use crate::store::dialect::{DbStateSql, MessageSql, SqlDialect, StepSql, WorkerSql};
#[cfg(any(feature = "sqlite", feature = "turso"))]
use crate::store::dialect::{QueueSql, RunSql, WorkflowSql};
pub(crate) struct PostgresDialect;
impl SqlDialect for PostgresDialect {
const STEP: StepSql = StepSql {
get: r#"
SELECT
id,
run_id,
step_name,
status,
input,
output,
error,
created_at,
updated_at,
retry_at,
retry_count
FROM pgqrs_workflow_steps
WHERE id = $1
"#,
list: r#"
SELECT
id,
run_id,
step_name,
status,
input,
output,
error,
created_at,
updated_at,
retry_at,
retry_count
FROM pgqrs_workflow_steps
ORDER BY created_at DESC
"#,
count: r#"
SELECT COUNT(*) FROM pgqrs_workflow_steps
"#,
delete: r#"
DELETE FROM pgqrs_workflow_steps WHERE id = $1
"#,
acquire: r#"
INSERT INTO pgqrs_workflow_steps (run_id, step_name, status, started_at, retry_count)
VALUES ($1, $2, 'RUNNING'::pgqrs_workflow_status, NOW(), 0)
ON CONFLICT (run_id, step_name) DO UPDATE
SET status = CASE
WHEN pgqrs_workflow_steps.status = 'SUCCESS' THEN 'SUCCESS'::pgqrs_workflow_status
WHEN pgqrs_workflow_steps.status = 'ERROR' THEN 'ERROR'::pgqrs_workflow_status
ELSE 'RUNNING'::pgqrs_workflow_status
END,
started_at = CASE
WHEN pgqrs_workflow_steps.status IN ('SUCCESS', 'ERROR') THEN pgqrs_workflow_steps.started_at
ELSE NOW()
END
RETURNING
id,
run_id,
step_name,
status,
input,
output,
error,
created_at,
updated_at,
retry_at,
retry_count
"#,
clear_retry: r#"
UPDATE pgqrs_workflow_steps
SET status = 'RUNNING'::pgqrs_workflow_status, retry_at = NULL, error = NULL
WHERE id = $1
RETURNING
id,
run_id,
step_name,
status,
input,
output,
error,
created_at,
updated_at,
retry_at,
retry_count
"#,
complete: r#"
UPDATE pgqrs_workflow_steps
SET status = 'SUCCESS'::pgqrs_workflow_status, output = $2, completed_at = NOW()
WHERE id = $1
RETURNING
id,
run_id,
step_name,
status,
input,
output,
error,
created_at,
updated_at,
retry_at,
retry_count
"#,
fail: r#"
UPDATE pgqrs_workflow_steps
SET status = 'ERROR'::pgqrs_workflow_status, error = $2, completed_at = NOW(),
retry_at = $3, retry_count = $4
WHERE id = $1
RETURNING
id,
run_id,
step_name,
status,
input,
output,
error,
created_at,
updated_at,
retry_at,
retry_count
"#,
};
#[cfg(any(feature = "sqlite", feature = "turso"))]
const QUEUE: QueueSql = QueueSql {
insert: r#"
INSERT INTO pgqrs_queues (queue_name)
VALUES ($1)
RETURNING id, queue_name, created_at
"#,
get: r#"
SELECT id, queue_name, created_at
FROM pgqrs_queues
WHERE id = $1
"#,
get_by_name: r#"
SELECT id, queue_name, created_at
FROM pgqrs_queues
WHERE queue_name = $1
"#,
list: r#"
SELECT id, queue_name, created_at
FROM pgqrs_queues
ORDER BY created_at DESC
"#,
delete: r#"
DELETE FROM pgqrs_queues
WHERE id = $1
"#,
delete_by_name: r#"
DELETE FROM pgqrs_queues
WHERE queue_name = $1
"#,
exists: r#"
SELECT EXISTS(SELECT 1 FROM pgqrs_queues WHERE queue_name = $1)
"#,
};
#[cfg(any(feature = "sqlite", feature = "turso"))]
const RUN: RunSql = RunSql {
insert: r#"
INSERT INTO pgqrs_workflow_runs (workflow_id, message_id, status, input, created_at, updated_at)
VALUES ($1, $2, 'QUEUED', $3, NOW(), NOW())
RETURNING id, workflow_id, message_id, status, input, output, error, created_at, updated_at
"#,
get: r#"
SELECT id, workflow_id, message_id, status, input, output, error, created_at, updated_at
FROM pgqrs_workflow_runs
WHERE id = $1
"#,
list: r#"
SELECT id, workflow_id, message_id, status, input, output, error, created_at, updated_at
FROM pgqrs_workflow_runs
ORDER BY created_at DESC
"#,
count: r#"
SELECT COUNT(*) FROM pgqrs_workflow_runs
"#,
delete: r#"
DELETE FROM pgqrs_workflow_runs WHERE id = $1
"#,
start: r#"
UPDATE pgqrs_workflow_runs
SET status = 'RUNNING',
started_at = CASE WHEN status = 'QUEUED' THEN NOW() ELSE started_at END,
updated_at = NOW()
WHERE id = $1 AND status IN ('QUEUED', 'PAUSED')
RETURNING id, workflow_id, message_id, status, input, output, error, created_at, updated_at
"#,
get_status: r#"
SELECT status FROM pgqrs_workflow_runs WHERE id = $1
"#,
complete: r#"
UPDATE pgqrs_workflow_runs
SET status = 'SUCCESS', output = $2, updated_at = NOW(), completed_at = NOW()
WHERE id = $1
"#,
pause: r#"
UPDATE pgqrs_workflow_runs
SET status = 'PAUSED', error = $2, paused_at = NOW(), updated_at = NOW()
WHERE id = $1
"#,
fail: r#"
UPDATE pgqrs_workflow_runs
SET status = 'ERROR', error = $2, updated_at = NOW(), completed_at = NOW()
WHERE id = $1
"#,
get_by_message_id: r#"
SELECT id, workflow_id, message_id, status, input, output, error, created_at, updated_at
FROM pgqrs_workflow_runs
WHERE message_id = $1
"#,
};
const MESSAGE: MessageSql = MessageSql {
list_by_consumer_worker: r#"
SELECT id, queue_id, payload, vt, enqueued_at, read_ct, dequeued_at, producer_worker_id, consumer_worker_id, archived_at
FROM pgqrs_messages
WHERE consumer_worker_id = $1
ORDER BY id
"#,
count_by_consumer_worker: r#"
SELECT COUNT(*)
FROM pgqrs_messages
WHERE consumer_worker_id = $1 AND archived_at IS NULL
"#,
count_worker_references: r#"
SELECT COUNT(*) as total_references FROM (
SELECT 1 FROM pgqrs_messages WHERE producer_worker_id = $1 OR consumer_worker_id = $2
) refs
"#,
move_to_dlq: r#"
UPDATE pgqrs_messages
SET archived_at = NOW()
WHERE read_ct >= $1 AND archived_at IS NULL
RETURNING id as original_msg_id
"#,
release_by_consumer_worker: r#"
UPDATE pgqrs_messages
SET vt = NOW(), consumer_worker_id = NULL
WHERE consumer_worker_id = $1 AND archived_at IS NULL
"#,
};
const WORKER: WorkerSql = WorkerSql {
mark_stopped: r#"
UPDATE pgqrs_workers
SET status = 'stopped',
shutdown_at = NOW()
WHERE id = $1
"#,
};
#[cfg(any(feature = "sqlite", feature = "turso"))]
const WORKFLOW: WorkflowSql = WorkflowSql {
get_by_name: r#"
SELECT id, name, queue_id, created_at
FROM pgqrs_workflows
WHERE name = $1
"#,
insert: r#"
INSERT INTO pgqrs_workflows (name, queue_id, created_at)
VALUES ($1, $2, $3)
RETURNING id, name, queue_id, created_at
"#,
get: r#"
SELECT id, name, queue_id, created_at
FROM pgqrs_workflows
WHERE id = $1
"#,
list: r#"
SELECT id, name, queue_id, created_at
FROM pgqrs_workflows
ORDER BY created_at DESC
"#,
count: r#"
SELECT COUNT(*) FROM pgqrs_workflows
"#,
delete: r#"
DELETE FROM pgqrs_workflows WHERE id = $1
"#,
};
const DB_STATE: DbStateSql = DbStateSql {
check_table_exists: r#"
SELECT EXISTS (
SELECT 1 FROM information_schema.tables
WHERE table_name = $1
)
"#,
check_orphaned_messages: r#"
SELECT COUNT(*)
FROM pgqrs_messages m
LEFT OUTER JOIN pgqrs_queues q ON m.queue_id = q.id
WHERE q.id IS NULL
"#,
check_orphaned_message_workers: r#"
SELECT COUNT(*)
FROM pgqrs_messages m
LEFT OUTER JOIN pgqrs_workers pw ON m.producer_worker_id = pw.id
LEFT OUTER JOIN pgqrs_workers cw ON m.consumer_worker_id = cw.id
WHERE (m.producer_worker_id IS NOT NULL AND pw.id IS NULL)
OR (m.consumer_worker_id IS NOT NULL AND cw.id IS NULL)
"#,
purge_queue_messages: r#"
DELETE FROM pgqrs_messages WHERE queue_id = $1
"#,
purge_queue_workers: r#"
DELETE FROM pgqrs_workers WHERE queue_id = $1
"#,
queue_metrics: r#"
SELECT
q.queue_name as name,
COUNT(m.id) as total_messages,
COUNT(m.id) FILTER (WHERE m.consumer_worker_id IS NULL AND m.archived_at IS NULL) as pending_messages,
COUNT(m.id) FILTER (WHERE m.consumer_worker_id IS NOT NULL AND m.archived_at IS NULL) as locked_messages,
COUNT(m.id) FILTER (WHERE m.archived_at IS NOT NULL) as archived_messages,
MIN(m.enqueued_at) FILTER (WHERE m.consumer_worker_id IS NULL AND m.archived_at IS NULL) as oldest_pending_message,
MAX(m.enqueued_at) as newest_message
FROM pgqrs_queues q
LEFT JOIN pgqrs_messages m ON q.id = m.queue_id
WHERE q.id = $1
GROUP BY q.id, q.queue_name
"#,
all_queues_metrics: r#"
SELECT
q.queue_name as name,
COUNT(m.id) as total_messages,
COUNT(m.id) FILTER (WHERE m.consumer_worker_id IS NULL AND m.archived_at IS NULL) as pending_messages,
COUNT(m.id) FILTER (WHERE m.consumer_worker_id IS NOT NULL AND m.archived_at IS NULL) as locked_messages,
COUNT(m.id) FILTER (WHERE m.archived_at IS NOT NULL) as archived_messages,
MIN(m.enqueued_at) FILTER (WHERE m.consumer_worker_id IS NULL AND m.archived_at IS NULL) as oldest_pending_message,
MAX(m.enqueued_at) as newest_message
FROM pgqrs_queues q
LEFT JOIN pgqrs_messages m ON q.id = m.queue_id
GROUP BY q.id, q.queue_name
"#,
system_stats: r#"
SELECT
(SELECT COUNT(*) FROM pgqrs_queues) as total_queues,
(SELECT COUNT(*) FROM pgqrs_workers) as total_workers,
(SELECT COUNT(*) FROM pgqrs_workers WHERE status = 'ready') as active_workers,
(SELECT COUNT(*) FROM pgqrs_messages WHERE archived_at IS NULL) as total_messages,
(SELECT COUNT(*) FROM pgqrs_messages WHERE consumer_worker_id IS NULL AND archived_at IS NULL) as pending_messages,
(SELECT COUNT(*) FROM pgqrs_messages WHERE consumer_worker_id IS NOT NULL AND archived_at IS NULL) as locked_messages,
(SELECT COUNT(*) FROM pgqrs_messages WHERE archived_at IS NOT NULL) as archived_messages,
'0.5.0' as schema_version
"#,
worker_health_global: r#"
SELECT
'Global' as queue_name,
COUNT(*) as total_workers,
COUNT(*) FILTER (WHERE status = 'ready') as ready_workers,
COUNT(*) FILTER (WHERE status = 'polling') as polling_workers,
COUNT(*) FILTER (WHERE status = 'interrupted') as interrupted_workers,
COUNT(*) FILTER (WHERE status = 'suspended') as suspended_workers,
COUNT(*) FILTER (WHERE status = 'stopped') as stopped_workers,
COUNT(*) FILTER (WHERE status IN ('ready', 'polling') AND heartbeat_at < $1) as stale_workers
FROM pgqrs_workers
"#,
worker_health_by_queue: r#"
SELECT
COALESCE(q.queue_name, 'Admin') as queue_name,
COUNT(w.id) as total_workers,
COUNT(w.id) FILTER (WHERE w.status = 'ready') as ready_workers,
COUNT(w.id) FILTER (WHERE w.status = 'polling') as polling_workers,
COUNT(w.id) FILTER (WHERE w.status = 'interrupted') as interrupted_workers,
COUNT(w.id) FILTER (WHERE w.status = 'suspended') as suspended_workers,
COUNT(w.id) FILTER (WHERE w.status = 'stopped') as stopped_workers,
COUNT(w.id) FILTER (WHERE w.status IN ('ready', 'polling') AND w.heartbeat_at < $1) as stale_workers
FROM pgqrs_workers w
LEFT JOIN pgqrs_queues q ON w.queue_id = q.id
GROUP BY q.queue_name
"#,
purge_old_workers: r#"
DELETE FROM pgqrs_workers
WHERE status = 'stopped'
AND heartbeat_at < $1
AND id NOT IN (
SELECT DISTINCT worker_id
FROM (
SELECT producer_worker_id as worker_id FROM pgqrs_messages WHERE producer_worker_id IS NOT NULL
UNION
SELECT consumer_worker_id as worker_id FROM pgqrs_messages WHERE consumer_worker_id IS NOT NULL
) refs
)
"#,
};
}