The scale and precision of column type is incorrect in mv

[EmmyMiao87]

Describe the bug
The scale and precision of column type is incorrect in mv.
For example, the base column is DECIMAL(9,3). When mv is created, the mv column is changed to DECIMAL(9,0) which is incorrect.

To Reproduce
Steps to reproduce the behavior:

1. create table

CREATE TABLE test_sys_materialized_view_2_test_create_dup_min_mv_tb_dup ( k0 BOOLEAN NOT NULL, k1 TINYINT NOT NULL, k2 SMALLINT NOT NULL, k3 INT NOT NULL, k4 BIGINT NOT NULL, k5 LARGEINT NOT NULL, k6 DECIMAL(9,3) NOT NULL, k7 CHAR(5) NOT NULL, k8 DATE NOT NULL, k9 DATETIME NOT NULL, k10 VARCHAR(20) NOT NULL, k11 DOUBLE NOT NULL, k12 FLOAT NOT NULL ) DISTRIBUTED BY HASH(k0) BUCKETS 10

2. create materialized view

CREATE MATERIALIZED VIEW min_mv AS select k0, min(k1), min(k2), min(k3), min(k4), min(k5), min(k6), min(k7), min(k8), min(k9), min(k10), min(k11), min(k12) from test_sys_materialized_view_2_test_create_dup_min_mv_tb_dup group by k0

3. desc table

+------------------------------------------------------------+---------------+-------+--------------+------+-------+---------+-------+---------+
| IndexName                                                  | IndexKeysType | Field | Type         | Null | Key   | Default | Extra | Visible |
+------------------------------------------------------------+---------------+-------+--------------+------+-------+---------+-------+---------+
| test_sys_materialized_view_2_test_create_dup_min_mv_tb_dup | DUP_KEYS      | k0    | BOOLEAN      | No   | true  | NULL    |       | true    |
|                                                            |               | k1    | TINYINT      | No   | true  | NULL    |       | true    |
|                                                            |               | k2    | SMALLINT     | No   | true  | NULL    |       | true    |
|                                                            |               | k3    | INT          | No   | false | NULL    | NONE  | true    |
|                                                            |               | k4    | BIGINT       | No   | false | NULL    | NONE  | true    |
|                                                            |               | k5    | LARGEINT     | No   | false | NULL    | NONE  | true    |
|                                                            |               | k6    | DECIMAL(9,3) | No   | false | NULL    | NONE  | true    |
|                                                            |               | k7    | CHAR(5)      | No   | false | NULL    | NONE  | true    |
|                                                            |               | k8    | DATE         | No   | false | NULL    | NONE  | true    |
|                                                            |               | k9    | DATETIME     | No   | false | NULL    | NONE  | true    |
|                                                            |               | k10   | VARCHAR(20)  | No   | false | NULL    | NONE  | true    |
|                                                            |               | k11   | DOUBLE       | No   | false | NULL    | NONE  | true    |
|                                                            |               | k12   | FLOAT        | No   | false | NULL    | NONE  | true    |
|                                                            |               |       |              |      |       |         |       |         |
| min_mv                                                     | AGG_KEYS      | k0    | BOOLEAN      | No   | true  | NULL    |       | true    |
|                                                            |               | k1    | TINYINT      | No   | false | NULL    | MIN   | true    |
|                                                            |               | k2    | SMALLINT     | No   | false | NULL    | MIN   | true    |
|                                                            |               | k3    | INT          | No   | false | NULL    | MIN   | true    |
|                                                            |               | k4    | BIGINT       | No   | false | NULL    | MIN   | true    |
|                                                            |               | k5    | LARGEINT     | No   | false | NULL    | MIN   | true    |
|                                                            |               | k6    | DECIMAL(9,0) | No   | false | NULL    | MIN   | true    |
|                                                            |               | k7    | CHAR(*)      | No   | false | NULL    | MIN   | true    |
|                                                            |               | k8    | DATE         | No   | false | NULL    | MIN   | true    |
|                                                            |               | k9    | DATETIME     | No   | false | NULL    | MIN   | true    |
|                                                            |               | k10   | VARCHAR(*)   | No   | false | NULL    | MIN   | true    |
|                                                            |               | k11   | DOUBLE       | No   | false | NULL    | MIN   | true    |
|                                                            |               | k12   | FLOAT        | No   | false | NULL    | MIN   | true    |
+------------------------------------------------------------+---------------+-------+--------------+------+-------+---------+-------+---------+

The scale and precision of decimal, char, varchar is incorrect.

Expected behavior
The scale and precision of mv column should be same as base column.