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updated recommended vector indexes #88

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updated recommended vector indexes #88

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0c22aa7
added "vector" tag, fixed bug in INSERT statement
rohitbhamidipati Apr 30, 2024
4c149f4
changed recommended indexes
rohitbhamidipati May 1, 2024
ecf3aef
Merge branch 'singlestore-labs:master' into master
rohitbhamidi May 1, 2024
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42 changes: 7 additions & 35 deletions notebooks/searching-all-of-wikipedia/notebook.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -308,7 +308,7 @@
"source": [
"## Part 3: Building the vector indexes\n",
"\n",
"Now, we have all the data in our table `vecs`. Let's go ahead and build our vector index. SingleStore gives us many options for our index with many tunable parameters. We will stick with the IVF indexes with default parameters."
"Now, we have all the data in our table `vecs`. Let's go ahead and build our vector index. SingleStore gives us many options for our index with many tunable parameters. We will stick with the `IVF_PQFS` and `HNSW_FLAT` indexes with default parameters."
]
},
{
Expand All @@ -319,7 +319,7 @@
"outputs": [],
"source": [
"%%sql\n",
"alter table vecs add vector index auto (v) INDEX_OPTIONS '{\"index_type\":\"AUTO\"}';"
"alter table vecs add vector index ivf_pqfs (v) INDEX_OPTIONS '{\"index_type\":\"IVF_PQFS\"}';"
]
},
{
Expand All @@ -330,18 +330,7 @@
"outputs": [],
"source": [
"%%sql\n",
"alter table vecs add vector index ivf_flat (v) INDEX_OPTIONS '{\"index_type\":\"IVF_FLAT\"}';"
]
},
{
"cell_type": "code",
"execution_count": 14,
"id": "55de3a82-4e6f-4e8b-9fbd-8f5370fd4145",
"metadata": {},
"outputs": [],
"source": [
"%%sql\n",
"alter table vecs add vector index ivf_pq (v) INDEX_OPTIONS '{\"index_type\":\"IVF_PQ\"}';"
"alter table vecs add vector index hnsw_flat (v) INDEX_OPTIONS '{\"index_type\":\"HNSW_FLAT\"}';"
]
},
{
Expand Down Expand Up @@ -389,7 +378,7 @@
"-- AUTO index\n",
"select paragraph, v <*> @qv as sim\n",
"from vecs\n",
"order by sim use index (auto) desc\n",
"order by sim use index (ivf_pqfs) desc\n",
"limit 5;"
]
},
Expand All @@ -406,24 +395,7 @@
"-- IVF_FLAT\n",
"select paragraph, v <*> @qv as sim\n",
"from vecs\n",
"order by sim use index (ivf_flat) desc\n",
"limit 5;"
]
},
{
"cell_type": "code",
"execution_count": 18,
"id": "40ea859c-c57a-4624-965f-94a18cd05c90",
"metadata": {},
"outputs": [],
"source": [
"%%sql\n",
"set @qv = (select v from vecs where id = 1125899906845489);\n",
"\n",
"-- IVF_PQ\n",
"select paragraph, v <*> @qv as sim\n",
"from vecs\n",
"order by sim use index (ivf_pq) desc\n",
"order by sim use index (hnsw_flat) desc\n",
"limit 5;"
]
},
Expand Down Expand Up @@ -464,7 +436,7 @@
"vs as (\n",
" select id, paragraph, v <*> @v_mario as score\n",
" from vecs\n",
" order by score use index (auto) desc\n",
" order by score use index (ivf_pqfs) desc\n",
" limit 200\n",
")\n",
"select vs.id,\n",
Expand Down Expand Up @@ -567,7 +539,7 @@
" statement = sa.text(\n",
" f'''select paragraph, v <*> :query_embedding :> vector(1536) AS similarity\n",
" from vecs\n",
" order by similarity use index (auto) desc\n",
" order by similarity use index (ivf_pqfs) desc\n",
" limit :limit;'''\n",
" )\n",
" print(\"Searching for matches...\")\n",
Expand Down
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