UPDATE #9:1 SET foo.bar = (INSERT INTO...) Syntax Not Working

[big213]

OrientDB Version: 3.0.8

Java Version: 1.8.0_141

OS: Windows 7

Expected behavior

UPDATE ... SET foo.bar = (INSERT INTO...) successfully updates the linkmap with the inserted record (it worked fine in OrientDB 2.2x)

Actual behavior

Fails, returns java.lang.ClassCastException: java.util.ArrayList cannot be cast to com.orientechnologies.orient.core.db.record.OIdentifiable

Steps to reproduce

CREATE VERTEX V SET foo = {}
UPDATE #9:1 SET foo.bar = (INSERT INTO V SET val = 1)

What does work is if I do:
CREATE VERTEX V SET id = 1, foo = {} //#9:1
CREATE VERTEX V SET id = 2 //#9:2
UPDATE #9:1 SET foo.bar = #9:2 OK

[big213]

It appears that the same issue occurs with the map() function. Consider this example, where I try to create vertex and populate a linkmap in the same query. Maybe this kind of syntax is too much, but should there be a way to do this kind of action in the same query?

CREATE VERTEX V SET foo = map("key1", (INSERT INTO V SET id = 1), "key2", (INSERT INTO V SET id = 2))

[luigidellaquila]

Hi @big213

I just pushed a fix to 3.0.x branch, it will be released with v 3.0.9

Thanks

Luigi

[big213]

@luigidellaquila Thank you for the quick attention to this issue. However, I just hope that the fix will also address the following query, could you please check?

CREATE VERTEX V SET foo = map("key1", (INSERT INTO V SET id = 1), "key2", (INSERT INTO V SET id = 2))

[luigidellaquila]

Hi @big213

Subqueries in that context are not supported by the SQL executor (for now at least)

Thanks

Luigi

[big213]

@luigidellaquila thanks for letting me know. I believe it was working as recently as OrientDB 3.0.7, so it is a bit unfortunate that it is no longer supported. How about this query, will it be supported in 3.0.9?

CREATE VERTEX V SET foo = { "key1": (INSERT INTO V SET id = 1), "key2": (INSERT INTO V SET id = 2) }

or...

CREATE VERTEX V SET foo = {}, foo.key1 = (INSERT INTO V SET id=1), foo.key2 = (INSERT INTO V SET id=2) (this worked in OrientDB 2.2.x)

Basically, I'm looking for a way to create and populate a linkmap in the same query.

[luigidellaquila]

Hi @big213

I'd say it's quite unlikely, it never worked in v 3.0.x.
We will likely support it in the near future.

Thanks

Luigi

[big213]

Hi @luigidellaquila

It looks like OrientDB 3.0.9 has been released, and I tried to test if these queries were functional:

CREATE VERTEX V SET foo = {}
UPDATE #9:1 SET foo.bar = (INSERT INTO V SET val = 1)

This will work with no defined fields, but if field foo has been defined as a LINKMAP on V, it will still return the following error:

java.lang.ClassCastException: java.util.ArrayList cannot be cast to com.orientechnologies.orient.core.db.record.OIdentifiable

[luigidellaquila]

Hi @big213

I just pushed another fix, now it should be OK also in that case

Thanks

Luigi