This commit is contained in:
ana-uvarova 2020-11-16 12:08:10 +03:00
parent de5ed997ba
commit c6e7f7c0f4
2 changed files with 28 additions and 7 deletions

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@ -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)