RPostgreSQL (version 0.6-2)

dbSetDataMappings-methods: Set data mappings between PostgreSQL and R/S-Plus

Description

Not yet implemented

Methods

res

a PostgreSQLResult object as returned by dbSendQuery.

flds

a data.frame with field descriptions as returned by dbColumnInfo.

…

any additional arguments are passed to the implementing method.

References

See the Database Interface definition document DBI.pdf in the base directory of this package or https://cran.r-project.org/package=DBI.

See Also

PostgreSQL, dbSendQuery, fetch, dbColumnInfo.

Examples

# NOT RUN {
makeImage <- function(x) {
  .C("make_Image", as.integer(x), length(x))
}

res <- dbSendQuery(con, statement)
flds <- dbColumnInfo(res)
flds[3, "Sclass"] <- makeImage

dbSetDataMappings(rs, flds)

im <- fetch(rs, n = -1)
# }