Keyword, vector and hybrid searching cause less rows to be retrieved

[DudaNogueira]

Hi!

I believe this is the case of a higher efConstruction. From here:

Simple keyword search not working

HNSW is an approximate nearest neighbour algorithm. This means there is always a chance a vector will not be found in a search even though it would be found via brute force (using where filter). The solution to this problem is to re-index your data with higher efConstruction parameter (for example efConstruction=512) that way your newly built graph will have higher number of node candidates that will be considered during vector search.

HNSW is an approximate nearest neighbour algorithm. This means there is always a chance a vector will not be found in a search even though it would be found via brute force (using where filter).

The solution to this problem is to re-index your data with higher efConstruction parameter (for example efConstruction=512) that way your newly built graph will have higher number of node candidates that will be considered during vector search.