,k2,k3;
+
+    1. Create view example_view on example_db
+
+        CREATE VIEW example_db.example_view (k1, k2, k3, v1)
+        AS
+        SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
+        WHERE k1 = 20160112 GROUP BY k1,k2,k3;
+        
+    2. Create view with comment
+    
+        CREATE VIEW example_db.example_view
+        (
+            k1 COMMENT "first key",
+            k2 COMMENT "second key",
+            k3 COMMENT "third key",
+            v1 COMMENT "first value"
+        )
+        COMMENT "my first view"
+        AS
+        SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
+        WHERE k1 = 20160112 GROUP BY k1,k2,k3;
 
 ## keyword
-CREATE,VIEW
+
+    CREATE,VIEW