pgvector is used at run time in 4 crates (of which 3 optionally).

Depender (with downloads and own rev deps) pgvector version
1.3K 2 langchain-rust optional ^0.3.2
120 1 sqlm-postgres-macros optional ^0.3
110 sqlm-postgres optional ^0.3
rag-toolchain optional ^0.3.2