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## Test of date and datetime types, based on earlier version in inst/devTests
##
## Dirk Eddelbuettel, 21 Oct 2008
dbTypeTests <- function(con, dateclass="timestamp without time zone", tz="UTC") {
cat("\n\n**** Trying with ", dateclass, "\n")
if (dbExistsTable(con, "tempostgrestable"))
dbRemoveTable(con, "tempostgrestable")
dbGetQuery(con, paste("create table tempostgrestable (tt ", dateclass, ", zz integer);", sep=""))
insstring <- '2008-07-01 14:15:16.123+00'
cat(paste('inserted string 1:', insstring))
cat("\n")
dbGetQuery(con, paste("insert into tempostgrestable values('", insstring, "', 1);", sep=""))
# now <- ISOdatetime(2000,1,2,3,4,5.678)
insstring <- '2000-01-02 03:04:05.678+00'
cat(paste('inserted string 2:', insstring))
cat("\n")
dbGetQuery(con, paste("insert into tempostgrestable values('", insstring, "', 2);", sep=""))
tt<-as.POSIXct(c("2008-07-01 23:45:16.123+0930","2000-01-02 13:34:05.678+1030"), format="%Y-%m-%d %H:%M:%OS%z")
print(tt)
dbGetQuery(con, paste("SET TIMEZONE TO '", tz, "'", sep=""))
data <- dbGetQuery(con, "select tt from tempostgrestable;")
times <- data[,1]
print(times)
if(as.double(tt[1]) == as.double(times[1])){
cat('PASS\n')
}else{
cat('FAIL\n')
}
if(as.double(tt[2]) == as.double(times[2])){
cat('PASS\n')
}else{
cat('FAIL\n')
}
dbRemoveTable(con, "tempostgrestable")
invisible(NULL)
}
## only run this if this env.var is set correctly
if ((Sys.getenv("POSTGRES_USER") != "") &
(Sys.getenv("POSTGRES_HOST") != "") &
(Sys.getenv("POSTGRES_DATABASE") != "")) {
## try to load our module and abort if this fails
stopifnot(require(RPostgreSQL))
## Force a timezone to make the tests comparable at different locations
Sys.setenv("TZ"="UTC")
tt<-as.POSIXct(c("2008-07-01 23:45:16.123+0930","2000-01-02 13:34:05.678+1030"), format="%Y-%m-%d %H:%M:%OS%z")
print(tt)
## load the PostgresSQL driver
drv <- dbDriver("PostgreSQL")
## can't print result as it contains process id which changes print(summary(drv))
## connect to the default db
con <- dbConnect(drv,
user=Sys.getenv("POSTGRES_USER"),
password=Sys.getenv("POSTGRES_PASSWD"),
host=Sys.getenv("POSTGRES_HOST"),
dbname=Sys.getenv("POSTGRES_DATABASE"),
port=ifelse((p<-Sys.getenv("POSTGRES_PORT"))!="", p, 5432))
cat('testing UTC')
dbTypeTests(con, "timestamp")
dbTypeTests(con, "timestamp with time zone")
cat('testing Asia/Tokyo')
dbTypeTests(con, "timestamp", tz="Asia/Tokyo")
dbTypeTests(con, "timestamp with time zone", tz="Asia/Tokyo")
cat('testing Australlia/South')
dbTypeTests(con, "timestamp", tz="Australia/South")
dbTypeTests(con, "timestamp with time zone", tz="Australia/South")
cat('testing America/New_York')
dbTypeTests(con, "timestamp", tz="America/New_York")
dbTypeTests(con, "timestamp with time zone", tz="America/New_York")
dbDisconnect(con)
}
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