[ENH] Sparse index #2940

Job	Run time
test (3.8, ubuntu-latest, --ignore-glob 'chromadb/test/property/*' --ignore='chromadb/test/test_c...	6m 30s
test (3.8, ubuntu-latest, chromadb/test/property/test_add.py)	3m 48s
test (3.8, ubuntu-latest, chromadb/test/test_cli.py)	2m 35s
test (3.8, ubuntu-latest, chromadb/test/auth/test_simple_rbac_authz.py)	3m 27s
test (3.8, ubuntu-latest, chromadb/test/property/test_collections.py)	3m 9s
test (3.8, ubuntu-latest, chromadb/test/property/test_cross_version_persist.py)	9m 13s
test (3.8, ubuntu-latest, chromadb/test/property/test_embeddings.py)	17m 33s
test (3.8, ubuntu-latest, chromadb/test/property/test_filtering.py)	4m 1s
test (3.8, ubuntu-latest, chromadb/test/property/test_persist.py)	18m 53s
test (3.8, windows-latest, --ignore-glob 'chromadb/test/property/*' --ignore='chromadb/test/test_...	1m 44s
test (3.8, windows-latest, chromadb/test/property/test_add.py)	1m 40s
test (3.8, windows-latest, chromadb/test/test_cli.py)	1m 43s
test (3.8, windows-latest, chromadb/test/auth/test_simple_rbac_authz.py)	1m 46s
test (3.8, windows-latest, chromadb/test/property/test_collections.py)	1m 47s
test (3.8, windows-latest, chromadb/test/property/test_cross_version_persist.py)	1m 38s
test (3.8, windows-latest, chromadb/test/property/test_embeddings.py)	1m 52s
test (3.8, windows-latest, chromadb/test/property/test_filtering.py)	1m 37s
test (3.8, windows-latest, chromadb/test/property/test_persist.py)	1m 52s
	1h 24m 48s

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