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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