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expand primary key on account_transactions to support index only scans. fix account_tx stored procedure

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CJ Cobb
2021-04-28 15:35:20 +00:00
parent 3aed708262
commit 40d136b3fc
1 changed files with 13 additions and 16 deletions
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29
reporting/Pg.cpp
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@@ -781,8 +781,8 @@ create table if not exists transactions5 partition of transactions for values fr
create table if not exists transactions6 partition of transactions for values from (50000000) to (60000000);
create table if not exists transactions7 partition of transactions for values from (60000000) to (70000000);
-- create index if not exists tx_by_hash on transactions using hash (hash);
-- create index if not exists tx_by_lgr_seq on transactions using hash (ledger_seq);
create index if not exists tx_by_hash on transactions using hash (hash);
create index if not exists tx_by_lgr_seq on transactions using hash (ledger_seq);
-- Table that maps accounts to transactions affecting them. Deletes from the
-- ledger table cascade here based on ledger_seq.
@@ -791,7 +791,7 @@ CREATE TABLE IF NOT EXISTS account_transactions (
ledger_seq bigint NOT NULL ,
transaction_index bigint NOT NULL,
hash bytea NOT NULL,
PRIMARY KEY (account, ledger_seq, transaction_index)
PRIMARY KEY (account, ledger_seq, transaction_index, hash)
) PARTITION BY RANGE (ledger_seq);
create table if not exists account_transactions1 partition of account_transactions for values from (0) to (10000000);
create table if not exists account_transactions2 partition of account_transactions for values from (10000000) to (20000000);
@@ -839,10 +839,13 @@ CREATE TABLE IF NOT EXISTS books (
-- To reiterate:
-- JSON input field 'ledger' corresponds to _in_marker_seq
-- JSON input field 'seq' corresponds to _in_marker_index
CREATE OR REPLACE FUNCTION account_tx(_in_account_id bytea, _in_limit bigint, _in_marker_seq bigint DEFAULT NULL::bigint, _in_marker_index bigint DEFAULT NULL::bigint)
RETURNS jsonb
LANGUAGE plpgsql
AS $function$
CREATE OR REPLACE FUNCTION account_tx(
_in_account_id bytea,
_in_limit bigint,
_in_marker_seq bigint DEFAULT NULL::bigint,
_in_marker_index bigint DEFAULT NULL::bigint)
RETURNS jsonb
AS $$
DECLARE
_min bigint;
_max bigint;
@@ -878,7 +881,7 @@ BEGIN
_sql := format('SELECT hash, ledger_seq, transaction_index FROM account_transactions WHERE account = $1
AND ledger_seq BETWEEN $2 AND $3 ORDER BY ledger_seq, transaction_index');
AND ledger_seq BETWEEN $2 AND $3 ORDER BY ledger_seq DESC, transaction_index DESC');
OPEN _cursor FOR EXECUTE _sql USING _in_account_id, _between_min, _between_max;
LOOP
@@ -886,14 +889,8 @@ BEGIN
IF _record IS NULL THEN EXIT; END IF;
IF _marker IS TRUE THEN
IF _in_marker_seq = _record.ledger_seq THEN
IF _in_forward IS TRUE THEN
IF _in_marker_index > _record.transaction_index THEN
CONTINUE;
END IF;
ELSE
IF _in_marker_index < _record.transaction_index THEN
CONTINUE;
END IF;
IF _in_marker_index < _record.transaction_index THEN
CONTINUE;
END IF;
END IF;
_marker := FALSE;