提交 c6e7f7c0 编写于 作者: A ana-uvarova

++

上级 de5ed997
......@@ -123,7 +123,22 @@ ALTER TABLE visits MODIFY COLUMN browser Array(String)
```
## ALTER TABLE MODIFY COLUMN col_name REMOVE what_to_remove
Здесь будет описание для задачи 3122.
Removes something from the specific column.
Syntax:
```sql
Syntax of the statement.
```
## Other necessary sections of the description (Optional)
## See Also (Optional)
Links to related topics as a list.
- [link](#)
Changing the column type is the only complex action – it changes the contents of files with data. For large tables, this may take a long time.
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......@@ -13,7 +13,7 @@ ALTER TABLE table-name MODIFY TTL ttl-expression
# ALTER TABLE REMOVE TTL
Brief description of what the statement does.
Removes ttl-property from the table.
Syntax:
......@@ -21,14 +21,20 @@ Syntax:
Syntax of the statement.
```
## Other necessary sections of the description (Optional)
ALTER TABLE r_no_prop_table MODIFY COLUMN some_column REMOVE TTL;
Examples of descriptions with a complicated structure:
**Example**
- https://clickhouse.tech/docs/en/sql-reference/statements/grant/
- https://clickhouse.tech/docs/en/sql-reference/statements/revoke/
- https://clickhouse.tech/docs/en/sql-reference/statements/select/join/
Request
```sql
```
Result
```text
```
## See Also (Optional)
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