[GitHub] [skywalking] yazong commented on issue #5013: 8.0.0-8.0.1。table:endpoint_relation_server_side,column:entity_id .Data too long for column 'entity_id' at row 1

[GitBox]

yazong commented on issue #5013:
URL: https://github.com/apache/skywalking/issues/5013#issuecomment-655387084


   @wu-sheng 
   
   1)
   i found that the length value of these files was also set at 200.
   i did not see any related problems.
   so i was not sure,so i did not change it.
   
   PercentileFunction
   HistogramFunction
   AvgHistogramFunction
   AvgFunction
   
   2)
   
   @ScopeDefaultColumn.VirtualColumnDefinition(fieldName = "entityId", 
columnName = "entity_id", isID = true, type = String.class)
   public class ServiceInstanceRelation extends Source {
   
   @Target({ElementType.TYPE})
       @Retention(RetentionPolicy.RUNTIME)
       public @interface VirtualColumnDefinition {
           String fieldName();
   
           String columnName();
   
           Class type();
   
           boolean isID() default false;
   
           /**
            * Define column length, only effective when the type is String.
            */
           int length() default 512;
       }
   
   why do the same fields have different lengths?
   
   
   


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