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-- createTables.sql:
-- write:
CREATE TABLE IF NOT EXISTS "q_payloads" (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
timestamp TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%f000000Z', 'now')),
topic TEXT NOT NULL,
payload BLOB NOT NULL
) STRICT;
CREATE INDEX IF NOT EXISTS "q_payloads_topic"
ON "q_payloads"(topic);
CREATE TABLE IF NOT EXISTS "q_messages" (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
timestamp TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%f000000Z', 'now')),
uuid BLOB NOT NULL UNIQUE,
flow_id BLOB NOT NULL,
payload_id INTEGER NOT NULL
REFERENCES "q_payloads"(id)
) STRICT;
CREATE INDEX IF NOT EXISTS "q_messages_flow_id"
ON "q_messages"(flow_id);
CREATE TABLE IF NOT EXISTS "q_offsets" (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
timestamp TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%f000000Z', 'now')),
consumer TEXT NOT NULL,
message_id INTEGER NOT NULL
REFERENCES "q_messages"(id),
UNIQUE (consumer, message_id)
) STRICT;
CREATE INDEX IF NOT EXISTS "q_offsets_consumer"
ON "q_offsets"(consumer);
CREATE TABLE IF NOT EXISTS "q_deadletters" (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
uuid BLOB NOT NULL UNIQUE,
consumer TEXT NOT NULL,
message_id INTEGER NOT NULL
REFERENCES "q_messages"(id),
UNIQUE (consumer, message_id)
) STRICT;
CREATE INDEX IF NOT EXISTS "q_deadletters_consumer"
ON "q_deadletters"(consumer);
CREATE TABLE IF NOT EXISTS "q_replays" (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
deadletter_id INTEGER NOT NULL UNIQUE
REFERENCES "q_deadletters"(id) ,
message_id INTEGER NOT NULL UNIQUE
REFERENCES "q_messages"(id)
) STRICT;
CREATE TABLE IF NOT EXISTS "q_owners" (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
topic TEXT NOT NULL,
consumer TEXT NOT NULL,
owner_id INTEGER NOT NULL,
UNIQUE (topic, consumer)
) STRICT;
-- read:
-- owner:
-- take.sql:
-- write:
INSERT INTO "q_owners" (topic, consumer, owner_id)
VALUES (?, ?, ?)
ON CONFLICT (topic, consumer) DO
UPDATE SET owner_id=excluded.owner_id;
-- read:
-- owner:
-- publish.sql:
-- write:
INSERT INTO "q_payloads" (topic, payload)
VALUES (?, ?);
-- FIXME: must be inside a trnsaction
INSERT INTO "q_messages" (uuid, flow_id, payload_id)
VALUES (?, ?, last_insert_rowid());
-- read:
SELECT id, timestamp FROM "q_messages"
WHERE uuid = ?;
-- owner:
-- find.sql:
-- write:
-- read:
SELECT
"q_messages".id,
"q_messages".timestamp,
"q_messages".uuid,
"q_payloads".payload
FROM "q_messages"
JOIN "q_payloads" ON
"q_payloads".id = "q_messages".payload_id
WHERE
"q_payloads".topic = ? AND
"q_messages".flow_id = ?
ORDER BY "q_messages".id DESC
LIMIT 1;
-- owner:
-- pending.sql:
-- write:
-- read:
SELECT
"q_messages".id,
"q_messages".timestamp,
"q_messages".uuid,
"q_messages".flow_id,
"q_payloads".topic,
"q_payloads".payload
FROM "q_messages"
JOIN "q_payloads" ON
"q_payloads".id = "q_messages".payload_id
WHERE
"q_payloads".topic = ? AND
"q_messages".id NOT IN (
SELECT message_id FROM "q_offsets"
WHERE consumer = ?
)
ORDER BY "q_messages".id ASC;
-- owner:
SELECT owner_id FROM "q_owners"
WHERE
topic = ? AND
consumer = ?;
-- commit.sql:
-- write:
INSERT INTO "q_offsets" (consumer, message_id)
VALUES (?, (SELECT id FROM "q_messages" WHERE uuid = ?));
-- read:
SELECT "q_payloads".topic from "q_payloads"
JOIN "q_messages" ON
"q_payloads".id = "q_messages".payload_id
WHERE "q_messages".uuid = ?;
-- owner:
SELECT owner_id FROM "q_owners"
WHERE
topic = ? AND
consumer = ?;
-- toDead.sql:
-- write:
INSERT INTO "q_offsets" ( consumer, message_id)
VALUES ( ?, (SELECT id FROM "q_messages" WHERE uuid = ?));
INSERT INTO "q_deadletters" (uuid, consumer, message_id)
VALUES (?, ?, (SELECT id FROM "q_messages" WHERE uuid = ?));
-- read:
SELECT "q_payloads".topic FROM "q_payloads"
JOIN "q_messages" ON
"q_payloads".id = "q_messages".payload_id
WHERE "q_messages".uuid = ?;
-- owner:
SELECT owner_id FROM "q_owners"
WHERE
topic = ? AND
consumer = ?;
-- replay.sql:
-- write:
INSERT INTO "q_messages" (uuid, flow_id, payload_id)
SELECT
?,
"q_messages".flow_id,
"q_messages".payload_id
FROM "q_messages"
JOIN "q_deadletters" ON
"q_messages".id = "q_deadletters".message_id
WHERE "q_deadletters".uuid = ?;
INSERT INTO "q_replays" (deadletter_id, message_id)
VALUES (
(SELECT id FROM "q_deadletters" WHERE uuid = ?),
last_insert_rowid()
);
-- read:
SELECT
"q_messages".id,
"q_messages".timestamp,
"q_messages".flow_id,
"q_payloads".topic,
"q_payloads".payload
FROM "q_messages"
JOIN "q_payloads" ON
"q_payloads".id = "q_messages".payload_id
WHERE "q_messages".uuid = ?;
-- owner:
-- oneDead.sql:
-- write:
-- read:
SELECT
"q_deadletters".uuid,
"q_offsets".timestamp,
"q_messages".uuid
FROM "q_deadletters"
JOIN "q_offsets" ON
"q_deadletters".message_id = "q_offsets".message_id
JOIN "q_messages" ON
"q_deadletters".message_id = "q_messages".id
JOIN "q_payloads" ON
"q_messages".payload_id = "q_payloads".id
WHERE
"q_payloads".topic = ? AND
"q_deadletters".consumer = ? AND
"q_offsets".consumer = ? AND
"q_deadletters".id NOT IN (
SELECT deadletter_id FROM "q_replays"
)
ORDER BY "q_deadletters".id ASC
LIMIT 1;
-- owner:
-- allDead.sql:
-- write:
-- read:
SELECT
"q_deadletters".uuid,
"q_deadletters".message_id,
"q_offsets".timestamp,
"q_offsets".consumer,
"q_messages".timestamp,
"q_messages".uuid,
"q_messages".flow_id,
"q_payloads".topic,
"q_payloads".payload
FROM "q_deadletters"
JOIN "q_offsets" ON
"q_deadletters".message_id = "q_offsets".message_id
JOIN "q_messages" ON
"q_deadletters".message_id = "q_messages".id
JOIN "q_payloads" ON
"q_messages".payload_id = "q_payloads".id
WHERE
"q_payloads".topic = ? AND
"q_deadletters".consumer = ? AND
"q_offsets".consumer = ? AND
"q_deadletters".id NOT IN (
SELECT deadletter_id FROM "q_replays"
)
ORDER BY "q_deadletters".id ASC;
-- owner:
-- size.sql:
-- write:
-- read:
SELECT
COUNT(1) as size
FROM "q_messages"
JOIN "q_payloads" ON
"q_messages".payload_id = "q_payloads".id
WHERE "q_payloads".topic = ?;
-- owner:
-- count.sql:
-- write:
-- read:
SELECT
COUNT(1) as count
FROM "q_messages"
JOIN "q_offsets" ON
"q_messages".id = "q_offsets".message_id
JOIN "q_payloads" ON
"q_messages".payload_id = "q_payloads".id
WHERE
"q_payloads".topic = ? AND
"q_offsets".consumer = ?;
-- owner:
-- hasData.sql:
-- write:
-- read:
SELECT 1 as data
FROM "q_messages"
JOIN "q_payloads" ON
"q_payloads".id = "q_messages".payload_id
WHERE
"q_payloads".topic = ? AND
"q_messages".id NOT IN (
SELECT message_id FROM "q_offsets"
WHERE consumer = ?
)
LIMIT 1;
-- owner:
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