psqldef: parser fails with EXCLUDE constraint

[ktogo]

Platform

• OS: Confirmed on MacOS
• RDBMS: PostgreSQL
• Version: Confirmed on v0.16.13

--export output

CREATE TABLE "public"."exclude_example" (
    "id" serial NOT NULL
);

CREATE INDEX exclude_example_id_excl ON public.exclude_example USING btree (id);

Input SQL

CREATE TABLE exclude_example (
  id SERIAL NOT NULL,
  EXCLUDE (id WITH =)
);

Current output

found syntax error when parsing DDL "CREATE TABLE exclude_example (
  id SERIAL NOT NULL,
  EXCLUDE (id WITH =)
)": syntax error at position 65

Expected output

• Parser should not fail
• Exported SQL should be equal to the input SQL