[jira] [Created] (FLINK-25230) Harden type serialization in JSON plan

["Timo Walther (Jira)" <ji...@apache.org>]

Timo Walther created FLINK-25230:
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             Summary: Harden type serialization in JSON plan
                 Key: FLINK-25230
                 URL: https://issues.apache.org/jira/browse/FLINK-25230
             Project: Flink
          Issue Type: Sub-task
            Reporter: Timo Walther


1. Introduce two representations for LogicalType

Compact one (using asSerializableString):

{code}
// compact one
outputType: "ROW<i INT, s VARCHAR(2147483647)>"

// full one for all kinds of logical types (time attributes, char(0), inline structured, etc.)
outputType: {
  "root" : "ROW",
  "nullable" : true,
  "fields" : [ {
    "i" : "INT"
  }, {
    "s" : "VARCHAR(2147483647)"
  }]
}
{code}

2. Drop support of legacy types and symbol classes which should not be part of the plan

3. Rework DataView support (shorten, remove concrete classes, support any external type in accumulators)

4. Implement a DataTypeJsonDeSerializer

5. Replace RelDataTypeJsonDeSerializer with LogicalTypeJsonDeSerializer



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