Converts to timestamp. — dbAsDate • rpostgis

Convert a date field to a timestamp with or without time zone.

Usage

dbAsDate(conn, name, date = "date", tz = NULL, display = TRUE, exec = TRUE)

Arguments

conn: A connection object.
name: A character string specifying a PostgreSQL table name.
date: A character string specifying the date field.
tz: A character string specifying the time zone, in "EST", "America/New_York", "EST5EDT", "-5".
display: Logical. Whether to display the query (defaults to TRUE).
exec: Logical. Whether to execute the query (defaults to TRUE).

Value

If exec = TRUE, returns TRUE if the conversion was successful.

See also

The PostgreSQL documentation: http://www.postgresql.org/docs/current/static/datatype-datetime.html

Author

Mathieu Basille mathieu@basille.org

Examples

## Example uses a dummy connection from DBI package
conn <- DBI::ANSI()
dbAsDate(conn, name = c("schema", "table"), date = "date", tz = "GMT",
    exec = FALSE)
#> Query not executed:
#> ALTER TABLE "schema"."table"
#>     ALTER COLUMN "date" TYPE timestamptz
#>     USING
#>         "date"::timestamp AT TIME ZONE 'GMT';