Open huaimin016 opened 1 month ago
I use select * from pg_vector_index_stat; to checkout index size, here is the result:
select * from pg_vector_index_stat;
19176892 19177456 pgvecto_rs_90_ivf pgvecto_rs_90_ivf_vector_idx NORMAL false 2781540 {2781540} {} 0 1580896555 {"vector":{"dimensions":512,"vector":"Veci8","distance":"Cos"},"segment":{"max_growing_segment_size":20000,"max_sealed_segment_size":30000000},"indexing":{"ivf":{"least_iterations":16,"iterations":500,"nlist":1000,"nsample":65536,"quantization":{"trivial":{}}}}}
In disk:
postgres@dddddd:~/16/main/pg_vectors/indexes/0000000000000000000000000000000066d137b44b7ae9220000000501249ff0$ du . -h 21M ./segments/51f8e269-845f-4154-8558-629302f1fa7f/indexing/quantization 1.5G ./segments/51f8e269-845f-4154-8558-629302f1fa7f/indexing/raw 1.5G ./segments/51f8e269-845f-4154-8558-629302f1fa7f/indexing 1.5G ./segments/51f8e269-845f-4154-8558-629302f1fa7f 1.5G ./segments 8.0K ./startup 1.5G .
why need raw index data? This increases the memory usage a lot. Is it necessary to save raw index data? Will this data be loaded into memory?
I use
select * from pg_vector_index_stat;to checkout index size, here is the result:In disk:
why need raw index data? This increases the memory usage a lot. Is it necessary to save raw index data? Will this data be loaded into memory?