test: tests on various docs pages for supabase docs

nix/tests/expected/docs-array-test.out

@@ -0,0 +1,19 @@
+-- testing sql found in https://supabase.com/docs/guides/database/arrays
+create table arraytest (
+  id integer not null,
+  textarray text array
+);
+INSERT INTO arraytest (id, textarray) VALUES (1, ARRAY['Harry', 'Larry', 'Moe']);;
+select * from arraytest;
+ id |     textarray     
+----+-------------------
+  1 | {Harry,Larry,Moe}
+(1 row)
+
+SELECT textarray[1], array_length(textarray, 1) FROM arraytest;
+ textarray | array_length 
+-----------+--------------
+ Harry     |            3
+(1 row)
+
+drop table arraytest cascade;

nix/tests/expected/docs-cascades-deletes.out

@@ -0,0 +1,373 @@
+-- testing sql found in https://supabase.com/docs/guides/database/postgres/cascades-deletes
+-- all of the errors produced by this file are expected
+create table grandparent (
+  id serial primary key,
+  name text
+);
+create table parent (
+  id serial primary key,
+  name text,
+  parent_id integer references grandparent (id)
+    on delete cascade
+);
+create table child (
+  id serial primary key,
+  name text,
+  father integer references parent (id)
+    on delete restrict
+);
+insert into grandparent
+  (id, name)
+values
+  (1, 'Elizabeth');
+insert into parent
+  (id, name, parent_id)
+values
+  (1, 'Charles', 1);
+insert into parent
+  (id, name, parent_id)
+values
+  (2, 'Diana', 1);
+insert into child
+  (id, name, father)
+values
+  (1, 'William', 1);
+select count(*) from grandparent;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from parent;
+ count 
+-------
+     2
+(1 row)
+
+select count(*) from child;
+ count 
+-------
+     1
+(1 row)
+
+delete from grandparent;
+ERROR:  update or delete on table "parent" violates foreign key constraint "child_father_fkey" on table "child"
+DETAIL:  Key (id)=(1) is still referenced from table "child".
+select count(*) from grandparent;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from parent;
+ count 
+-------
+     2
+(1 row)
+
+select count(*) from child;
+ count 
+-------
+     1
+(1 row)
+
+insert into grandparent
+  (id, name)
+values
+  (1, 'Elizabeth');
+ERROR:  duplicate key value violates unique constraint "grandparent_pkey"
+DETAIL:  Key (id)=(1) already exists.
+insert into parent
+  (id, name, parent_id)
+values
+  (1, 'Charles', 1);
+ERROR:  duplicate key value violates unique constraint "parent_pkey"
+DETAIL:  Key (id)=(1) already exists.
+insert into parent
+  (id, name, parent_id)
+values
+  (2, 'Diana', 1);
+ERROR:  duplicate key value violates unique constraint "parent_pkey"
+DETAIL:  Key (id)=(2) already exists.
+insert into child
+  (id, name, father)
+values
+  (1, 'William', 1);
+ERROR:  duplicate key value violates unique constraint "child_pkey"
+DETAIL:  Key (id)=(1) already exists.
+alter table child
+drop constraint child_father_fkey;
+alter table child
+add constraint child_father_fkey foreign key (father) references parent (id)
+  on delete no action;
+delete from grandparent;
+ERROR:  update or delete on table "parent" violates foreign key constraint "child_father_fkey" on table "child"
+DETAIL:  Key (id)=(1) is still referenced from table "child".
+select count(*) from grandparent;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from parent;
+ count 
+-------
+     2
+(1 row)
+
+select count(*) from child;
+ count 
+-------
+     1
+(1 row)
+
+insert into grandparent
+  (id, name)
+values
+  (1, 'Elizabeth');
+ERROR:  duplicate key value violates unique constraint "grandparent_pkey"
+DETAIL:  Key (id)=(1) already exists.
+insert into parent
+  (id, name, parent_id)
+values
+  (1, 'Charles', 1);
+ERROR:  duplicate key value violates unique constraint "parent_pkey"
+DETAIL:  Key (id)=(1) already exists.
+insert into parent
+  (id, name, parent_id)
+values
+  (2, 'Diana', 1);
+ERROR:  duplicate key value violates unique constraint "parent_pkey"
+DETAIL:  Key (id)=(2) already exists.
+insert into child
+  (id, name, father)
+values
+  (1, 'William', 1);
+ERROR:  duplicate key value violates unique constraint "child_pkey"
+DETAIL:  Key (id)=(1) already exists.
+alter table child
+drop constraint child_father_fkey;
+alter table child
+add constraint child_father_fkey foreign key (father) references parent (id)
+  on delete no action initially deferred;
+delete from grandparent;
+ERROR:  update or delete on table "parent" violates foreign key constraint "child_father_fkey" on table "child"
+DETAIL:  Key (id)=(1) is still referenced from table "child".
+select count(*) from grandparent;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from parent;
+ count 
+-------
+     2
+(1 row)
+
+select count(*) from child;
+ count 
+-------
+     1
+(1 row)
+
+insert into grandparent
+  (id, name)
+values
+  (1, 'Elizabeth');
+ERROR:  duplicate key value violates unique constraint "grandparent_pkey"
+DETAIL:  Key (id)=(1) already exists.
+insert into parent
+  (id, name, parent_id)
+values
+  (1, 'Charles', 1);
+ERROR:  duplicate key value violates unique constraint "parent_pkey"
+DETAIL:  Key (id)=(1) already exists.
+insert into parent
+  (id, name, parent_id)
+values
+  (2, 'Diana', 1);
+ERROR:  duplicate key value violates unique constraint "parent_pkey"
+DETAIL:  Key (id)=(2) already exists.
+insert into child
+  (id, name, father)
+values
+  (1, 'William', 1);
+ERROR:  duplicate key value violates unique constraint "child_pkey"
+DETAIL:  Key (id)=(1) already exists.
+alter table child
+add column mother integer references parent (id)
+  on delete cascade;
+update child
+set mother = 2
+where id = 1;
+delete from grandparent;
+select count(*) from grandparent;
+ count 
+-------
+     0
+(1 row)
+
+select count(*) from parent;
+ count 
+-------
+     0
+(1 row)
+
+select count(*) from child;
+ count 
+-------
+     0
+(1 row)
+
+create table test_cascade (
+  id serial primary key,
+  name text
+);
+create table test_cascade_child (
+  id serial primary key,
+  parent_id integer references test_cascade (id) on delete cascade,
+  name text
+);
+insert into test_cascade (name) values ('Parent');
+insert into test_cascade_child (parent_id, name) values (1, 'Child');
+delete from test_cascade;
+select count(*) from test_cascade;
+ count 
+-------
+     0
+(1 row)
+
+select count(*) from test_cascade_child;
+ count 
+-------
+     0
+(1 row)
+
+create table test_restrict (
+  id serial primary key,
+  name text
+);
+create table test_restrict_child (
+  id serial primary key,
+  parent_id integer references test_restrict (id) on delete restrict,
+  name text
+);
+insert into test_restrict (name) values ('Parent');
+insert into test_restrict_child (parent_id, name) values (1, 'Child');
+delete from test_restrict;
+ERROR:  update or delete on table "test_restrict" violates foreign key constraint "test_restrict_child_parent_id_fkey" on table "test_restrict_child"
+DETAIL:  Key (id)=(1) is still referenced from table "test_restrict_child".
+select count(*) from test_restrict;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from test_restrict_child;
+ count 
+-------
+     1
+(1 row)
+
+create table test_set_null (
+  id serial primary key,
+  name text
+);
+create table test_set_null_child (
+  id serial primary key,
+  parent_id integer references test_set_null (id) on delete set null,
+  name text
+);
+insert into test_set_null (name) values ('Parent');
+insert into test_set_null_child (parent_id, name) values (1, 'Child');
+delete from test_set_null;
+select count(*) from test_set_null;
+ count 
+-------
+     0
+(1 row)
+
+select count(*) from test_set_null_child;
+ count 
+-------
+     1
+(1 row)
+
+select parent_id from test_set_null_child;
+ parent_id 
+-----------
+
+(1 row)
+
+create table test_set_default (
+  id serial primary key,
+  name text
+);
+create table test_set_default_child (
+  id serial primary key,
+  parent_id integer default 999 references test_set_default (id) on delete set default,
+  name text
+);
+insert into test_set_default (name) values ('Parent');
+insert into test_set_default_child (parent_id, name) values (1, 'Child');
+delete from test_set_default;
+ERROR:  insert or update on table "test_set_default_child" violates foreign key constraint "test_set_default_child_parent_id_fkey"
+DETAIL:  Key (parent_id)=(999) is not present in table "test_set_default".
+select count(*) from test_set_default;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from test_set_default_child;
+ count 
+-------
+     1
+(1 row)
+
+select parent_id from test_set_default_child;
+ parent_id 
+-----------
+         1
+(1 row)
+
+create table test_no_action (
+  id serial primary key,
+  name text
+);
+create table test_no_action_child (
+  id serial primary key,
+  parent_id integer references test_no_action (id) on delete no action,
+  name text
+);
+insert into test_no_action (name) values ('Parent');
+insert into test_no_action_child (parent_id, name) values (1, 'Child');
+delete from test_no_action;
+ERROR:  update or delete on table "test_no_action" violates foreign key constraint "test_no_action_child_parent_id_fkey" on table "test_no_action_child"
+DETAIL:  Key (id)=(1) is still referenced from table "test_no_action_child".
+select count(*) from test_no_action;
+ count 
+-------
+     1
+(1 row)
+
+select count(*) from test_no_action_child;
+ count 
+-------
+     1
+(1 row)
+
+drop table if exists test_cascade_child;
+drop table if exists test_cascade;
+drop table if exists test_restrict_child;
+drop table if exists test_restrict;
+drop table if exists test_set_null_child;
+drop table if exists test_set_null;
+drop table if exists test_set_default_child;
+drop table if exists test_set_default;
+drop table if exists test_no_action_child;
+drop table if exists test_no_action;
+drop table if exists child;
+drop table if exists parent;
+drop table if exists grandparent;