ExDataSketch.Storage.Ecto.Schema (ExDataSketch v0.9.0)

Ecto schema for the ex_data_sketch_sketches table.

This schema maps the persistence table used by ExDataSketch.Storage.Ecto. The table stores serialized EXSK v2 binary frames with the following columns:

id -- auto-incrementing primary key
key -- unique key for the sketch (string)
sketch_type -- the sketch family name (e.g., "hll", "cms")
data -- the serialized EXSK v2 binary frame
inserted_at -- timestamp of insertion
updated_at -- timestamp of last update

Usage

This module is used internally by ExDataSketch.Storage.Ecto. You should not need to interact with it directly. To create the table, use the migration generator:

mix ex_data_sketch.gen.migration --repo MyApp.Repo

Summary

Types

t()

Functions

changeset(schema, attrs)

Creates a changeset for a sketch record.

Types

t()

@type t() :: %ExDataSketch.Storage.Ecto.Schema{
  __meta__: term(),
  data: binary() | nil,
  id: integer() | nil,
  inserted_at: NaiveDateTime.t() | nil,
  key: String.t() | nil,
  sketch_type: String.t() | nil,
  updated_at: NaiveDateTime.t() | nil
}

Functions

changeset(schema, attrs)

@spec changeset(t(), map()) :: Ecto.Changeset.t()

Creates a changeset for a sketch record.

Arguments

schema -- an existing schema struct or %Schema{}.
attrs -- a map of attributes.

Returns

An Ecto.Changeset.