[FLINK-20880] Turn Json String into Row

• Type: Improvement
• Status: Open
• Priority: Not a Priority
• Resolution: Unresolved
• Affects Version/s: 1.12.0
• Component/s: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
• Labels: auto-deprioritized-major auto-deprioritized-minor
• Assignee: Unassigned
• Reporter: tonychan
• Created: 07/Jan/21 09:03
• Updated: 07/Nov/21 10:38

Description

schema has  three params ,a,b,c

message a：{ "a": 1, "b": 1, "c": 2}   

message b：{ "a": 1, "b": null, "c": 2}   

message c：{ "a": 1,  "c": 2}   

 the schema is a,b,c  running the code as bleow

Row row = new Row(RowKind.INSERT,3);
row.setField(0,1);
row.setField(1,2);
row.setField(2,3);
System.out.println(row);

a:1,2,3

b:1,null,3

c:1,null,3

turn message into row , message a is ok, but we cant distinguish message b and message c if we use null, when deal message c ,we must use like NaN row(2,NaN),  i think row need a easy way to show message b and message c  with row