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ecto_psql_extras

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Ecto PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more.

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ecto_psql_extras lib queries total_index_size.ex
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lib/queries/total_index_size.ex 

defmodule EctoPSQLExtras.TotalIndexSize do

  @behaviour EctoPSQLExtras



  def info do

    %{

      title: "Total size of all indexes in MB",

      limit: 1,

      columns: [

        %{name: :size, type: :bytes}

      ]

    }

  end



  def query do

    """

    /* Total size of all indexes in MB */



    SELECT sum(c.relpages::bigint*8192)::bigint AS size

    FROM pg_class c

    LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)

    WHERE n.nspname NOT IN ('pg_catalog', 'information_schema')

    AND n.nspname !~ '^pg_toast'

    AND c.relkind='i';

    """

  end

end