Migration helper for creating the ex_data_sketch_sketches table.

Use mix ex_data_sketch.gen.migration to generate a migration file that calls up_commands/0 and down_commands/0 from this module.

Table Structure

The migration creates a table named ex_data_sketch_sketches with:

• id -- auto-incrementing primary key
• key -- unique string key for the sketch (with unique index)
• sketch_type -- the sketch family name (e.g., "hll", "cms")
• data -- binary column storing the EXSK v2 frame
• inserted_at -- timestamp
• updated_at -- timestamp

Usage in Migrations

defmodule MyApp.Repo.Migrations.AddExDataSketchSketches do
  use Ecto.Migration

  def up do
    Enum.each(ExDataSketch.Storage.Ecto.Migration.up_commands(), &execute/1)
  end

  def down do
    Enum.each(ExDataSketch.Storage.Ecto.Migration.down_commands(), &execute/1)
  end
end