[
https://issues.apache.org/jira/browse/AVRO-3901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Simon Gittins updated AVRO-3901:
--------------------------------
Description:
Want to be able to serde to/from an enum containing structs for a union schema
containing record(s):
{code:json}
{
"name": "C",
"type": "record",
"fields": [
...
\{"name": "field_union", "type": ["A", "B"]},
...
]
}
{code}
With code like:
struct A \{...}
struct B \{...}
#[serde(untagged)]
enum UnionAB \{ A(A), B(B)}
struct C {
...
field_union: UnionAB,
...
}
Likewise, want to be able to serde where the schema includes null:
{code:json}
{
"name": "E",
"type": "record",
"fields": [
...
\{"name": "field_union", "type": ["A", "null", "B"]},
...
]
}
{code}
#[serde(untagged)]
enum UnionANoneB {
A(A),
None,
B(B),
}
was:
Want to be able to serde to/from an enum containing structs for a union schema
containing record(s):
{{{}}
{{ "name": "C",}}
{{ "type": "record",}}
{{ "fields": [}}
{{...}}
{{ \{"name": "field_union", "type": ["A", "B"]},}}
{{...}}
{{ ]}}
{{}}}
With code like:
{{struct A \{...}}}
{{struct B \{...}}}
{{#[serde(untagged)]}}
{{{}enum UnionAB \{ A(A), B(B)}{}}}{{{}struct C {{}}}
{{ ...}}
{{ field_union: UnionAB,}}
{{ ...}}
{{}}}
{{Likewise, want to be able to serde where the schema includes null:}}
{{{}}
{{ "name": "E",}}
{{ "type": "record",}}
{{ "fields": [}}
{{ ...}}
{{ \{"name": "field_union", "type": ["A", "null", "B"]},}}
{{ ...}}
{{ ]}}
{{}}}
{{#[serde(untagged)]}}
{{enum UnionANoneB {}}
{{ A(A),}}
{{ None,}}
{{ B(B),}}
{{}}}
> [Rust] Better serde union support
> ---------------------------------
>
> Key: AVRO-3901
> URL: https://issues.apache.org/jira/browse/AVRO-3901
> Project: Apache Avro
> Issue Type: Improvement
> Components: rust
> Affects Versions: 1.11.3
> Reporter: Simon Gittins
> Priority: Major
>
> Want to be able to serde to/from an enum containing structs for a union
> schema containing record(s):
> {code:json}
> {
> "name": "C",
> "type": "record",
> "fields": [
> ...
> \{"name": "field_union", "type": ["A", "B"]},
> ...
> ]
> }
> {code}
> With code like:
> struct A \{...}
> struct B \{...}
> #[serde(untagged)]
> enum UnionAB \{ A(A), B(B)}
> struct C {
> ...
> field_union: UnionAB,
> ...
> }
> Likewise, want to be able to serde where the schema includes null:
> {code:json}
> {
> "name": "E",
> "type": "record",
> "fields": [
> ...
> \{"name": "field_union", "type": ["A", "null", "B"]},
> ...
> ]
> }
> {code}
> #[serde(untagged)]
> enum UnionANoneB {
> A(A),
> None,
> B(B),
> }
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