RaigorJiang opened a new pull request, #29759:
URL: https://github.com/apache/shardingsphere/pull/29759
Fixes #29757.
### Before
```sql
mysql> show databases;
+--------------------+
| schema_name |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| shardingsphere |
| sys |
+--------------------+
```
### After
```sql
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| shardingsphere |
| sys |
+--------------------+
```
### Why name is `SCHEMA_NAME` and label is `Database`?
This is come from the result set meta data of native MySQL
```java
// show databases from mysql
com.mysql.jdbc.ResultSetMetaData@197d671 - Field level information:
com.mysql.jdbc.Field@402e37bc[catalog=information_schema,tableName=SCHEMATA,originalTableName=SCHEMATA,columnName=Database,originalColumnName=SCHEMA_NAME,mysqlType=253(FIELD_TYPE_VAR_STRING),flags=,
charsetIndex=33, charsetName=UTF-8]
// show database from proxy (before)
com.mysql.jdbc.ResultSetMetaData@197d671 - Field level information:
com.mysql.jdbc.Field@402e37bc[catalog="",tableName=SCHEMATA,originalTableName=SCHEMATA,columnName=schema_name,originalColumnName=Database,mysqlType=253(FIELD_TYPE_VAR_STRING),flags=
UNSIGNED, charsetIndex=33, charsetName=UTF-8]
// show database from proxy (after)
com.mysql.jdbc.ResultSetMetaData@197d671 - Field level information:
com.mysql.jdbc.Field@402e37bc[catalog=,tableName=SCHEMATA,originalTableName=SCHEMATA,columnName=Database,originalColumnName=SCHEMA_NAME,mysqlType=253(FIELD_TYPE_VAR_STRING),flags=
UNSIGNED, charsetIndex=33, charsetName=UTF-8]
```
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