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document values row (docs also test)

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Signed-off-by: Sean Corfield <sean@corfield.org>
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Sean Corfield 2024-09-28 18:32:09 -07:00
parent 7c0e25f253
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15
doc/clause-reference.md
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@ -1305,6 +1305,21 @@ In addition, all of the rows are padded to the same length by adding `nil`
values if needed (since `:values` does not know how or if column
names are being used in this case).
### values row (MySQL)
MySQL supports `VALUES` as a table expression in multiple
contexts, and it uses "row constructors" to represent the
rows of values.
HoneySQL supports this by using the keyword `:row` (or
symbol `'row`) as the first element of a sequence of values.
```clojure
user=> (sql/format {:values [:row [1 2] [3 4]]})
["VALUES ROW(?, ?), ROW(?, ?)" 1 2 3 4]
```
### values examples
```clojure

4
src/honey/sql.cljc
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@ -2370,6 +2370,10 @@
(format {:select [:a [:b :c] [[:d :e]] [[:f :g] :h]]})
(format {:select [[[:d :e]] :a [:b :c]]})
(format {:values [:row [1 2] [3 4]]})
(format {:with [[[:stuff {:columns [:id :name]}]
{:values [:row [1 "Sean"] [2 "Jay"]]}]]
:select [:id :name]
:from [:stuff]})
(format-on-expr :where [:= :id 1])
(format-dsl {:select [:*] :from [:table] :where [:= :id 1]})
(format {:select [:t.*] :from [[:table :t]] :where [:= :id 1]} {})