AshinGau opened a new pull request, #10521:
URL: https://github.com/apache/doris/pull/10521
## What is changed
Get through the previous pull requests that support multi-catalog, and end
to end to achieve multi-catalog.
## Usage
### Add catalog
```
MySQL [tpch1]> create catalog hive properties('type' = 'hms',
'hive.metastore.uris' = 'thrift://172.21.16.34:7004');
MySQL [tpch1]> show catalogs;
+------------------+----------+
| CatalogName | Type |
+------------------+----------+
| hive | hms |
| internal_catalog | internal |
+------------------+----------+
```
### Switch catalog & Describe hive table
```
MySQL [tpch1]> switch hive;
Query OK, 0 rows affected (0.00 sec)
MySQL [tpch1]> show databases;
+---------------+
| Database |
+---------------+
| cmy |
| db |
| default |
| tpch1 |
| tpch100 |
| tpch1_parquet |
+---------------+
MySQL [tpch1]> use tpch1_parquet;
Database changed
MySQL [tpch1_parquet]> show tables;
+-------------------------+
| Tables_in_tpch1_parquet |
+-------------------------+
| customer |
| lineitem |
| nation |
| orders |
| part |
| partsupp |
| region |
| supplier |
+-------------------------+
MySQL [tpch1_parquet]> describe nation;
+-------------+---------+---------+
| Field | Type | Comment |
+-------------+---------+---------+
| n_nationkey | int(11) | NULL |
| n_name | text | NULL |
| n_regionkey | int(11) | NULL |
| n_comment | text | NULL |
+-------------+---------+---------+
```
### Query
```
MySQL [tpch1_parquet]> select count(*) from nation;
+----------+
| count(*) |
+----------+
| 25 |
+----------+
```
## Checklist(Required)
1. Does it affect the original behavior: (No)
2. Has unit tests been added: (No)
3. Has document been added or modified: (No)
4. Does it need to update dependencies: (No)
5. Are there any changes that cannot be rolled back: (No)
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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