Drop a Postgres schema

Drop a schema if it exists.

drop_schema(
  conn,
  conn_fun,
  schema,
  cascade = FALSE,
  if_exists = TRUE,
  verbose = TRUE,
  render_sql = TRUE,
  render_only = FALSE,
  ...
)

Arguments

...	Additional arguments passed to the DatabaseConnector::dbSendStatement function

See also

Other schema functions: create_schema(), drop_cascade(), drop_if_exists()

Other drop functions: drop_all_staging_tables(), drop_cascade(), drop_if_exists(), drop_table_batch(), drop_table()

Examples

library(pg13)
create_test_schema <-
        function(conn) {

                if (!schema_exists(conn = conn,
                                   schema = "test_schema")) {

                        cli::cli_rule("Create 'test_schema' Schema")

                        create_schema(conn = conn,
                                      schema = "test_schema")

                }
        }


conn <- local_connect(dbname = "pg13_test")
#> Error in rJava::.jcall(jdbcDriver, "Ljava/sql/Connection;", "connect",     as.character(url), p): org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
create_test_schema(conn = conn)
#> Error in h(simpleError(msg, call)): error in evaluating the argument 'conn' in selecting a method for function 'dbGetQuery': object 'conn' not found
write_table(conn = conn,
            schema = "test_schema",
            table_name = "test_table",
            drop_existing = TRUE,
            data = data.frame(A = 1:3, B = letters[1:3]))
#> [2021-06-20 15:26:10]	Dropping test_schema.test_table...
#> Error in check_conn_status(conn = conn): object 'conn' not found

write_table(conn = conn,
            schema = "test_schema",
            table_name = "test_table2",
            drop_existing = TRUE,
            data = data.frame(C = rep(NA, 3), D = c(TRUE, FALSE, FALSE)))
#> [2021-06-20 15:26:10]	Dropping test_schema.test_table2...
#> Error in check_conn_status(conn = conn): object 'conn' not found

write_table(conn = conn,
            schema = "test_schema",
            table_name = "test_table3",
            drop_existing = TRUE,
            data = data.frame(E = c(1.25, 343.31341, 5),
                              G = c(Sys.Date(), Sys.Date()-100, Sys.Date()-1000)))
#> [2021-06-20 15:26:10]	Dropping test_schema.test_table3...
#> Error in check_conn_status(conn = conn): object 'conn' not found

drop_schema(conn = conn,
            schema = "test_schema",
            cascade = TRUE)
#> Error in check_conn_status(conn = conn): object 'conn' not found

dc(conn = conn)
#> [2021-06-20 15:26:10]	Postgres connection was already closed