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Add function to check for state node removal. #19

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merged 3 commits into from
Sep 27, 2021
Merged

Add function to check for state node removal. #19

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b3799f3
Add function to check for state node removal.
arijitAD Sep 24, 2021
d66bef1
Update the schema.sql.
arijitAD Sep 24, 2021
d9e80c3
Update the function query.
arijitAD Sep 27, 2021
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20 changes: 20 additions & 0 deletions db/migrations/00028_add_state_leaf_remove_function.sql
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Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
-- +goose Up
-- +goose StatementBegin
-- returns if a state leaf node was removed within the provided block number
CREATE OR REPLACE FUNCTION was_state_leaf_removed(key character varying, hash character varying)
RETURNS boolean AS $$
SELECT state_cids.node_type = 3
FROM eth.state_cids
INNER JOIN eth.header_cids ON (state_cids.header_id = header_cids.id)
WHERE state_leaf_key = key
AND block_number <= (SELECT block_number
FROM eth.header_cids
WHERE block_hash = hash)
ORDER BY block_number DESC LIMIT 1;
$$
language sql;
-- +goose StatementEnd


-- +goose Down
DROP FUNCTION was_state_leaf_removed;
18 changes: 18 additions & 0 deletions db/schema.sql
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Expand Up @@ -232,6 +232,24 @@ END
$$;


--
-- Name: was_state_leaf_removed(character varying, character varying); Type: FUNCTION; Schema: public; Owner: -
--

CREATE FUNCTION public.was_state_leaf_removed(key character varying, hash character varying) RETURNS boolean
LANGUAGE sql
AS $$
SELECT state_cids.node_type = 3
FROM eth.state_cids
INNER JOIN eth.header_cids ON (state_cids.header_id = header_cids.id)
WHERE state_leaf_key = key
AND block_number <= (SELECT block_number
FROM eth.header_cids
WHERE block_hash = hash)
ORDER BY block_number DESC LIMIT 1;
$$;


--
-- Name: was_state_removed(bytea, bigint, character varying); Type: FUNCTION; Schema: public; Owner: -
--
Expand Down