Create a data source from datasets — pathling_read_datasets • pathling

Creates an immutable, ad-hoc data source from a named list of Spark datasets indexed with resource type codes.

pathling_read_datasets(pc, resources)

Arguments

pc: The PathlingContext object.
resources: A name list of Spark datasets, where the keys are resource type codes and the values are the data frames containing the resource data.

Value

A DataSource object that can be used to run queries against the data.

See also

Pathling documentation - Reading datasets

Other data source functions: pathling_read_bulk(), pathling_read_bundles(), pathling_read_delta(), pathling_read_ndjson(), pathling_read_parquet(), pathling_read_tables()

Examples

if (FALSE) { # \dontrun{
patient_df <- pc %>% pathling_example_resource("Patient")
condition_df <- pc %>% pathling_example_resource("Condition")
data_source <- pc %>% pathling_read_datasets(list(Patient = patient_df, Condition = condition_df))
data_source %>%
  ds_read("Patient") %>%
  sparklyr::sdf_nrow()
} # }