修改一些展示问题

zyplayer-doc-ui/db-ui/src/views/data/DataPreview.vue

@@ -118,6 +118,7 @@
             },
             handlePageSizeChange(to) {
                 this.pageSize = to;
+				this.currentPage = 1;
                 this.doExecutorSqlCommon();
             },
             tableSortChange(sort) {

zyplayer-doc-ui/db-ui/src/views/data/Executor.vue

@@ -320,6 +320,9 @@
 					}
 				}
 				this.datasourceOptions = datasourceOptions;
+				if (datasourceOptions.length > 0) {
+					this.choiceDatasourceId = datasourceOptions[0].id;
+				}
 			},
             datasourceChangeEvents() {
                 this.loadEditorData();