Python: Fix Cosmos DB NoSQL vector search functionality (issue #13028)

[xiaohei520321]

Summary

Fixes vector search functionality in Cosmos DB NoSQL connector that was failing with syntax errors and "One of the input values is invalid" errors.

Changes

• Fixed VectorDistance function call to use correct 2-parameter syntax instead of 4 parameters
• Removed RANK keyword from ORDER BY clause to fix SQL syntax error
• Removed distance function parameter setting as it should be configured in vector index, not query
• Added proper handling for empty where clauses

Testing

• Verified fix resolves the syntax errors reported in issue Python: it is a bug: missing a comma #13028
• Vector search functionality now works correctly with existing collections

Fixes #13028

[moonbox3]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
connectors
azure_cosmos_db.py	401	166	58%	181, 198, 204–206, 316, 318, 393, 397, 413–416, 418–421, 423–424, 437–440, 443–445, 451–452, 454, 461–463, 467–469, 492–494, 500–502, 508–509, 511, 516, 533, 608, 625, 628–629, 637, 647–651, 708, 711–712, 749, 751, 764–765, 769–771, 782–785, 788–789, 791–792, 798–803, 808–810, 812–816, 820–821, 829–834, 853–855, 857–860, 868, 875–880, 882–896, 898–909, 912, 914–915, 918–919, 922, 924–929, 935, 939, 963, 991–992, 996–1001, 1093–1098
TOTAL	27115	4727	82%

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
3719	22 💤	0 ❌	0 🔥	1m 37s ⏱️

[moonbox3]

@xiaohei520321 thanks for the fix. Please install the pre-commit locally so it can run the necessary checks. See this DEV_SETUP guide, specifically:

uv run pre-commit install -c python/.pre-commit-config.yaml

Currently, there's a ruff formatting error that needs to be fixed.

[xiaohei520321]

@xiaohei520321 thanks for the fix. Please install the pre-commit locally so it can run the necessary checks. See this DEV_SETUP guide, specifically:

uv run pre-commit install -c python/.pre-commit-config.yaml

Currently, there's a ruff formatting error that needs to be fixed.

ok, I will run pre-commit and fix the error

[moonbox3]

@xiaohei520321 it doesn't look like the pre-commit is being run properly. There are still ruff formatting errors that must be fixed. See these error logs.

[xiaohei520321]

@xiaohei520321 it doesn't look like the pre-commit is being run properly. There are still ruff formatting errors that must be fixed. See these error logs.

I pull main branch and merged main branch, and also run pre-commit again to solve code style, it triggered a lots of changes in uv.lock. And I commit the uv.lock changes also. Is it right now ?

[xiaohei520321]

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