我在bq中有此myTable
表:
[
{"name": "executionId", "type": "STRING"},
{"name":"metadata", "type":"record","fields":[
{"name":"fileName", "type":"STRING"},
{"name":"fileType", "type":"STRING"},
{"name":"errors", "type":"STRING"}
]}
]
现在,我正在尝试在我的代码中获取表格模式。这是我尝试使用此示例的方法:
import com.google.cloud.examples.bigquery.snippets.*;
public class MyClass {
public static void main(String[] args) throws Exception {
BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
BigQuerySnippets bigQuerySnippets = new BigQuerySnippets(bigquery);
Table table = bigQuerySnippets.getTable("MY_DATASET", "myTable");
现在我如何继续?table
是否有一种方法?
表扩展了tableInfo,因此您可以从TableInfo中获取表格定义,以及来自TableDefinition的架构:
Schema schema = table.getDefinition().getSchema();