# This code creates table ([stage].[mcaid_claim_line]) to hold DISTINCT
# line-level claim information
#
# It is designed to be run as part of the master Medicaid script:
# https://github.com/PHSKC-APDE/claims_data/blob/main/claims_db/db_loader/mcaid/master_mcaid_analytic.R
#
# Created by: Eli Kern, APDE, PHSKC, 2018-03-21
# R functions created by Alastair Matheson, PHSKC (APDE), 2019-05 and 2019-12
# Modified by: Philip Sylling, 2019-06-28
#
# Data Pull Run time: 7.68 min
# Create Index Run Time: 7.2 min
### Function elements
# conn = database connection
# server = whether we are working in HHSAW or PHClaims
# config = the YAML config file. Can be either an object already loaded into
# R or a URL that should be used
# get_config = if a URL is supplied, set this to T so the YAML file is loaded
load_stage_mcaid_claim_line_f <- function(conn = NULL,
server = c("hhsaw", "phclaims"),
config = NULL,
get_config = F) {
# Set up variables specific to the server
server <- match.arg(server)
if (get_config == T){
if (stringr::str_detect(config, "^http")) {
config <- yaml::yaml.load(getURL(config))
} else{
stop("A URL must be specified in config if using get_config = T")
}
}
from_schema <- config[[server]][["from_schema"]]
from_table <- config[[server]][["from_table"]]
to_schema <- config[[server]][["to_schema"]]
to_table <- config[[server]][["to_table"]]
ref_schema <- config[[server]][["ref_schema"]]
ref_table <- ifelse(is.null(config[[server]][["ref_table"]]), '',
config[[server]][["ref_table"]])
message("Creating ", to_schema, ".", to_table, ". This will take ~8 minutes to run.")
#### DROP EXISTING TABLE TO USE SELECT INTO ####
try(DBI::dbRemoveTable(conn, DBI::Id(schema = to_schema, table = to_table)))
#### LOAD TABLE ####
# NB: Changes in table structure need to altered here and the YAML file
insert_sql <- glue::glue_sql("SELECT id_mcaid
,claim_header_id
,claim_line_id
,first_service_date
,last_service_date
,rev_code
,rac_code_line
,last_run
INTO {`to_schema`}.{`to_table`}
FROM (
SELECT DISTINCT
MEDICAID_RECIPIENT_ID as id_mcaid
,TCN as claim_header_id
,CLM_LINE_TCN as claim_line_id
,FROM_SRVC_DATE as first_service_date
,TO_SRVC_DATE as last_service_date
,REVENUE_CODE as rev_code
,RAC_CODE_L as rac_code_line
,getdate() as last_run
FROM {`from_schema`}.{`from_table`}) a;",
.con = conn)
message("Loading to ", to_schema, ".", to_table)
time_start <- Sys.time()
DBI::dbExecute(conn = conn, insert_sql)
time_end <- Sys.time()
message("Loading took ", round(difftime(time_end, time_start, units = "secs"), 2),
" secs (", round(difftime(time_end, time_start, units = "mins"), 2),
" mins)")
#### ADD INDEX ####
add_index_f(conn, server = server, table_config = config)
}
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