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SQL provides state-of-the-art, high-performance SQL integration for Elixir, built to handle extreme concurrency with unmatched expressiveness and ergonomic query composition. Write safe, composable, parameterized queries directly, without translating to Ecto or any ORM.

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sql lib adapters postgres.ex
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lib/adapters/postgres.ex 

# SPDX-License-Identifier: Apache-2.0

# SPDX-FileCopyrightText: 2025 DBVisor



defmodule SQL.Adapters.Postgres do

  @moduledoc """

    A SQL adapter for [PostgreSQL](https://www.postgresql.org).

  """

  @moduledoc since: "0.2.0"



  use SQL.Token



  @doc false

  def token_to_string(value, mod \\ __MODULE__)

  def token_to_string({:not, _, [left, {:in, _, [{:binding, _, _} = right]}]}, mod), do: "#{mod.token_to_string(left)} != ANY(#{mod.token_to_string(right)})"

  def token_to_string({:in, _, [left, {:binding, _, _} = right]}, mod), do: "#{mod.token_to_string(left)} = ANY(#{mod.token_to_string(right)})"

  def token_to_string({:binding, _, [idx]}, _mod) when is_integer(idx), do: "$#{idx}"

  def token_to_string(token, mod), do: SQL.Adapters.ANSI.token_to_string(token, mod)

end