add icebug-disk dataset

[aheev]

added dataset for LadybugDB/ladybug#429

[adsharma]

~/bin/lbug -i demo-db/icebug-disk/schema.cypher
-- Processing: demo-db/icebug-disk/schema.cypher
Opening the database under in-memory mode.
Enter ":help" for usage hints.
lbug> match(a)-[b:livesin]->(c) return a.*, b.*, c.*;
┌───────┬─────────┬──────────────┬───────┬───────┬───────────┬──────────────┬───────┐
│ a.id  │ a.name  │ a.population │ a.age │ c.id  │ c.name    │ c.population │ c.age │
│ INT32 │ STRING  │ INT64        │ INT64 │ INT32 │ STRING    │ INT64        │ INT64 │
├───────┼─────────┼──────────────┼───────┼───────┼───────────┼──────────────┼───────┤
│ 75    │ Noura   │              │ 25    │ 500   │ Guelph    │ 75000        │       │
│ 100   │ Adam    │              │ 30    │ 700   │ Waterloo  │ 150000       │       │
│ 250   │ Karissa │              │ 40    │ 700   │ Waterloo  │ 150000       │       │
│ 300   │ Zhang   │              │ 50    │ 600   │ Kitchener │ 200000       │       │
└───────┴─────────┴──────────────┴───────┴───────┴───────────┴──────────────┴───────┘

This query doesn't work for me after the PR.

[aheev]

match(a)-[b:livesin]->(c) return a., b., c.*;

works fine for me. Are you using the build from LadybugDB/ladybug#476 ?

[adsharma]

I was using a release binary. With the binary from #476, it works when I'm in that dir. But:

./build/release/tools/shell/lbug -i dataset/demo-db/icebug-disk/schema.cypher
..
Error: IO exception: Cannot open file nodes_user.parquet: No such file or directory

Perhaps you need something similar to:

20e78f00f shell: resolve parquet paths relative to init schema directory