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update uml

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i-norden 2023-09-20 12:14:16 -05:00
parent 29c5d04159
commit 402d2790e0
20 changed files with 541 additions and 122 deletions
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5
Makefile
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@ -74,6 +74,11 @@ migrate: $(GOOSE) checkdbvars
$(GOOSE) -dir db/migrations postgres "$(CONNECT_STRING)" up $(GOOSE) -dir db/migrations postgres "$(CONNECT_STRING)" up
pg_dump -O -s $(CONNECT_STRING) > schema.sql pg_dump -O -s $(CONNECT_STRING) > schema.sql
## Apply all the migrations used to generate a UML diagram (containing FKs)
.PHONY: migrate_for_uml
migrate_for_uml: $(GOOSE) checkdbvars
$(GOOSE) -dir db/migrations/uml_support postgres "$(CONNECT_STRING)" up
## Apply migrations to be ran before a batch processing ## Apply migrations to be ran before a batch processing
.PHONY: migrate_pre_batch_set .PHONY: migrate_pre_batch_set
migrate_pre_batch_set: $(GOOSE) checkdbvars migrate_pre_batch_set: $(GOOSE) checkdbvars

13
db/migrations/uml_support/00001_create_ipfs_blocks_table.sql Normal file
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@ -0,0 +1,13 @@
-- +goose Up
CREATE SCHEMA ipld;
CREATE TABLE IF NOT EXISTS ipld.blocks (
block_number BIGINT NOT NULL,
key TEXT NOT NULL,
data BYTEA NOT NULL,
PRIMARY KEY (key, block_number)
);
-- +goose Down
DROP TABLE ipld.blocks;
DROP SCHEMA ipld;

11
db/migrations/uml_support/00002_create_nodes_table.sql Normal file
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@ -0,0 +1,11 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS nodes (
genesis_block VARCHAR(66),
network_id VARCHAR,
node_id VARCHAR(128) PRIMARY KEY,
client_name VARCHAR,
chain_id INTEGER DEFAULT 1
);
-- +goose Down
DROP TABLE nodes;

5
db/migrations/uml_support/00003_create_eth_schema.sql Normal file
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@ -0,0 +1,5 @@
-- +goose Up
CREATE SCHEMA eth;
-- +goose Down
DROP SCHEMA eth;

23
db/migrations/uml_support/00004_create_eth_header_cids_table.sql Normal file
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@ -0,0 +1,23 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.header_cids (
block_number BIGINT NOT NULL,
block_hash VARCHAR(66) NOT NULL,
parent_hash VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
td NUMERIC NOT NULL,
node_ids VARCHAR(128)[] NOT NULL,
reward NUMERIC NOT NULL,
state_root VARCHAR(66) NOT NULL,
tx_root VARCHAR(66) NOT NULL,
receipt_root VARCHAR(66) NOT NULL,
uncles_hash VARCHAR(66) NOT NULL,
bloom BYTEA NOT NULL,
timestamp BIGINT NOT NULL,
coinbase VARCHAR(66) NOT NULL,
canonical BOOLEAN NOT NULL DEFAULT TRUE,
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
PRIMARY KEY (block_hash, block_number)
);
-- +goose Down
DROP TABLE eth.header_cids;

16
db/migrations/uml_support/00005_create_eth_uncle_cids_table.sql Normal file
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@ -0,0 +1,16 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.uncle_cids (
block_number BIGINT NOT NULL,
block_hash VARCHAR(66) NOT NULL,
header_id VARCHAR(66) NOT NULL,
parent_hash VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
reward NUMERIC NOT NULL,
index INT NOT NULL,
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
FOREIGN KEY (header_id, block_number) REFERENCES eth.header_cids (block_hash, block_number),
PRIMARY KEY (block_hash, block_number)
);
-- +goose Down
DROP TABLE eth.uncle_cids;

18
db/migrations/uml_support/00006_create_eth_transaction_cids_table.sql Normal file
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@ -0,0 +1,18 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.transaction_cids (
block_number BIGINT NOT NULL,
header_id VARCHAR(66) NOT NULL,
tx_hash VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
dst VARCHAR(66),
src VARCHAR(66) NOT NULL,
index INTEGER NOT NULL,
tx_type INTEGER,
value NUMERIC,
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
FOREIGN KEY (header_id, block_number) REFERENCES eth.header_cids (block_hash, block_number),
PRIMARY KEY (tx_hash, header_id, block_number)
);
-- +goose Down
DROP TABLE eth.transaction_cids;

16
db/migrations/uml_support/00007_create_eth_receipt_cids_table.sql Normal file
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@ -0,0 +1,16 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.receipt_cids (
block_number BIGINT NOT NULL,
header_id VARCHAR(66) NOT NULL,
tx_id VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
contract VARCHAR(66),
post_state VARCHAR(66),
post_status SMALLINT,
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
FOREIGN KEY (header_id, block_number) REFERENCES eth.header_cids (block_hash, block_number),
PRIMARY KEY (tx_id, header_id, block_number)
);
-- +goose Down
DROP TABLE eth.receipt_cids;

19
db/migrations/uml_support/00008_create_eth_state_cids_table.sql Normal file
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@ -0,0 +1,19 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.state_cids (
block_number BIGINT NOT NULL,
header_id VARCHAR(66) NOT NULL,
state_leaf_key VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
diff BOOLEAN NOT NULL DEFAULT FALSE,
balance NUMERIC, -- NULL if "removed"
nonce BIGINT, -- NULL if "removed"
code_hash VARCHAR(66), -- NULL if "removed"
storage_root VARCHAR(66), -- NULL if "removed"
removed BOOLEAN NOT NULL,
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
FOREIGN KEY (header_id, block_number) REFERENCES eth.header_cids (block_hash, block_number),
PRIMARY KEY (state_leaf_key, header_id, block_number)
);
-- +goose Down
DROP TABLE eth.state_cids;

17
db/migrations/uml_support/00009_create_eth_storage_cids_table.sql Normal file
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@ -0,0 +1,17 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.storage_cids (
block_number BIGINT NOT NULL,
header_id VARCHAR(66) NOT NULL,
state_leaf_key VARCHAR(66) NOT NULL,
storage_leaf_key VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
diff BOOLEAN NOT NULL DEFAULT FALSE,
val BYTEA, -- NULL if "removed"
removed BOOLEAN NOT NULL,
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
FOREIGN KEY (state_leaf_key, header_id, block_number) REFERENCES eth.state_cids (state_leaf_key, header_id, block_number),
PRIMARY KEY (storage_leaf_key, state_leaf_key, header_id, block_number)
);
-- +goose Down
DROP TABLE eth.storage_cids;

20
db/migrations/uml_support/00010_create_eth_log_cids_table.sql Normal file
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@ -0,0 +1,20 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS eth.log_cids (
block_number BIGINT NOT NULL,
header_id VARCHAR(66) NOT NULL,
cid TEXT NOT NULL,
rct_id VARCHAR(66) NOT NULL,
address VARCHAR(66) NOT NULL,
index INTEGER NOT NULL,
topic0 VARCHAR(66),
topic1 VARCHAR(66),
topic2 VARCHAR(66),
topic3 VARCHAR(66),
FOREIGN KEY (cid, block_number) REFERENCES ipld.blocks (key, block_number),
FOREIGN KEY (rct_id, header_id, block_number) REFERENCES eth.receipt_cids (tx_id, header_id, block_number),
PRIMARY KEY (rct_id, index, header_id, block_number)
);
-- +goose Down
-- log indexes
DROP TABLE eth.log_cids;

14
db/migrations/uml_support/00011_create_postgraphile_comments.sql Normal file
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@ -0,0 +1,14 @@
-- +goose Up
COMMENT ON TABLE public.nodes IS E'@name NodeInfo';
COMMENT ON TABLE eth.transaction_cids IS E'@name EthTransactionCids';
COMMENT ON TABLE eth.header_cids IS E'@name EthHeaderCids';
COMMENT ON COLUMN public.nodes.node_id IS E'@name ChainNodeID';
COMMENT ON COLUMN eth.header_cids.node_ids IS E'@name EthNodeIDs';
-- +goose Down
COMMENT ON TABLE public.nodes IS NULL;
COMMENT ON TABLE eth.transaction_cids IS NULL;
COMMENT ON TABLE eth.header_cids IS NULL;
COMMENT ON COLUMN public.nodes.node_id IS NULL;
COMMENT ON COLUMN eth.header_cids.node_ids IS NULL;

101
db/migrations/uml_support/00012_create_cid_indexes.sql Normal file
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@ -0,0 +1,101 @@
-- +goose Up
-- header indexes
CREATE INDEX header_block_number_index ON eth.header_cids USING btree (block_number);
CREATE UNIQUE INDEX header_cid_block_number_index ON eth.header_cids USING btree (cid, block_number);
CREATE INDEX state_root_index ON eth.header_cids USING btree (state_root);
CREATE INDEX timestamp_index ON eth.header_cids USING btree (timestamp);
-- uncle indexes
CREATE INDEX uncle_block_number_index ON eth.uncle_cids USING btree (block_number);
CREATE UNIQUE INDEX uncle_cid_block_number_index ON eth.uncle_cids USING btree (cid, block_number, index);
CREATE INDEX uncle_header_id_index ON eth.uncle_cids USING btree (header_id);
-- transaction indexes
CREATE INDEX tx_block_number_index ON eth.transaction_cids USING btree (block_number);
CREATE INDEX tx_header_id_index ON eth.transaction_cids USING btree (header_id);
CREATE INDEX tx_cid_block_number_index ON eth.transaction_cids USING btree (cid, block_number);
CREATE INDEX tx_dst_index ON eth.transaction_cids USING btree (dst);
CREATE INDEX tx_src_index ON eth.transaction_cids USING btree (src);
-- receipt indexes
CREATE INDEX rct_block_number_index ON eth.receipt_cids USING btree (block_number);
CREATE INDEX rct_header_id_index ON eth.receipt_cids USING btree (header_id);
CREATE INDEX rct_cid_block_number_index ON eth.receipt_cids USING btree (cid, block_number);
CREATE INDEX rct_contract_index ON eth.receipt_cids USING btree (contract);
-- state node indexes
CREATE INDEX state_block_number_index ON eth.state_cids USING btree (block_number);
CREATE INDEX state_cid_block_number_index ON eth.state_cids USING btree (cid, block_number);
CREATE INDEX state_header_id_index ON eth.state_cids USING btree (header_id);
CREATE INDEX state_removed_index ON eth.state_cids USING btree (removed);
CREATE INDEX state_code_hash_index ON eth.state_cids USING btree (code_hash); -- could be useful for e.g. selecting all the state accounts with the same contract bytecode deployed
CREATE INDEX state_leaf_key_block_number_index ON eth.state_cids(state_leaf_key, block_number DESC);
-- storage node indexes
CREATE INDEX storage_block_number_index ON eth.storage_cids USING btree (block_number);
CREATE INDEX storage_state_leaf_key_index ON eth.storage_cids USING btree (state_leaf_key);
CREATE INDEX storage_cid_block_number_index ON eth.storage_cids USING btree (cid, block_number);
CREATE INDEX storage_header_id_index ON eth.storage_cids USING btree (header_id);
CREATE INDEX storage_removed_index ON eth.storage_cids USING btree (removed);
CREATE INDEX storage_leaf_key_block_number_index ON eth.storage_cids(storage_leaf_key, block_number DESC);
-- log indexes
CREATE INDEX log_block_number_index ON eth.log_cids USING btree (block_number);
CREATE INDEX log_header_id_index ON eth.log_cids USING btree (header_id);
CREATE INDEX log_cid_block_number_index ON eth.log_cids USING btree (cid, block_number);
CREATE INDEX log_address_index ON eth.log_cids USING btree (address);
CREATE INDEX log_topic0_index ON eth.log_cids USING btree (topic0);
CREATE INDEX log_topic1_index ON eth.log_cids USING btree (topic1);
CREATE INDEX log_topic2_index ON eth.log_cids USING btree (topic2);
CREATE INDEX log_topic3_index ON eth.log_cids USING btree (topic3);
-- +goose Down
-- log indexes
DROP INDEX eth.log_topic3_index;
DROP INDEX eth.log_topic2_index;
DROP INDEX eth.log_topic1_index;
DROP INDEX eth.log_topic0_index;
DROP INDEX eth.log_address_index;
DROP INDEX eth.log_cid_block_number_index;
DROP INDEX eth.log_header_id_index;
DROP INDEX eth.log_block_number_index;
-- storage node indexes
DROP INDEX eth.storage_removed_index;
DROP INDEX eth.storage_header_id_index;
DROP INDEX eth.storage_cid_block_number_index;
DROP INDEX eth.storage_state_leaf_key_index;
DROP INDEX eth.storage_block_number_index;
DROP INDEX eth.storage_leaf_key_block_number_index;
-- state node indexes
DROP INDEX eth.state_code_hash_index;
DROP INDEX eth.state_removed_index;
DROP INDEX eth.state_header_id_index;
DROP INDEX eth.state_cid_block_number_index;
DROP INDEX eth.state_block_number_index;
DROP INDEX eth.state_leaf_key_block_number_index;
-- receipt indexes
DROP INDEX eth.rct_contract_index;
DROP INDEX eth.rct_cid_block_number_index;
DROP INDEX eth.rct_header_id_index;
DROP INDEX eth.rct_block_number_index;
-- transaction indexes
DROP INDEX eth.tx_src_index;
DROP INDEX eth.tx_dst_index;
DROP INDEX eth.tx_cid_block_number_index;
DROP INDEX eth.tx_header_id_index;
DROP INDEX eth.tx_block_number_index;
-- uncle indexes
DROP INDEX eth.uncle_block_number_index;
DROP INDEX eth.uncle_cid_block_number_index;
DROP INDEX eth.uncle_header_id_index;
-- header indexes
DROP INDEX eth.timestamp_index;
DROP INDEX eth.state_root_index;
DROP INDEX eth.header_cid_block_number_index;
DROP INDEX eth.header_block_number_index;

12
db/migrations/uml_support/00013_create_db_version_table.sql Normal file
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@ -0,0 +1,12 @@
-- +goose Up
CREATE TABLE IF NOT EXISTS public.db_version (
singleton BOOLEAN NOT NULL DEFAULT TRUE UNIQUE CHECK (singleton),
version TEXT NOT NULL,
tstamp TIMESTAMP WITHOUT TIME ZONE DEFAULT NOW()
);
INSERT INTO public.db_version (singleton, version) VALUES (true, 'v5.0.0')
ON CONFLICT (singleton) DO UPDATE SET (version, tstamp) = ('v5.0.0', NOW());
-- +goose Down
DROP TABLE public.db_version;

5
db/migrations/uml_support/00014_create_eth_meta_schema.sql Normal file
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@ -0,0 +1,5 @@
-- +goose Up
CREATE SCHEMA eth_meta;
-- +goose Down
DROP SCHEMA eth_meta;

10
db/migrations/uml_support/00015_create_watched_addresses_table.sql Normal file
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@ -0,0 +1,10 @@
-- +goose Up
CREATE TABLE eth_meta.watched_addresses (
address VARCHAR(66) PRIMARY KEY,
created_at BIGINT NOT NULL,
watched_at BIGINT NOT NULL,
last_filled_at BIGINT NOT NULL DEFAULT 0
);
-- +goose Down
DROP TABLE eth_meta.watched_addresses;

43
db/migrations/uml_support/00016_create_stored_procedures.sql Normal file
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@ -0,0 +1,43 @@
-- +goose Up
-- +goose StatementBegin
-- returns whether the state leaf key is vacated (previously existed but now is empty) at the provided block hash
CREATE OR REPLACE FUNCTION was_state_leaf_removed(v_key VARCHAR(66), v_hash VARCHAR)
RETURNS boolean AS $$
SELECT state_cids.removed = true
FROM eth.state_cids
INNER JOIN eth.header_cids ON (state_cids.header_id = header_cids.block_hash)
WHERE state_leaf_key = v_key
AND state_cids.block_number <= (SELECT block_number
FROM eth.header_cids
WHERE block_hash = v_hash)
ORDER BY state_cids.block_number DESC LIMIT 1;
$$
language sql;
-- +goose StatementEnd
-- +goose StatementBegin
-- returns whether the state leaf key is vacated (previously existed but now is empty) at the provided block height
CREATE OR REPLACE FUNCTION public.was_state_leaf_removed_by_number(v_key VARCHAR(66), v_block_no BIGINT)
RETURNS BOOLEAN AS $$
SELECT state_cids.removed = true
FROM eth.state_cids
INNER JOIN eth.header_cids ON (state_cids.header_id = header_cids.block_hash)
WHERE state_leaf_key = v_key
AND state_cids.block_number <= v_block_no
ORDER BY state_cids.block_number DESC LIMIT 1;
$$
language sql;
-- +goose StatementEnd
-- +goose StatementBegin
CREATE OR REPLACE FUNCTION canonical_header_hash(height BIGINT) RETURNS character varying AS
$BODY$
SELECT block_hash from eth.header_cids WHERE block_number = height AND canonical = true LIMIT 1;
$BODY$
LANGUAGE sql;
-- +goose StatementEnd
-- +goose Down
DROP FUNCTION was_state_leaf_removed;
DROP FUNCTION was_state_leaf_removed_by_number;
DROP FUNCTION canonical_header_hash;

110
db/migrations/uml_support/00017_create_get_storage_at_functions.sql Normal file
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@ -0,0 +1,110 @@
-- +goose Up
-- +goose StatementBegin
CREATE OR REPLACE FUNCTION public.get_storage_at_by_number(v_state_leaf_key text, v_storage_leaf_key text, v_block_no bigint)
RETURNS TABLE
(
cid TEXT,
val BYTEA,
block_number BIGINT,
removed BOOL,
state_leaf_removed BOOL
)
AS
$BODY$
DECLARE
v_state_path BYTEA;
v_header TEXT;
v_canonical_header TEXT;
BEGIN
CREATE TEMP TABLE tmp_tt_stg2
(
header_id TEXT,
cid TEXT,
val BYTEA,
block_number BIGINT,
removed BOOL,
state_leaf_removed BOOL
) ON COMMIT DROP;
-- in best case scenario, the latest record we find for the provided keys is for a canonical block
INSERT INTO tmp_tt_stg2
SELECT storage_cids.header_id,
storage_cids.cid,
storage_cids.val,
storage_cids.block_number,
storage_cids.removed,
was_state_leaf_removed_by_number(v_state_leaf_key, v_block_no) AS state_leaf_removed
FROM eth.storage_cids
WHERE storage_leaf_key = v_storage_leaf_key
AND storage_cids.state_leaf_key = v_state_leaf_key -- can lookup directly on the leaf key in v5
AND storage_cids.block_number <= v_block_no
ORDER BY storage_cids.block_number DESC LIMIT 1;
-- check if result is from canonical state
SELECT header_id, canonical_header_hash(tmp_tt_stg2.block_number)
INTO v_header, v_canonical_header
FROM tmp_tt_stg2 LIMIT 1;
IF v_header IS NULL OR v_header != v_canonical_header THEN
RAISE NOTICE 'get_storage_at_by_number: chosen header NULL OR % != canonical header % for block number %, trying again.', v_header, v_canonical_header, v_block_no;
TRUNCATE tmp_tt_stg2;
-- If we hit on a non-canonical block, we need to go back and do a comprehensive check.
-- We try to avoid this to avoid joining between storage_cids and header_cids
INSERT INTO tmp_tt_stg2
SELECT storage_cids.header_id,
storage_cids.cid,
storage_cids.val,
storage_cids.block_number,
storage_cids.removed,
was_state_leaf_removed_by_number(
v_state_leaf_key,
v_block_no
) AS state_leaf_removed
FROM eth.storage_cids
INNER JOIN eth.header_cids ON (
storage_cids.header_id = header_cids.block_hash
AND storage_cids.block_number = header_cids.block_number
)
WHERE state_leaf_key = v_state_leaf_key
AND storage_leaf_key = v_storage_leaf_key
AND storage_cids.block_number <= v_block_no
AND header_cids.block_number <= v_block_no
AND header_cids.block_hash = (SELECT canonical_header_hash(header_cids.block_number))
ORDER BY header_cids.block_number DESC LIMIT 1;
END IF;
RETURN QUERY SELECT t.cid, t.val, t.block_number, t.removed, t.state_leaf_removed
FROM tmp_tt_stg2 AS t LIMIT 1;
END
$BODY$
language 'plpgsql';
-- +goose StatementEnd
-- +goose StatementBegin
CREATE OR REPLACE FUNCTION public.get_storage_at_by_hash(v_state_leaf_key TEXT, v_storage_leaf_key text, v_block_hash text)
RETURNS TABLE
(
cid TEXT,
val BYTEA,
block_number BIGINT,
removed BOOL,
state_leaf_removed BOOL
)
AS
$BODY$
DECLARE
v_block_no BIGINT;
BEGIN
SELECT h.block_number INTO v_block_no FROM eth.header_cids AS h WHERE block_hash = v_block_hash LIMIT 1;
IF v_block_no IS NULL THEN
RETURN;
END IF;
RETURN QUERY SELECT * FROM get_storage_at_by_number(v_state_leaf_key, v_storage_leaf_key, v_block_no);
END
$BODY$
LANGUAGE 'plpgsql';
-- +goose StatementEnd
-- +goose Down
DROP FUNCTION get_storage_at_by_hash;
DROP FUNCTION get_storage_at_by_number;

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205
vulcanize_db.uml
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@ -1,148 +1,109 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<Diagram> <Diagram>
<ID>DATABASE</ID> <ID>DATABASE</ID>
<OriginalElement>407978cb-39e6-453c-b9b7-c4183a4e26ef</OriginalElement> <OriginalElement>86a0461b-ec84-4911-9aa2-e562b5d7b24c</OriginalElement>
<nodes> <nodes>
<node x="553.96484375" y="196.0">407978cb-39e6-453c-b9b7-c4183a4e26ef.TABLE:vulcanize_test.eth.header_cids</node> <node x="555.4049647830311" y="152.0">86a0461b-ec84-4911-9aa2-e562b5d7b24c.TABLE:uml_diagram.eth.header_cids</node>
<node x="93.5" y="944.0">407978cb-39e6-453c-b9b7-c4183a4e26ef.TABLE:vulcanize_test.eth.receipt_cids</node> <node x="498.0" y="1175.0">86a0461b-ec84-4911-9aa2-e562b5d7b24c.TABLE:uml_diagram.public.goose_db_version</node>
<node x="884.80078125" y="966.0">407978cb-39e6-453c-b9b7-c4183a4e26ef.TABLE:vulcanize_test.eth.state_accounts</node> <node x="0.0" y="1175.0">86a0461b-ec84-4911-9aa2-e562b5d7b24c.TABLE:uml_diagram.public.nodes</node>
<node x="849.705078125" y="0.0">407978cb-39e6-453c-b9b7-c4183a4e26ef.TABLE:vulcanize_test.public.nodes</node> <node x="821.7748627422149" y="876.0">86a0461b-ec84-4911-9aa2-e562b5d7b24c.TABLE:uml_diagram.eth.log_cids</node>
<node x="127.30078125" y="680.0">407978cb-39e6-453c-b9b7-c4183a4e26ef.TABLE:vulcanize_test.eth.uncle_cids</node> <node x="862.5299647830311" y="603.0">86a0461b-ec84-4911-9aa2-e562b5d7b24c.TABLE:uml_diagram.eth.uncle_cids</node>
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