fix(数据集): 修复pg sql 数据集同步失败

core/backend/src/main/java/io/dataease/service/dataset/ExtractDataService.java

@@ -1022,6 +1022,7 @@ public class ExtractDataService {
             case pg:
                 PgConfiguration pgConfiguration = new Gson().fromJson(datasource.getConfiguration(), PgConfiguration.class);
                 dataMeta = new DatabaseMeta("db", "POSTGRESQL", "Native", pgConfiguration.getHost().trim(), pgConfiguration.getDataBase(), pgConfiguration.getPort().toString(), pgConfiguration.getUsername(), pgConfiguration.getPassword());
+                dataMeta.setPreferredSchemaName(pgConfiguration.getSchema());
                 transMeta.addDatabase(dataMeta);
                 inputSteps = inputStep(transMeta, selectSQL, pgConfiguration);
                 udjcStep = udjc(datasetTableFields, DatasourceTypes.pg, pgConfiguration, isSetKey);