# shrink_vci

The function `shrink_vci(vc text, vci text)` provides shrink the target vci.


# Function返回值说明

| column       | type    | references | description                     |
| :----------- | :------ | :--------- | :------------------------------ |
| `shrink_vci` | bool    |            | shrink vci successfully or not  |


# Function入参值说明

| args        | type    | description          |
| :---------- | :------ | :------------------- |
| `vc`        | text    | the target vc name   |
| `vci`       | text    | the target vci name  |

# Function举例说明
```
db=# select oushu_toolkit.shrink_vci('vc_default','vci1');
 shrink_vci 
------------
 t
(1 row)
```