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Split alters rather than work with indexes
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defmodule Pleroma.Repo.Migrations.CaseInsensivtivity do
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use Ecto.Migration
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# Two-steps alters are intentional.
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# When alter of 2 columns is done in a single operation,
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# inconsistent failures happen because of index on `email` column.
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def up do
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execute("create extension if not exists citext")
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drop_if_exists(index(:users, [:email]))
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alter table(:users) do
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modify(:email, :citext)
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modify(:nickname, :citext)
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end
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create_if_not_exists(index(:users, [:email]))
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alter table(:users) do
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modify(:nickname, :citext)
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end
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end
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def down do
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alter table(:users) do
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modify(:email, :string)
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end
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alter table(:users) do
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modify(:nickname, :string)
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end
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