bug: Hello World pipeline example does not work (CLI & Jupyter)

[kevinjnguyen]

Description The provided example in the 4th query on the Hello World CLI public documentation does not work. This example:

# How many big purchases happen each hour and where?
let cadence = hourly()

# Anything can be named and re-used
let hourly_big_purchases = purchase
| when(Purchase.amount > 10)

# Filter anywhere
| count(window=since(cadence))

# Aggregate anything
| when(cadence)

# Shift timelines relative to each other
let purchases_now = count(Purchase)
let purchases_yesterday =
   purchases_now | shift_by(days(1))

# Records are just another type
in { hourly_big_purchases, purchases_in_last_day: purchases_now - purchases_yesterday }
| extend({
  # …modify them sequentially
  last_visit_region: last(Pageview.region)
})

To Reproduce Steps to reproduce the behavior:

1. Follow the steps in the onboarding CLI hello world doc: https://kaskada.io/docs-site/kaskada/main/getting-started/hello-world-cli.html#querying-data

Actual Behavior This error is returned:

Executing query...


state: STATE_FAILURE
config:
  dataTokenId: 6c2ac48f-6490-41cb-a146-23800d901562
analysis: {}
fenlDiagnostics:
  fenlDiagnostics:
  - severity: SEVERITY_ERROR
    code: E0006
    message: Unbound reference
    formatted: |+
      error[E0006]: Unbound reference
        --> Query:5:28
        |
      5 | let hourly_big_purchases = purchase
        |                            ^^^^^^^^ No reference named 'purchase'
        |
        = Nearest matches: 'Purchase', 'cadence'

  - severity: SEVERITY_ERROR
    code: E0006
    message: Unbound reference
    formatted: |+
      error[E0006]: Unbound reference
         --> Query:23:27
         |
      23 |   last_visit_region: last(Pageview.region)
         |                           ^^^^^^^^ No reference named 'Pageview'
         |
         = Nearest matches: 'cadence', 'Purchase', '$input', 'purchases_now', 'purchases_yesterday'

  numErrors: "2"
metrics: {}
requestDetails:
  requestId: 1dce10248b88c9b3a04bf6fe7fbec104

Expected Behavior The query runs and I understand what's happening.

Additional context N/A

Relevant Logs / Links N/A

[epinzur]

Note that the first error will be fixed by #328, but the 2nd error still needs to be looked into

[epinzur]

Note that this issue is not specific to the CLI getting-started. It is also present in the python/jupyter getting started: https://kaskada.io/docs-site/kaskada/main/getting-started/hello-world-jupyter.html