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|
# print method doesn't change unexpectedly
Code
sql_build(union(lf1, lf2))
Output
<SQL UNION>
X:
<SQL SELECT>
From:
<IDENT> df
Select: *, NULL
Y:
<SQL SELECT>
From:
<IDENT> df
Select: `x`, NULL, `z`
# generated sql doesn't change unexpectedly
Code
union(lf, lf)
Output
<SQL>
(
SELECT *
FROM `df`
)
UNION
(
SELECT *
FROM `df`
)
---
Code
setdiff(lf, lf)
Output
<SQL>
(
SELECT *
FROM `df`
)
EXCEPT
(
SELECT *
FROM `df`
)
---
Code
intersect(lf, lf)
Output
<SQL>
(
SELECT *
FROM `df`
)
INTERSECT
(
SELECT *
FROM `df`
)
---
Code
union(lf, lf, all = TRUE)
Output
<SQL>
(
SELECT *
FROM `df`
)
UNION ALL
(
SELECT *
FROM `df`
)
---
Code
setdiff(lf, lf, all = TRUE)
Output
<SQL>
(
SELECT *
FROM `df`
)
EXCEPT ALL
(
SELECT *
FROM `df`
)
---
Code
intersect(lf, lf, all = TRUE)
Output
<SQL>
(
SELECT *
FROM `df`
)
INTERSECT ALL
(
SELECT *
FROM `df`
)
|
