get_returned_rows() extracts the RETURNING rows produced by
rows_insert(), rows_update(), rows_upsert(), or rows_delete()
if called with the returning argument.
An error is raised if this information is not available.
has_returned_rows() checks if x has stored RETURNING rows produced by
rows_insert(), rows_update(), rows_upsert(), or rows_delete().
get_returned_rows(x)has_returned_rows(x)
A lazy tbl.
For get_returned_rows(), a tibble.
For has_returned_rows(), a scalar logical.