PostgreSQL (contrib)
- Entity dataframes can be provided as a SQL query or can be provided as a Pandas dataframe. A Pandas dataframes will be uploaded to Postgres as a table in order to complete join operations.
The PostgreSQL offline store does not achieve full test coverage. Please do not assume complete stability.
In order to use this offline store, you'll need to run
pip install 'feast[postgres]'. You can get started by then running feast init -t postgres.feature_store.yaml
project: my_project
registry: data/registry.db
provider: local
offline_store:
type: postgres
host: DB_HOST
port: DB_PORT
database: DB_NAME
db_schema: DB_SCHEMA
user: DB_USERNAME
password: DB_PASSWORD
sslmode: verify-ca
sslkey_path: /path/to/client-key.pem
sslcert_path: /path/to/client-cert.pem
sslrootcert_path: /path/to/server-ca.pem
online_store:
path: data/online_store.db
Note that
sslmode, sslkey_path, sslcert_path, and sslrootcert_path are optional parameters. The full set of configuration options is available in PostgreSQLOfflineStoreConfig.The set of functionality supported by offline stores is described in detail here. Below is a matrix indicating which functionality is supported by the PostgreSQL offline store.
Text | Postgres |
|---|---|
get_historical_features (point-in-time correct join) | yes |
pull_latest_from_table_or_query (retrieve latest feature values) | yes |
pull_all_from_table_or_query (retrieve a saved dataset) | yes |
offline_write_batch (persist dataframes to offline store) | no |
write_logged_features (persist logged features to offline store) | no |
Below is a matrix indicating which functionality is supported by
PostgreSQLRetrievalJob.Text | Postgres |
|---|---|
export to dataframe | yes |
export to arrow table | yes |
export to arrow batches | no |
export to SQL | yes |
export to data lake (S3, GCS, etc.) | yes |
export to data warehouse | yes |
export as Spark dataframe | no |
local execution of Python-based on-demand transforms | yes |
remote execution of Python-based on-demand transforms | no |
persist results in the offline store | yes |
preview the query plan before execution | yes |
read partitioned data | yes |
To compare this set of functionality against other offline stores, please see the full functionality matrix.
Last modified 1yr ago