Details
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Bug
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Status: Confirmed (View Workflow)
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Major
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Resolution: Unresolved
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11.4.2, 10.6, 10.11, 11.0(EOL), 11.2(EOL), 11.4, 11.5(EOL)
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None
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Docker official image
Description
Follow up of MDEV-27899.
With reference to the sample reproducer provided there, the SELECT query works, but when the query is used to create a view, then the view has the same issue originally reported.
So, having created and populated:
create table SyncopeUser (plainAttrs JSON); |
insert into SyncopeUser values ( |
'[
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{
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"values": [
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{
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"stringValue": "Rossini"
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}
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],
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"schema": "surname"
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},
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{
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"values": [
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{
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"dateValue": 1243288800000
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},
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{
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"dateValue": 1274824800000
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}
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],
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"schema": "loginDate"
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},
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{
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"uniqueValue": {
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"stringValue": "Gioacchino Rossini"
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},
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"schema": "fullname"
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},
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{
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"uniqueValue": {
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"stringValue": "rossini@apache.org"
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},
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"schema": "userId"
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}
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]'); |
then the following query works as expected, e.g. attrUniqueValue is non-null for some rows:
SELECT attrs.* |
FROM SyncopeUser u, JSON_TABLE(plainAttrs, '$[*]' COLUMNS ( |
plainSchema VARCHAR(255) PATH '$.schema', |
attrUniqueValue JSON PATH '$.uniqueValue' ERROR ON ERROR) |
) AS attrs; |
e.g.
| plainSchema | attrUniqueValue |
|---|---|
| surname | [NULL] |
| loginDate | [NULL] |
| fullname | {"stringValue": "Gioacchino Rossini" } |
| userId | {"stringValue": "rossini@apache.org"} |
So far, so good.
If we create a view as follows, instead:
CREATE VIEW user_search AS SELECT attrs.* |
FROM SyncopeUser u, JSON_TABLE(plainAttrs, '$[*]' COLUMNS ( |
plainSchema VARCHAR(255) PATH '$.schema', |
attrUniqueValue JSON PATH '$.uniqueValue' ERROR ON ERROR) |
) AS attrs; |
all seems to be fine, but any query like
SELECT * from user_search |
will return the error
[4178] [HY000]: Can't store an array or an object in the scalar column 'attrUniqueValue' of JSON_TABLE 'attrs'.
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Attachments
Issue Links
- relates to
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- Closed
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