Auto index Creation Experiment

[cherylEnkidu]

This experiment provides the number used in RELATIVE_INDEX_READ_COST_PER_DOCUMENT for #4987 .
It runs query locally on collection contains 10 ~ 100 documents, compares the time spent between full collection scan and index look up. And the result relative number is used in Android SDK to decide whether index will help improve local query performance.

[github-actions]

Release note changes

No release note changes were detected. If you made changes that should be
present in the next release, ensure you've added an entry in the appropriate
CHANGELOG.md file(s).

[google-oss-bot]

	1 Warning
⚠️	Did you forget to add a changelog entry? (Add the 'no-changelog' label to the PR to silence this warning.)

Generated by 🚫 Danger

[google-oss-bot]

The public api surface has changed for the subproject firebase-firestore:
error: Added method com.google.firebase.firestore.PersistentCacheSettings.autoClientIndexingEnabled() [AddedMethod]
error: Added method com.google.firebase.firestore.PersistentCacheSettings.Builder.enableAutoClientIndexing(boolean) [AddedMethod]

Please update the api.txt files for the subprojects being affected by this change by running ./gradlew ${subproject}:generateApiTxtFile. Also perform a major/minor bump accordingly.

[google-oss-bot]

Coverage Report ¹

Affected Products

• firebase-firestore

  Overall coverage changed from 44.63% (6349a09) to 44.64% (153d70a) by +0.01%.

  Filename	Base (6349a09)	Merge (153d70a)	Diff
  DeleteMutation.java	95.24%	90.48%	-4.76%
  QueryEngine.java	99.00%	98.13%	-0.87%

Test Logs

• Base (6349a09): https://github.com/firebase/firebase-android-sdk/actions/runs/6040932992
• Merge (153d70a): https://github.com/firebase/firebase-android-sdk/actions/runs/6050600601

1. https://storage.googleapis.com/firebase-sdk-metric-reports/ipGev46pYj.html

[github-actions]

Unit Test Results

   166 files  +2     166 suites  +2   3m 4s ⏱️ +46s
1 206 tests +1  1 190 ✔️ +1  16 💤 ±0  0 ❌ ±0 
2 412 runs  +2  2 380 ✔️ +2  32 💤 ±0  0 ❌ ±0 

Results for commit 42e41ac. ± Comparison against base commit 6349a09.

♻️ This comment has been updated with latest results.

[google-oss-bot]

Size Report ¹

Affected Products

• firebase-firestore

  Type	Base (6349a09)	Merge (153d70a)	Diff
  aar	1.36 MB	1.36 MB	+194 B (+0.0%)
  apk (release)	3.95 MB	3.95 MB	+368 B (+0.0%)

Test Logs

• Base (6349a09): https://github.com/firebase/firebase-android-sdk/actions/runs/6040932992
• Merge (153d70a): https://github.com/firebase/firebase-android-sdk/actions/runs/6050600601

1. https://storage.googleapis.com/firebase-sdk-metric-reports/NWW0L7rNoy.html

[google-oss-bot]

Startup Time Report ¹

Note: Layout is sometimes suboptimal due to limited formatting support on GitHub. Please check this report on GCS.

Startup time comparison between the CI merge commit (80ce37a) and the base commit (dff55b6) are not available.

No macrobenchmark data found for the base commit (dff55b6). Analysis for the CI merge commit (80ce37a) can be found at:

• https://storage.googleapis.com/firebase-sdk-metric-reports/wHg7op12ph/index.html

1. https://storage.googleapis.com/firebase-sdk-metric-reports/nfg8Dp5KH0/index.html