Nothing
Code
(out <- lf %>% head(2) %>% distinct(x, y))
Output
<SQL>
SELECT DISTINCT `q01`.*
FROM (
SELECT `df`.*
FROM `df`
LIMIT 2
) AS `q01`
Code
lf %>% window_order(desc(y)) %>% distinct(x, .keep_all = TRUE)
Output
<SQL>
SELECT `x`, `y`
FROM (
SELECT
`df`.*,
ROW_NUMBER() OVER (PARTITION BY `x` ORDER BY `y` DESC) AS `col01`
FROM `df`
) AS `q01`
WHERE (`col01` = 1)
Code
lf %>% distinct(x, .keep_all = TRUE)
Output
<SQL>
SELECT `x`, `y`
FROM (
SELECT `df`.*, ROW_NUMBER() OVER (PARTITION BY `x` ORDER BY `x`) AS `col01`
FROM `df`
) AS `q01`
WHERE (`col01` = 1)
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