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[firestore-emulator] Queries don't work in "datastore-mode" #6827

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artoale opened this issue Feb 29, 2024 · 1 comment
Closed

[firestore-emulator] Queries don't work in "datastore-mode" #6827

artoale opened this issue Feb 29, 2024 · 1 comment
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emulators: firestore type: bug

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@artoale
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artoale commented Feb 29, 2024 •
edited

[REQUIRED] Environment info

firebase-tools: Using the gcloud cli version 465.0.0, firestore emulator: 1.19.1

Platform: macOS (intel)

[REQUIRED] Test case

import os

from google.cloud import datastore
from google.cloud.datastore.query import PropertyFilter

def main():
    def get_new_client():
        return datastore.Client(
            project=os.environ.get("GCLOUDC_PROJECT_ID", "test"),
            namespace=None,
            _http=None,
        )

    client = get_new_client()
    kind = "a_kind"
    query = client.query(kind=kind)
    res = query.add_filter(filter=PropertyFilter("username", "=", "a_username")).fetch()

    if len(list(res)) > 0:
        print("found!")
    else:
        print("not found!")

if __name__ == "__main__":
    main()

[REQUIRED] Steps to reproduce

  1. Start the emulator with gcloud emulators firestore start --host-port=127.0.0.1:10901 --database-mode=datastore-mode
  2. Install the python deps: pip install google-cloud-datastore==2.19.0
  3. Set the DATASTORE_EMULATOR_HOST and DATASTORE_PROJECT_ID env vars accordingly
  4. Run the above python script

[REQUIRED] Expected behavior

Either "found!" or "not found!" is printed to console.

[REQUIRED] Actual behavior

An exception is raised:

Traceback (most recent call last):
  File "XXX/dev/experiments/firestore-emulator/./test_firestore_in_datastore.py", line 153, in <module>
    main()
  File "XXX/dev/experiments/firestore-emulator/./test_firestore_in_datastore.py", line 146, in main
    run_some_code()
  File "XXX/dev/experiments/firestore-emulator/./test_firestore_in_datastore.py", line 106, in run_some_code
    if len(list(res)) > 0:
           ^^^^^^^^^
  File "XXX/.pyenv/versions/firestore-emulator/lib/python3.11/site-packages/google/api_core/page_iterator.py", line 208, in _items_iter
    for page in self._page_iter(increment=False):
  File "XXX/.pyenv/versions/firestore-emulator/lib/python3.11/site-packages/google/api_core/page_iterator.py", line 244, in _page_iter
    page = self._next_page()
           ^^^^^^^^^^^^^^^^^
  File "XXX/.pyenv/versions/firestore-emulator/lib/python3.11/site-packages/google/cloud/datastore/query.py", line 845, in _next_page
    entity_pbs = self._process_query_results(response_pb)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "XXX/.pyenv/versions/firestore-emulator/lib/python3.11/site-packages/google/cloud/datastore/query.py", line 766, in _process_query_results
    raise ValueError("Unexpected value returned for `more_results`.")
ValueError: Unexpected value returned for `more_results`

Additional infos

For debugging purposes, I've inspected the returned response_pb and more_results is set to 0, equivalent to MORE_RESULTS_TYPE_UNSPECIFIED which, according to the spec, should never be provided.
@artoale artoale changed the title [firestore-emulator] Query don't work in "datastore-mode" [firestore-emulator] Queries don't work in "datastore-mode" Feb 29, 2024
@joehan joehan mentioned this issue Mar 4, 2024
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@joehan
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joehan commented Mar 5, 2024

Should be fixed by #6832, which will go out in the next release. Thanks for reporting this!

@joehan joehan closed this as completed Mar 5, 2024
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@artoale @joehan @aalej