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Address #332 by improving select docs

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This commit is contained in:
Sean Corfield 2021-07-17 18:59:26 -07:00
parent 13044d7394
commit 3680a1beae
1 changed files with 8 additions and 1 deletions
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9
doc/clause-reference.md
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@ -302,6 +302,10 @@ user=> (sql/format '{select (id, ((* cost 2)), (event status))
["SELECT id, cost * ?, event AS status FROM table" 2]
```
Here, `:select` has a three expressions as its argument. The first is
a simple column name. The second is an expression with no alias, which
is why it is still double-nested. The third is a simple column name and its alias.
With an alias on the expression:
```clojure
@ -310,6 +314,10 @@ user=> (sql/format {:select [:id, [[:* :cost 2] :total], [:event :status]]
["SELECT id, cost * ? AS total, event AS status FROM table" 2]
```
Here, `:select` has a three expressions as its argument. The first is
a simple column name. The second is an expression and its alias. The
third is a simple column name and its alias.
`:select-distinct` works the same way but produces `SELECT DISTINCT`.
HoneySQL does not yet support `SELECT .. INTO ..`
@ -610,7 +618,6 @@ table expression and an alias. The table expression is `[:lateral ..]`
and the alias expression is double-nested so that it is read as a
function call: an invocation of `:raw`.
> Note: the actual formatting of a `:cross-join` clause is currently identical to the formatting of a `:select` clause.
## set (MySQL)