Configuration property fixed at build time - All other configuration properties are overridable at runtime

Configuration property

Type

Default

quarkus.langchain4j.pgvector.datasource

The name of the configured Postgres datasource to use for this store. If not set, the default datasource from the Agroal extension will be used.

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_DATASOURCE

string

quarkus.langchain4j.pgvector.table

The table name for storing embeddings

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_TABLE

string

embeddings

quarkus.langchain4j.pgvector.dimension

The dimension of the embedding vectors. This has to be the same as the dimension of vectors produced by the embedding model that you use. For example, AllMiniLmL6V2QuantizedEmbeddingModel produces vectors of dimension 384. OpenAI’s text-embedding-ada-002 produces vectors of dimension 1536.

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_DIMENSION

int

required

quarkus.langchain4j.pgvector.use-index

Use index or not

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_USE_INDEX

boolean

false

quarkus.langchain4j.pgvector.index-list-size

index size

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_INDEX_LIST_SIZE

int

0

quarkus.langchain4j.pgvector.create-table

Create table or not

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_CREATE_TABLE

boolean

true

quarkus.langchain4j.pgvector.drop-table-first

Drop table or not

Environment variable: QUARKUS_LANGCHAIN4J_PGVECTOR_DROP_TABLE_FIRST

boolean

false