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drop-column (clj)
(source)function
(drop-column col)
Takes one or more column names (use with `alter-table`).
Accepts an `IF EXISTS` flag (keyword or symbol) before
any column names.
(alter-table :foo (drop-column :bar :if-exists :quux))
Examples
honeysql
(ns honey.sql.postgres-test
(:refer-clojure :exclude [update partition-by set])
(:require [clojure.test :refer [deftest is testing]]
;; pull in all the PostgreSQL helpers that the nilenso
;; library provided (as well as the regular HoneySQL ones):
[honey.sql.helpers :as sqlh :refer
[upsert on-conflict do-nothing on-constraint
returning do-update-set
;; not needed because do-update-set can do this directly
#_do-update-set!
alter-table rename-column drop-column
add-column partition-by
;; not needed because insert-into can do this directly
#_insert-into-as
create-table rename-table drop-table
window create-view over with-columns
create-extension drop-extension
select-distinct-on
;; already part of HoneySQL
insert-into values where select
from order-by update set]]
[honey.sql :as sql]))
(deftest alter-table-test
(testing "alter table add column generates the required sql"
(is (= ["ALTER TABLE employees ADD COLUMN address TEXT"]
(-> (alter-table :employees)
(add-column :address :text)
sql/format))))
(testing "alter table drop column generates the required sql"
(is (= ["ALTER TABLE employees DROP COLUMN address"]
(-> (alter-table :employees)
(drop-column :address)
sql/format))))
(testing "alter table rename column generates the requred sql"
(is (= ["ALTER TABLE employees RENAME COLUMN address TO homeaddress"]
(-> (alter-table :employees)
(rename-column :address :homeaddress)
sql/format))))
(testing "alter table rename table generates the required sql"
(is (= ["ALTER TABLE employees RENAME TO managers"]
(-> (alter-table :employees)
(rename-table :managers)
sql/format)))))
honeysql
(ns honey.sql.helpers-test
(:refer-clojure :exclude [filter for group-by partition-by set update])
(:require [clojure.test :refer [deftest is testing]]
[honey.sql :as sql]
[honey.sql.helpers :as h
:refer [add-column add-index alter-table columns create-table create-table-as create-view
create-materialized-view drop-view drop-materialized-view
create-index
bulk-collect-into
cross-join do-update-set drop-column drop-index drop-table
filter from full-join
group-by having insert-into
join-by join lateral left-join limit offset on-conflict
on-duplicate-key-update
order-by over partition-by refresh-materialized-view
rename-column rename-table returning right-join
select select-distinct select-top select-distinct-top
values where window with with-columns
with-data within-group]]))
(deftest issue-293-alter-table
(is (= (sql/format (-> (alter-table :fruit)
(add-column :id :int [:not nil])))
["ALTER TABLE fruit ADD COLUMN id INT NOT NULL"]))
(is (= (sql/format (-> (alter-table :fruit)
(add-column :id :int [:not nil])
(add-column :a1 :int nil)
(add-column :be :text [:not nil])))
["ALTER TABLE fruit ADD COLUMN id INT NOT NULL, ADD COLUMN a1 INT NULL, ADD COLUMN be TEXT NOT NULL"]))
(is (= (sql/format (alter-table :fruit
(add-column :id :int [:not nil])
(drop-column :ident)
(drop-column :if-exists :another)))
["ALTER TABLE fruit ADD COLUMN id INT NOT NULL, DROP COLUMN ident, DROP COLUMN IF EXISTS another"]))
(is (= (sql/format (alter-table :fruit
(drop-column :a :b :if-exists :c :d)
(drop-column :if-exists :e)))
["ALTER TABLE fruit DROP COLUMN a, DROP COLUMN b, DROP COLUMN IF EXISTS c, DROP COLUMN d, DROP COLUMN IF EXISTS e"])))
babashka/babashka
(ns honey.sql.postgres-test
(:refer-clojure :exclude [update partition-by set])
(:require [clojure.test :refer [deftest is testing]]
;; pull in all the PostgreSQL helpers that the nilenso
;; library provided (as well as the regular HoneySQL ones):
[honey.sql.helpers :as sqlh :refer
[upsert on-conflict do-nothing on-constraint
returning do-update-set
;; not needed because do-update-set can do this directly
#_do-update-set!
alter-table rename-column drop-column
add-column partition-by
;; not needed because insert-into can do this directly
#_insert-into-as
create-table rename-table drop-table
window create-view over with-columns
create-extension drop-extension
select-distinct-on
;; already part of HoneySQL
insert-into values where select
from order-by update set]]
[honey.sql :as sql]))
(deftest alter-table-test
(testing "alter table add column generates the required sql"
(is (= ["ALTER TABLE employees ADD COLUMN address TEXT"]
(-> (alter-table :employees)
(add-column :address :text)
sql/format))))
(testing "alter table drop column generates the required sql"
(is (= ["ALTER TABLE employees DROP COLUMN address"]
(-> (alter-table :employees)
(drop-column :address)
sql/format))))
(testing "alter table rename column generates the requred sql"
(is (= ["ALTER TABLE employees RENAME COLUMN address TO homeaddress"]
(-> (alter-table :employees)
(rename-column :address :homeaddress)
sql/format))))
(testing "alter table rename table generates the required sql"
(is (= ["ALTER TABLE employees RENAME TO managers"]
(-> (alter-table :employees)
(rename-table :managers)
sql/format)))))
seancorfield/honeysql
(ns honey.sql.postgres-test
(:refer-clojure :exclude [update partition-by set])
(:require [clojure.test :refer [deftest is testing]]
;; pull in all the PostgreSQL helpers that the nilenso
;; library provided (as well as the regular HoneySQL ones):
[honey.sql.helpers :as sqlh :refer
[upsert on-conflict do-nothing on-constraint
returning do-update-set
;; not needed because do-update-set can do this directly
#_do-update-set!
alter-table rename-column drop-column
add-column partition-by
;; not needed because insert-into can do this directly
#_insert-into-as
create-table rename-table drop-table
window create-view over with-columns
create-extension drop-extension
select-distinct-on
;; already part of HoneySQL
insert-into values where select
from order-by update set]]
[honey.sql :as sql]))
(deftest alter-table-test
(testing "alter table add column generates the required sql"
(is (= ["ALTER TABLE employees ADD COLUMN address TEXT"]
(-> (alter-table :employees)
(add-column :address :text)
sql/format))))
(testing "alter table drop column generates the required sql"
(is (= ["ALTER TABLE employees DROP COLUMN address"]
(-> (alter-table :employees)
(drop-column :address)
sql/format))))
(testing "alter table rename column generates the requred sql"
(is (= ["ALTER TABLE employees RENAME COLUMN address TO homeaddress"]
(-> (alter-table :employees)
(rename-column :address :homeaddress)
sql/format))))
(testing "alter table rename table generates the required sql"
(is (= ["ALTER TABLE employees RENAME TO managers"]
(-> (alter-table :employees)
(rename-table :managers)
sql/format)))))