library(tictoc) library(rems) library(dplyr) packageVersion("duckdb") # 0.2.5, unreleased commit 57ed79e8ff17eedde0483509d4202e9e716e16ab start <- tic("download") download_historic_data(TRUE, FALSE) toc() tic("connect") con <- connect_historic_db() toc() tic("attach") hist_tbl <- attach_historic_data(con) toc() tic("dplyr") hist_df <- hist_tbl %>% select(EMS_ID, PARAMETER, COLLECTION_START, RESULT) %>% filter(EMS_ID %in% c("0121580", "0126400"), PARAMETER %in% c("Aluminum Total", "Cadmium Total", "Copper Total", " Zinc Total", "Turbidity")) %>% collect() toc() tic("disconnect") disconnect_historic_db(con) end <- toc() # Total time: end$toc - start
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