feat: 更新数据库索引和分页逻辑，优化查询性能

src/modules/network_data/repository/cdr_event_ims.go

@@ -254,6 +254,9 @@ func (r CDREventIMS) SelectByPage(querys model.CDREventIMSQuery) ([]model.CDREve
 		tx = tx.Order(sortField)
 	}
 
+	if querys.PageSize == 0 {
+		querys.PageSize = total
+	}
 	// 查询数据分页
 	pageNum, pageSize := datasource.PageNumSize(querys.PageNum, querys.PageSize)
 	tx = tx.Limit(pageSize).Offset(pageSize * pageNum)

src/modules/network_data/repository/cdr_event_sgwc.go

@@ -63,6 +63,9 @@ func (r CDREventSGWC) SelectByPage(querys model.CDREventSGWCQuery) ([]model.CDRE
 		tx = tx.Order(sortField)
 	}
 
+	if querys.PageSize == 0 {
+		querys.PageSize = total
+	}
 	// 查询数据分页
 	pageNum, pageSize := datasource.PageNumSize(querys.PageNum, querys.PageSize)
 	tx = tx.Limit(pageSize).Offset(pageSize * pageNum)

src/modules/network_data/repository/cdr_event_smf.go

@@ -235,6 +235,9 @@ func (r CDREventSMF) SelectByPage(querys model.CDREventSMFQuery) ([]model.CDREve
 		tx = tx.Order(sortField)
 	}
 
+	if querys.PageSize == 0 {
+		querys.PageSize = total
+	}
 	// 查询数据分页
 	pageNum, pageSize := datasource.PageNumSize(querys.PageNum, querys.PageSize)
 	tx = tx.Limit(pageSize).Offset(pageSize * pageNum)

src/modules/network_data/repository/cdr_event_smsc.go

@@ -255,6 +255,9 @@ func (r CDREventSMSC) SelectByPage(querys model.CDREventSMSCQuery) ([]model.CDRE
 		tx = tx.Order(sortField)
 	}
 
+	if querys.PageSize == 0 {
+		querys.PageSize = total
+	}
 	// 查询数据分页
 	pageNum, pageSize := datasource.PageNumSize(querys.PageNum, querys.PageSize)
 	tx = tx.Limit(pageSize).Offset(pageSize * pageNum)