[Improvement] Optimize load database method in JdbcDatabaseOperations

[yuqi1129]

What would you like to be improved?

load method in JdbcDatabaseOperations will load all databases. if there are a lot of databases, it takes a lot of time.

  @Override
  public JdbcSchema load(String databaseName) throws NoSuchSchemaException {
    // We need to load the database as needed NOT load them all. 
    List<String> allDatabases = listDatabases();
    String dbName =
        allDatabases.stream()
            .filter(db -> db.equals(databaseName))
            .findFirst()
            .orElseThrow(
                () -> new NoSuchSchemaException("Database %s could not be found", databaseName));

    return JdbcSchema.builder()
        .withName(dbName)
        .withProperties(ImmutableMap.of())
        .withAuditInfo(AuditInfo.EMPTY)
        .build();
  }

How should we improve?

No response

[sunxiaojian]

@yuqi1129 please assign it to me.