diff --git a/db/migrations/00016_create_stored_procedures.sql b/db/migrations/00016_create_stored_procedures.sql
index 9245b57..776d220 100644
--- a/db/migrations/00016_create_stored_procedures.sql
+++ b/db/migrations/00016_create_stored_procedures.sql
@@ -29,62 +29,6 @@ $$
 language sql;
 -- +goose StatementEnd
 
--- +goose StatementBegin
--- duplicate of eth.header_cids as a separate type: if we use the table directly, dropping the hypertables
--- on downgrade of step 00018 will fail due to the dependency on this type.
-CREATE TYPE header_result AS (
-    block_number bigint,
-    block_hash character varying(66),
-    parent_hash character varying(66),
-    cid text,
-    td numeric,
-    node_ids character varying(128)[],
-    reward numeric,
-    state_root character varying(66),
-    tx_root character varying(66),
-    receipt_root character varying(66),
-    uncles_hash character varying(66),
-    bloom bytea,
-    "timestamp" bigint,
-    coinbase character varying(66),
-    canonical bool
-);
-
-CREATE TYPE child_result AS (
-    has_child BOOLEAN,
-    children header_result[]
-);
-
-CREATE OR REPLACE FUNCTION get_child(hash VARCHAR(66), height BIGINT) RETURNS child_result AS
-$BODY$
-DECLARE
-  child_height INT;
-  temp_child header_result;
-  new_child_result child_result;
-BEGIN
-  child_height = height + 1;
-  -- short circuit if there are no children
-  SELECT exists(SELECT 1
-              FROM eth.header_cids
-              WHERE parent_hash = hash
-                AND block_number = child_height
-                AND canonical = true
-              LIMIT 1)
-  INTO new_child_result.has_child;
-  -- collect all the children for this header
-  IF new_child_result.has_child THEN
-    FOR temp_child IN
-    SELECT * FROM eth.header_cids WHERE parent_hash = hash AND block_number = child_height AND canonical = true
-    LOOP
-      new_child_result.children = array_append(new_child_result.children, temp_child);
-    END LOOP;
-  END IF;
-  RETURN new_child_result;
-END
-$BODY$
-LANGUAGE 'plpgsql';
--- +goose StatementEnd
-
 -- +goose StatementBegin
 CREATE OR REPLACE FUNCTION canonical_header_hash(height BIGINT) RETURNS character varying AS
 $BODY$
@@ -97,5 +41,3 @@ LANGUAGE sql;
 DROP FUNCTION was_state_leaf_removed;
 DROP FUNCTION was_state_leaf_removed_by_number;
 DROP FUNCTION canonical_header_hash;
-DROP FUNCTION get_child;
-DROP TYPE child_result;
diff --git a/schema.sql b/schema.sql
index 5acd2e7..5c924ba 100644
--- a/schema.sql
+++ b/schema.sql
@@ -51,39 +51,6 @@ CREATE SCHEMA eth_meta;
 CREATE SCHEMA ipld;
 
 
---
--- Name: header_result; Type: TYPE; Schema: public; Owner: -
---
-
-CREATE TYPE public.header_result AS (
-	block_number bigint,
-	block_hash character varying(66),
-	parent_hash character varying(66),
-	cid text,
-	td numeric,
-	node_ids character varying(128)[],
-	reward numeric,
-	state_root character varying(66),
-	tx_root character varying(66),
-	receipt_root character varying(66),
-	uncles_hash character varying(66),
-	bloom bytea,
-	"timestamp" bigint,
-	coinbase character varying(66),
-	canonical boolean
-);
-
-
---
--- Name: child_result; Type: TYPE; Schema: public; Owner: -
---
-
-CREATE TYPE public.child_result AS (
-	has_child boolean,
-	children public.header_result[]
-);
-
-
 --
 -- Name: canonical_header_hash(bigint); Type: FUNCTION; Schema: public; Owner: -
 --
@@ -95,40 +62,6 @@ CREATE FUNCTION public.canonical_header_hash(height bigint) RETURNS character va
 $$;
 
 
---
--- Name: get_child(character varying, bigint); Type: FUNCTION; Schema: public; Owner: -
---
-
-CREATE FUNCTION public.get_child(hash character varying, height bigint) RETURNS public.child_result
-    LANGUAGE plpgsql
-    AS $$
-DECLARE
-  child_height INT;
-  temp_child header_result;
-  new_child_result child_result;
-BEGIN
-  child_height = height + 1;
-  -- short circuit if there are no children
-  SELECT exists(SELECT 1
-              FROM eth.header_cids
-              WHERE parent_hash = hash
-                AND block_number = child_height
-                AND canonical = true
-              LIMIT 1)
-  INTO new_child_result.has_child;
-  -- collect all the children for this header
-  IF new_child_result.has_child THEN
-    FOR temp_child IN
-    SELECT * FROM eth.header_cids WHERE parent_hash = hash AND block_number = child_height AND canonical = true
-    LOOP
-      new_child_result.children = array_append(new_child_result.children, temp_child);
-    END LOOP;
-  END IF;
-  RETURN new_child_result;
-END
-$$;
-
-
 --
 -- Name: get_storage_at_by_hash(text, text, text); Type: FUNCTION; Schema: public; Owner: -
 --