Trying to connect to Cassandra get error "Cannot read property 'results' of undefined"

[stasberkov]

Describe the bug
Trying to connect to Cassandra get error "Cannot read property 'results' of undefined"

"Error while preparing columns completions for connection cas06 Cannot read property 'results' of undefined"

To Reproduce
Just try to connect

Screenshots

Desktop (please complete the following information):

• SQLTools Version: 0.21.7
• VSCode Version: 1.44.2
• Driver Used/Version: Cassandra
• OS: Windows 10

[stasberkov]

@EpicEric please help

[EpicEric]

Which version of Cassandra are you using?

[stasberkov]

2.2.14

…

On Mon, Apr 27, 2020 at 4:33 PM Eric Rodrigues Pires < ***@***.***> wrote: Which version of Cassandra are you using? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#548 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA7CA3STP6PNSGTRJET5LX3ROV3TFANCNFSM4MR2XN5A> .

[EpicEric]

I can reproduce this error in Cassandra v2.2.14. It seems that Cassandra had a different way to store keyspace/table/column data prior to DataStax Enterprise v5 (equivalent to versions of Cassandra prior to 3.0). Hence, the current queries error out for older versions of Cassandra.

This would require using different queries (from the first link) depending on the system version, and whether the database is Cassandra or another CQL-like database (i.e. Scylla).

I can work on a fix as soon as I have some free time.

[EpicEric]

@stasberkov Sorry for taking so long to get back to you. I've opened PR #576, which should fix this.

[stasberkov]

@EpicEric thank you so much!