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#' @include backend-postgres.R
NULL
# nocov start
# Use dbplyr edition 1 for custom method dispatch on RPostgreSQL connections
#' @export
dbplyr_edition.PostgreSQLConnection <- function(con) {
1L
}
#' @export
db_write_table.PostgreSQLConnection <- function(con,
table,
types,
values,
temporary = TRUE,
...) {
if (!isFALSE(temporary)) {
cli_abort(c(
"RPostgreSQL backend does not support creation of temporary tables",
i = "Either set {.code temporary = FALSE} or switch to {.pkg RPostgres}"
))
}
# RPostgreSQL doesn't handle `Id()` or `SQL()` correctly, so we can only pass
# the bare table name
dbWriteTable(
con,
name = table_path_name(table, con),
value = values,
field.types = types,
...,
row.names = FALSE
)
table
}
#' @export
db_query_fields.PostgreSQLConnection <- function(con, sql, ...) {
sql <- sql_subquery(con, sql)
fields <- glue_sql2(con, "SELECT * FROM {.from sql} WHERE 0=1")
qry <- dbSendQuery(con, fields)
on.exit(dbClearResult(qry))
dbGetInfo(qry)$fieldDescription[[1]]$name
}
#' @export
db_connection_describe.PostgreSQLConnection <- db_connection_describe.PqConnection
#' @export
sql_translation.PostgreSQLConnection <- sql_translation.PqConnection
#' @export
sql_expr_matches.PostgreSQLConnection <- sql_expr_matches.PqConnection
#' @export
sql_query_explain.PostgreSQLConnection <- sql_query_explain.PqConnection
#' @export
supports_window_clause.PostgreSQLConnection <- function(con) {
TRUE
}
#' @export
sql_query_insert.PostgreSQLConnection <- sql_query_insert.PostgreSQL
#' @export
sql_query_upsert.PostgreSQLConnection <- sql_query_upsert.PostgreSQL
# nocov end
|
