elixirdev
How to execute SQL SELECT query in migrations
I am using Triplex package for multi-tenants. when i create a tenant. its execute all migrations. after table creation when i execute seed migrations. it gives me error "{:error, "ERROR 42P01 (undefined_table) relation \"t2.tenants\" does not exist\n\n query: (SELECT MAX(id) from \"t2.tenants\")"} on select query. if remove select query, insert queries execute successfully.
defmodule TudoChat.Repo.Migrations.SeedTableTenants do
use Ecto.Migration
def up do
execute("INSERT INTO t2.tenants (\"id\", \"inserted_at\", \"name\", \"status\", \"updated_at\") values ('1', '2019-07-08 10:37:28', 'tudo_', 'active', '2019-07-08 10:37:30')")
execute("INSERT INTO t2.tenants (\"id\", \"inserted_at\", \"name\", \"status\", \"updated_at\") values ('2', '2019-07-08 10:38:19', 'test_', 'active', '2019-07-08 10:38:22')")
execute("(SELECT MAX(id) from \"t2.tenants\")")
end
def down do
end
end
please help me how to execute select query?
Marked As Solved
jola
I’ll respond here too, on top of slack. Also I’m assuming postgres.
@kip is correct, "t2.tenants" is not the same as t2.tenants. However if you really want to quote it, you have to quote the schema and the table separately, "t2"."tenants".
You can test it easily in psql.
create table asd ();
select * from asd;
select * from "asd";
select * from public.asd;
select * from "public"."asd";
select * from "public.asd";
CREATE TABLE
SELECT 0
SELECT 0
SELECT 0
SELECT 0
ERROR: relation "public.asd" does not exist
LINE 5: select * from "public.asd";
Also Liked
kip
I think the issue is that you are quoting t2.tenants in the SELECT statement. I think it should be:
execute("SELECT MAX(id) from t2.tenants")
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