[teiid-issues] [JBoss JIRA] (TEIID-3056) MongoDB: Put nested JSON documents in one single table
Ramesh Reddy created TEIID-3056:
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Summary: MongoDB: Put nested JSON documents in one single table
Key: TEIID-3056
URL: https://issues.jboss.org/browse/TEIID-3056
Project: Teiid
Issue Type: Enhancement
Security Level: Public (Everyone can see)
Components: Misc. Connectors
Affects Versions: 8.7
Environment: MongoDB with Teiid
Reporter: Ivan Chan
Assignee: Ramesh Reddy
Currently, it seems like ID needs to be appear in parent and child for nested documents.
But it is unlikely a case for MongoDB customers. It would be nice if Teiid can flatten
out data in one single table. Therefore, users would not need to insert parent id in the
child document in order for Teiid to work.
I am thinking the following case. For example I have a JSON object like this:
{code}
Customer
{
_id: 1374932,
FirstName: "John",
LastName: "Doe",
Address: {
_id: 43839430,
Street: "123 Lane",
City: "New York",
State: "NY",
Zipcode: "12345"
}
}
{code}
In this case, customer._id doesn't exist inside Address. There is no way to do join
in regular SQL fashion. But it would be nice if teiid can put the column from parent and
child into a single table. Maybe something similar to the following schema:
{code}
CREATE FOREIGN TABLE Customer (
CustomerId integer PRIMARY KEY,
FirstName varchar(25),
LastName varchar(25),
address__id integer,
address_Street varchar(50),
address_City varchar(25),
address_State varchar(25),
address_Zipcode varchar(6),
) OPTIONS(UPDATABLE 'TRUE');
{code}
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