Nothing
test_NULL_NA_parse <- function() {
td <- mk_td("dr", c("purchase_date", "product"))
db <- rquery::rquery_default_db_info()
ops <- td %.>%
extend(., partitionby = "product", orderby = "purchase_date",
z = LAG(purchase_date, 1, NULL))
ops_s <- format(ops)
sql_s <- to_sql(ops, db)
expect_equal(length(grep("NULL", ops_s, fixed = TRUE)), 1)
expect_equal(length(grep("NULL", sql_s, fixed = TRUE)), 1)
expect_equal(length(grep("NA", ops_s, fixed = TRUE)), 0)
expect_equal(length(grep("NA", sql_s, fixed = TRUE)), 0)
ops <- td %.>%
extend(., partitionby = "product", orderby = "purchase_date",
z = LAG(purchase_date, 1, NA))
ops_s <- format(ops)
sql_s <- to_sql(ops, db)
expect_equal(length(grep("NULL", ops_s, fixed = TRUE)), 0)
expect_equal(length(grep("NULL", sql_s, fixed = TRUE)), 0)
expect_equal(length(grep("NA", ops_s, fixed = TRUE)), 1)
expect_equal(length(grep("NA", sql_s, fixed = TRUE)), 1)
invisible(NULL)
}
test_NULL_NA_parse()
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