Exception when rel table is not imported

[rfdavid]

Environment: OSX 11.7 (binary) and Ubuntu 20 (debug)

An exception occurs when executing the following steps:

1. Create a node table User
2. Create a relationship table Follows,
3. Import demo-db/user.csv
4. Query MATCH (a:User)-[f:Follows]->(b:User)

The exception does not occur if step 3 is executed before step 2 (importing user.csv before creating the relationship table Follows). Rather, the result return empty, which I assume is the desired output.

➜  shell git:(master) ✗ ./kuzu_shell -i db
Opened the database at path: db
Enter ":help" for usage hints.
kuzu> CREATE NODE TABLE User(name STRING, age INT64, PRIMARY KEY (name));
-------------------------------------
| NodeTable: User has been created. |
-------------------------------------
(1 tuple)
Time: 6.40ms (compiling), 9.51ms (executing)
kuzu> CREATE REL TABLE Follows(FROM User TO User, since INT64);
---------------------------------------
| RelTable: Follows has been created. |
---------------------------------------
(1 tuple)
Time: 1.70ms (compiling), 10.66ms (executing)
kuzu> MATCH (a:User)-[f:Follows]->(b:User) RETURN a.name, b.name, f.since;
-----------------------------
| a.name | b.name | f.since |
-----------------------------
(0 tuples)
Time: 45.32ms (compiling), 1.83ms (executing)
kuzu> COPY User FROM "user.csv";
------------------------------------------------------
| 4 number of tuples has been copied to table: User. |
------------------------------------------------------
(1 tuple)
Time: 0.69ms (compiling), 15.31ms (executing)
kuzu> MATCH (a:User)-[f:Follows]->(b:User) RETURN a.name, b.name, f.since;
kuzu_shell: /home/rfdavid/Devel/waterloo/kuzu/src/storage/storage_structure/disk_array.cpp:346: U& kuzu::storage::BaseInMemDiskArray<U>::operator[](uint64_t) [with U = unsigned int; uint64_t = long unsigned int]: Assertion `apCursor.pageIdx < this->header.numAPs' failed.
[1]    224357 abort (core dumped)  ./kuzu_shell -i db

[acquamarin]

Hi David!
Thanks for reporting the bug to us.

The reason for this bug is that:
The adjLists which stores in the Follows relTable for the nodes that you added through COPY User FROM "user.csv"; is not initialized properly. We will fix this bug as soon as possible.