ha executor

migrations/20250101000004_trigger_sensor_event_rule.sql

@@ -201,6 +201,9 @@ CREATE INDEX idx_enforcement_rule_status ON enforcement(rule, status);
 CREATE INDEX idx_enforcement_event_status ON enforcement(event, status);
 CREATE INDEX idx_enforcement_payload_gin ON enforcement USING GIN (payload);
 CREATE INDEX idx_enforcement_conditions_gin ON enforcement USING GIN (conditions);
+CREATE UNIQUE INDEX uq_enforcement_rule_event
+    ON enforcement (rule, event)
+    WHERE rule IS NOT NULL AND event IS NOT NULL;
 
 -- Comments
 COMMENT ON TABLE enforcement IS 'Enforcements represent rule triggering by events';

migrations/20250101000005_execution_and_operations.sql

@@ -4,13 +4,8 @@
 --              Consolidates former migrations: 000006 (execution_system), 000008
 --              (worker_notification), 000014 (worker_table), and 20260209 (phase3).
 --
---              NOTE: The execution table is converted to a TimescaleDB hypertable in
---              migration 000009. Hypertables cannot be the target of FK constraints,
---              so columns referencing execution (inquiry.execution, workflow_execution.execution)
---              are plain BIGINT with no FK. Similarly, columns ON the execution table that
---              would self-reference or reference other hypertables (parent, enforcement,
---              original_execution) are plain BIGINT. The action and executor FKs are also
---              omitted since they would need to be dropped during hypertable conversion.
+--              NOTE: `execution` remains a regular PostgreSQL table. Time-series
+--              audit and analytics are handled by `execution_history`.
 -- Version: 20250101000005
 
 -- ============================================================================
@@ -19,27 +14,27 @@
 
 CREATE TABLE execution (
     id BIGSERIAL PRIMARY KEY,
-    action BIGINT,          -- references action(id); no FK because execution becomes a hypertable
+    action BIGINT,
     action_ref TEXT NOT NULL,
     config JSONB,
     env_vars JSONB,
-    parent BIGINT,          -- self-reference; no FK because execution becomes a hypertable
-    enforcement BIGINT,     -- references enforcement(id); no FK (both are hypertables)
-    executor BIGINT,        -- references identity(id); no FK because execution becomes a hypertable
-    worker BIGINT,          -- references worker(id); no FK because execution becomes a hypertable
+    parent BIGINT,
+    enforcement BIGINT,
+    executor BIGINT,
+    worker BIGINT,
     status execution_status_enum NOT NULL DEFAULT 'requested',
     result JSONB,
     started_at TIMESTAMPTZ,         -- set when execution transitions to 'running'
     created TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     is_workflow BOOLEAN DEFAULT false NOT NULL,
-    workflow_def BIGINT,    -- references workflow_definition(id); no FK because execution becomes a hypertable
+    workflow_def BIGINT,
     workflow_task JSONB,
 
     -- Retry tracking (baked in from phase 3)
     retry_count INTEGER NOT NULL DEFAULT 0,
     max_retries INTEGER,
     retry_reason TEXT,
-    original_execution BIGINT, -- self-reference; no FK because execution becomes a hypertable
+    original_execution BIGINT,
 
     updated TIMESTAMPTZ NOT NULL DEFAULT NOW()
 );
@@ -64,6 +59,11 @@ CREATE INDEX idx_execution_result_gin ON execution USING GIN (result);
 CREATE INDEX idx_execution_env_vars_gin ON execution USING GIN (env_vars);
 CREATE INDEX idx_execution_original_execution ON execution(original_execution) WHERE original_execution IS NOT NULL;
 CREATE INDEX idx_execution_status_retry ON execution(status, retry_count) WHERE status = 'failed' AND retry_count < COALESCE(max_retries, 0);
+CREATE UNIQUE INDEX uq_execution_top_level_enforcement
+    ON execution (enforcement)
+    WHERE enforcement IS NOT NULL
+      AND parent IS NULL
+      AND (config IS NULL OR NOT (config ? 'retry_of'));
 
 -- Trigger
 CREATE TRIGGER update_execution_updated
@@ -77,10 +77,10 @@ COMMENT ON COLUMN execution.action IS 'Action being executed (may be null if act
 COMMENT ON COLUMN execution.action_ref IS 'Action reference (preserved even if action deleted)';
 COMMENT ON COLUMN execution.config IS 'Snapshot of action configuration at execution time';
 COMMENT ON COLUMN execution.env_vars IS 'Environment variables for this execution as key-value pairs (string -> string). These are set in the execution environment and are separate from action parameters. Used for execution context, configuration, and non-sensitive metadata.';
-COMMENT ON COLUMN execution.parent IS 'Parent execution ID for workflow hierarchies (no FK — execution is a hypertable)';
-COMMENT ON COLUMN execution.enforcement IS 'Enforcement that triggered this execution (no FK — both are hypertables)';
-COMMENT ON COLUMN execution.executor IS 'Identity that initiated the execution (no FK — execution is a hypertable)';
-COMMENT ON COLUMN execution.worker IS 'Assigned worker handling this execution (no FK — execution is a hypertable)';
+COMMENT ON COLUMN execution.parent IS 'Parent execution ID for workflow hierarchies';
+COMMENT ON COLUMN execution.enforcement IS 'Enforcement that triggered this execution';
+COMMENT ON COLUMN execution.executor IS 'Identity that initiated the execution';
+COMMENT ON COLUMN execution.worker IS 'Assigned worker handling this execution';
 COMMENT ON COLUMN execution.status IS 'Current execution lifecycle status';
 COMMENT ON COLUMN execution.result IS 'Execution output/results';
 COMMENT ON COLUMN execution.retry_count IS 'Current retry attempt number (0 = first attempt, 1 = first retry, etc.)';
@@ -96,7 +96,7 @@ COMMENT ON COLUMN execution.original_execution IS 'ID of the original execution
 
 CREATE TABLE inquiry (
     id BIGSERIAL PRIMARY KEY,
-    execution BIGINT NOT NULL, -- references execution(id); no FK because execution is a hypertable
+    execution BIGINT NOT NULL,
     prompt TEXT NOT NULL,
     response_schema JSONB,
     assigned_to BIGINT REFERENCES identity(id) ON DELETE SET NULL,
@@ -109,7 +109,7 @@ CREATE TABLE inquiry (
 );
 
 -- Indexes
-CREATE INDEX idx_inquiry_execution ON inquiry(execution);
+CREATE UNIQUE INDEX uq_inquiry_execution ON inquiry(execution) WHERE execution IS NOT NULL;
 CREATE INDEX idx_inquiry_assigned_to ON inquiry(assigned_to);
 CREATE INDEX idx_inquiry_status ON inquiry(status);
 CREATE INDEX idx_inquiry_timeout_at ON inquiry(timeout_at) WHERE timeout_at IS NOT NULL;
@@ -127,7 +127,31 @@ CREATE TRIGGER update_inquiry_updated
 
 -- Comments
 COMMENT ON TABLE inquiry IS 'Inquiries enable human-in-the-loop workflows with async user interactions';
-COMMENT ON COLUMN inquiry.execution IS 'Execution that is waiting on this inquiry (no FK — execution is a hypertable)';
+COMMENT ON COLUMN inquiry.execution IS 'Execution that is waiting on this inquiry';
+
+ALTER TABLE execution
+    ADD CONSTRAINT execution_action_fkey
+    FOREIGN KEY (action) REFERENCES action(id) ON DELETE SET NULL;
+
+ALTER TABLE execution
+    ADD CONSTRAINT execution_parent_fkey
+    FOREIGN KEY (parent) REFERENCES execution(id) ON DELETE SET NULL;
+
+ALTER TABLE execution
+    ADD CONSTRAINT execution_original_execution_fkey
+    FOREIGN KEY (original_execution) REFERENCES execution(id) ON DELETE SET NULL;
+
+ALTER TABLE execution
+    ADD CONSTRAINT execution_enforcement_fkey
+    FOREIGN KEY (enforcement) REFERENCES enforcement(id) ON DELETE SET NULL;
+
+ALTER TABLE execution
+    ADD CONSTRAINT execution_executor_fkey
+    FOREIGN KEY (executor) REFERENCES identity(id) ON DELETE SET NULL;
+
+ALTER TABLE inquiry
+    ADD CONSTRAINT inquiry_execution_fkey
+    FOREIGN KEY (execution) REFERENCES execution(id) ON DELETE CASCADE;
 COMMENT ON COLUMN inquiry.prompt IS 'Question or prompt text for the user';
 COMMENT ON COLUMN inquiry.response_schema IS 'JSON schema defining expected response format';
 COMMENT ON COLUMN inquiry.assigned_to IS 'Identity who should respond to this inquiry';
@@ -261,6 +285,10 @@ COMMENT ON COLUMN worker.capabilities IS 'Worker capabilities (e.g., max_concurr
 COMMENT ON COLUMN worker.meta IS 'Additional worker metadata';
 COMMENT ON COLUMN worker.last_heartbeat IS 'Timestamp of last heartbeat from worker';
 
+ALTER TABLE execution
+    ADD CONSTRAINT execution_worker_fkey
+    FOREIGN KEY (worker) REFERENCES worker(id) ON DELETE SET NULL;
+
 -- ============================================================================
 -- NOTIFICATION TABLE
 -- ============================================================================

migrations/20250101000006_workflow_system.sql

@@ -1,13 +1,11 @@
 -- Migration: Workflow System
--- Description: Creates workflow_definition and workflow_execution tables
+-- Description: Creates workflow_definition, workflow_execution, and
+--              workflow_task_dispatch tables
 --              (workflow_task_execution consolidated into execution.workflow_task JSONB)
 --
---              NOTE: The execution table is converted to a TimescaleDB hypertable in
---              migration 000009. Hypertables cannot be the target of FK constraints,
---              so workflow_execution.execution is a plain BIGINT with no FK.
---              execution.workflow_def also has no FK (added as plain BIGINT in 000005)
---              since execution is a hypertable and FKs from hypertables are only
---              supported for simple cases — we omit it for consistency.
+--              NOTE: `execution` remains a regular PostgreSQL table, so
+--              workflow_execution.execution, workflow_task_dispatch.execution_id,
+--              and execution.workflow_def use normal foreign keys.
 -- Version: 20250101000006
 
 -- ============================================================================
@@ -54,7 +52,7 @@ COMMENT ON COLUMN workflow_definition.out_schema IS 'JSON schema for workflow ou
 
 CREATE TABLE workflow_execution (
     id BIGSERIAL PRIMARY KEY,
-    execution BIGINT NOT NULL, -- references execution(id); no FK because execution is a hypertable
+    execution BIGINT NOT NULL REFERENCES execution(id) ON DELETE CASCADE,
     workflow_def BIGINT NOT NULL REFERENCES workflow_definition(id) ON DELETE CASCADE,
     current_tasks TEXT[] DEFAULT '{}',
     completed_tasks TEXT[] DEFAULT '{}',
@@ -83,12 +81,51 @@ CREATE TRIGGER update_workflow_execution_updated
     EXECUTE FUNCTION update_updated_column();
 
 -- Comments
-COMMENT ON TABLE workflow_execution IS 'Runtime state tracking for workflow executions. execution column has no FK — execution is a hypertable.';
+COMMENT ON TABLE workflow_execution IS 'Runtime state tracking for workflow executions.';
 COMMENT ON COLUMN workflow_execution.variables IS 'Workflow-scoped variables, updated via publish directives';
 COMMENT ON COLUMN workflow_execution.task_graph IS 'Execution graph with dependencies and transitions';
 COMMENT ON COLUMN workflow_execution.current_tasks IS 'Array of task names currently executing';
 COMMENT ON COLUMN workflow_execution.paused IS 'True if workflow execution is paused (can be resumed)';
 
+-- ============================================================================
+-- WORKFLOW TASK DISPATCH TABLE
+-- ============================================================================
+
+CREATE TABLE workflow_task_dispatch (
+    id BIGSERIAL PRIMARY KEY,
+    workflow_execution BIGINT NOT NULL REFERENCES workflow_execution(id) ON DELETE CASCADE,
+    task_name TEXT NOT NULL,
+    task_index INT,
+    execution_id BIGINT,
+    created TIMESTAMPTZ DEFAULT NOW() NOT NULL,
+    updated TIMESTAMPTZ DEFAULT NOW() NOT NULL
+);
+
+CREATE UNIQUE INDEX uq_workflow_task_dispatch_identity
+    ON workflow_task_dispatch (
+        workflow_execution,
+        task_name,
+        COALESCE(task_index, -1)
+    );
+
+CREATE INDEX idx_workflow_task_dispatch_execution_id
+    ON workflow_task_dispatch (execution_id)
+    WHERE execution_id IS NOT NULL;
+
+CREATE TRIGGER update_workflow_task_dispatch_updated
+    BEFORE UPDATE ON workflow_task_dispatch
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
+COMMENT ON TABLE workflow_task_dispatch IS
+    'Durable dedupe/ownership records for workflow child execution dispatch';
+COMMENT ON COLUMN workflow_task_dispatch.execution_id IS
+    'Associated execution.id';
+
+ALTER TABLE workflow_task_dispatch
+    ADD CONSTRAINT workflow_task_dispatch_execution_id_fkey
+    FOREIGN KEY (execution_id) REFERENCES execution(id) ON DELETE CASCADE;
+
 -- ============================================================================
 -- MODIFY ACTION TABLE - Add Workflow Support
 -- ============================================================================
@@ -100,9 +137,9 @@ CREATE INDEX idx_action_workflow_def ON action(workflow_def);
 
 COMMENT ON COLUMN action.workflow_def IS 'Reference to workflow definition (non-null means this action is a workflow)';
 
--- NOTE: execution.workflow_def has no FK constraint because execution is a
--- TimescaleDB hypertable (converted in migration 000009). The column was
--- created as a plain BIGINT in migration 000005.
+ALTER TABLE execution
+    ADD CONSTRAINT execution_workflow_def_fkey
+    FOREIGN KEY (workflow_def) REFERENCES workflow_definition(id) ON DELETE SET NULL;
 
 -- ============================================================================
 -- WORKFLOW VIEWS

migrations/20250101000007_supporting_systems.sql

@@ -1,6 +1,6 @@
 -- Migration: Supporting Systems
--- Description: Creates keys, artifacts, queue_stats, pack_environment, pack_testing,
---              and webhook function tables.
+-- Description: Creates keys, artifacts, queue_stats, execution_admission,
+--              pack_environment, pack_testing, and webhook function tables.
 --              Consolidates former migrations: 000009 (keys_artifacts), 000010 (webhook_system),
 --              000011 (pack_environments), and 000012 (pack_testing).
 -- Version: 20250101000007
@@ -206,6 +206,76 @@ COMMENT ON COLUMN queue_stats.total_enqueued IS 'Total executions enqueued since
 COMMENT ON COLUMN queue_stats.total_completed IS 'Total executions completed since queue creation';
 COMMENT ON COLUMN queue_stats.last_updated IS 'Timestamp of last statistics update';
 
+-- ============================================================================
+-- EXECUTION ADMISSION TABLES
+-- ============================================================================
+
+CREATE TABLE execution_admission_state (
+    id BIGSERIAL PRIMARY KEY,
+    action_id BIGINT NOT NULL REFERENCES action(id) ON DELETE CASCADE,
+    group_key TEXT,
+    group_key_normalized TEXT GENERATED ALWAYS AS (COALESCE(group_key, '')) STORED,
+    max_concurrent INTEGER NOT NULL,
+    next_queue_order BIGINT NOT NULL DEFAULT 1,
+    total_enqueued BIGINT NOT NULL DEFAULT 0,
+    total_completed BIGINT NOT NULL DEFAULT 0,
+    created TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    CONSTRAINT uq_execution_admission_state_identity
+        UNIQUE (action_id, group_key_normalized)
+);
+
+CREATE TABLE execution_admission_entry (
+    id BIGSERIAL PRIMARY KEY,
+    state_id BIGINT NOT NULL REFERENCES execution_admission_state(id) ON DELETE CASCADE,
+    execution_id BIGINT NOT NULL UNIQUE REFERENCES execution(id) ON DELETE CASCADE,
+    status TEXT NOT NULL CHECK (status IN ('active', 'queued')),
+    queue_order BIGINT NOT NULL,
+    enqueued_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    activated_at TIMESTAMPTZ,
+    created TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_execution_admission_state_action
+    ON execution_admission_state (action_id);
+
+CREATE INDEX idx_execution_admission_entry_state_status_queue
+    ON execution_admission_entry (state_id, status, queue_order);
+
+CREATE INDEX idx_execution_admission_entry_execution
+    ON execution_admission_entry (execution_id);
+
+CREATE TRIGGER update_execution_admission_state_updated
+    BEFORE UPDATE ON execution_admission_state
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
+CREATE TRIGGER update_execution_admission_entry_updated
+    BEFORE UPDATE ON execution_admission_entry
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
+COMMENT ON TABLE execution_admission_state IS
+    'Shared admission state per action/group for executor concurrency and FIFO coordination';
+COMMENT ON COLUMN execution_admission_state.group_key IS
+    'Optional parameter-derived concurrency grouping key';
+COMMENT ON COLUMN execution_admission_state.max_concurrent IS
+    'Current concurrency limit for this action/group queue';
+COMMENT ON COLUMN execution_admission_state.next_queue_order IS
+    'Monotonic sequence used to preserve exact FIFO order for queued executions';
+COMMENT ON COLUMN execution_admission_state.total_enqueued IS
+    'Cumulative number of executions admitted into this queue';
+COMMENT ON COLUMN execution_admission_state.total_completed IS
+    'Cumulative number of active executions released from this queue';
+
+COMMENT ON TABLE execution_admission_entry IS
+    'Active slot ownership and queued executions for shared admission control';
+COMMENT ON COLUMN execution_admission_entry.status IS
+    'active rows own a concurrency slot; queued rows wait in FIFO order';
+COMMENT ON COLUMN execution_admission_entry.queue_order IS
+    'Durable FIFO position within an action/group queue';
+
 -- ============================================================================
 -- PACK ENVIRONMENT TABLE
 -- ============================================================================

migrations/20250101000009_timescaledb_history.sql

@@ -143,52 +143,8 @@ SELECT create_hypertable('event', 'created',
 
 COMMENT ON TABLE event IS 'Events are instances of triggers firing (TimescaleDB hypertable partitioned on created)';
 
--- ============================================================================
--- CONVERT ENFORCEMENT TABLE TO HYPERTABLE
--- ============================================================================
--- Enforcements are created and then updated exactly once (status changes from
--- `created` to `processed` or `disabled` within ~1 second). This single update
--- happens well before the 7-day compression window, so UPDATE on uncompressed
--- chunks works without issues.
---
--- No FK constraints reference enforcement(id) — execution.enforcement was
--- created as a plain BIGINT in migration 000005.
--- ----------------------------------------------------------------------------
-
-ALTER TABLE enforcement DROP CONSTRAINT enforcement_pkey;
-ALTER TABLE enforcement ADD PRIMARY KEY (id, created);
-
-SELECT create_hypertable('enforcement', 'created',
-    chunk_time_interval => INTERVAL '1 day',
-    migrate_data        => true);
-
-COMMENT ON TABLE enforcement IS 'Enforcements represent rule triggering by events (TimescaleDB hypertable partitioned on created)';
-
--- ============================================================================
--- CONVERT EXECUTION TABLE TO HYPERTABLE
--- ============================================================================
--- Executions are updated ~4 times during their lifecycle (requested → scheduled
--- → running → completed/failed), completing within at most ~1 day — well before
--- the 7-day compression window. The `updated` column and its BEFORE UPDATE
--- trigger are preserved (used by timeout monitor and UI).
---
--- No FK constraints reference execution(id) — inquiry.execution,
--- workflow_execution.execution, execution.parent, and execution.original_execution
--- were all created as plain BIGINT columns in migrations 000005 and 000006.
---
--- The existing execution_history hypertable and its trigger are preserved —
--- they track field-level diffs of each update, which remains valuable for
--- a mutable table.
--- ----------------------------------------------------------------------------
-
-ALTER TABLE execution DROP CONSTRAINT execution_pkey;
-ALTER TABLE execution ADD PRIMARY KEY (id, created);
-
-SELECT create_hypertable('execution', 'created',
-    chunk_time_interval => INTERVAL '1 day',
-    migrate_data        => true);
-
-COMMENT ON TABLE execution IS 'Executions represent action runs with workflow support (TimescaleDB hypertable partitioned on created). Updated ~4 times during lifecycle, completing within ~1 day (well before 7-day compression window).';
+COMMENT ON TABLE enforcement IS 'Enforcements represent rule triggering by events';
+COMMENT ON TABLE execution IS 'Executions represent action runs with workflow support. History and analytics are stored in execution_history.';
 
 -- ============================================================================
 -- TRIGGER FUNCTIONS
@@ -410,22 +366,6 @@ ALTER TABLE event SET (
 );
 SELECT add_compression_policy('event', INTERVAL '7 days');
 
--- Enforcement table (hypertable)
-ALTER TABLE enforcement SET (
-    timescaledb.compress,
-    timescaledb.compress_segmentby = 'rule_ref',
-    timescaledb.compress_orderby = 'created DESC'
-);
-SELECT add_compression_policy('enforcement', INTERVAL '7 days');
-
--- Execution table (hypertable)
-ALTER TABLE execution SET (
-    timescaledb.compress,
-    timescaledb.compress_segmentby = 'action_ref',
-    timescaledb.compress_orderby = 'created DESC'
-);
-SELECT add_compression_policy('execution', INTERVAL '7 days');
-
 -- ============================================================================
 -- RETENTION POLICIES
 -- ============================================================================
@@ -433,8 +373,6 @@ SELECT add_compression_policy('execution', INTERVAL '7 days');
 SELECT add_retention_policy('execution_history', INTERVAL '90 days');
 SELECT add_retention_policy('worker_history', INTERVAL '180 days');
 SELECT add_retention_policy('event', INTERVAL '90 days');
-SELECT add_retention_policy('enforcement', INTERVAL '90 days');
-SELECT add_retention_policy('execution', INTERVAL '90 days');
 
 -- ============================================================================
 -- CONTINUOUS AGGREGATES
@@ -449,6 +387,8 @@ DROP MATERIALIZED VIEW IF EXISTS event_volume_hourly CASCADE;
 DROP MATERIALIZED VIEW IF EXISTS worker_status_hourly CASCADE;
 DROP MATERIALIZED VIEW IF EXISTS enforcement_volume_hourly CASCADE;
 DROP MATERIALIZED VIEW IF EXISTS execution_volume_hourly CASCADE;
+DROP VIEW IF EXISTS enforcement_volume_hourly CASCADE;
+DROP VIEW IF EXISTS execution_volume_hourly CASCADE;
 
 -- ----------------------------------------------------------------------------
 -- execution_status_hourly
@@ -553,49 +493,35 @@ SELECT add_continuous_aggregate_policy('worker_status_hourly',
 --       instead of a separate enforcement_history table.
 -- ----------------------------------------------------------------------------
 
-CREATE MATERIALIZED VIEW enforcement_volume_hourly
-WITH (timescaledb.continuous) AS
+CREATE VIEW enforcement_volume_hourly AS
 SELECT
-    time_bucket('1 hour', created) AS bucket,
+    date_trunc('hour', created) AS bucket,
     rule_ref,
     COUNT(*) AS enforcement_count
 FROM enforcement
 GROUP BY bucket, rule_ref
-WITH NO DATA;
-
-SELECT add_continuous_aggregate_policy('enforcement_volume_hourly',
-    start_offset    => INTERVAL '7 days',
-    end_offset      => INTERVAL '1 hour',
-    schedule_interval => INTERVAL '30 minutes'
-);
+;
 
 -- ----------------------------------------------------------------------------
 -- execution_volume_hourly
 -- Tracks execution creation volume per hour by action_ref and status.
--- This queries the execution hypertable directly (like event_volume_hourly
--- queries the event table). Complements the existing execution_status_hourly
--- and execution_throughput_hourly aggregates which query execution_history.
+-- This queries the execution table directly. Complements the existing
+-- execution_status_hourly and execution_throughput_hourly aggregates which
+-- query execution_history.
 --
 -- Use case: direct execution volume monitoring without relying on the history
 -- trigger (belt-and-suspenders, plus captures the initial status at creation).
 -- ----------------------------------------------------------------------------
 
-CREATE MATERIALIZED VIEW execution_volume_hourly
-WITH (timescaledb.continuous) AS
+CREATE VIEW execution_volume_hourly AS
 SELECT
-    time_bucket('1 hour', created) AS bucket,
+    date_trunc('hour', created) AS bucket,
     action_ref,
     status AS initial_status,
     COUNT(*) AS execution_count
 FROM execution
 GROUP BY bucket, action_ref, status
-WITH NO DATA;
-
-SELECT add_continuous_aggregate_policy('execution_volume_hourly',
-    start_offset    => INTERVAL '7 days',
-    end_offset      => INTERVAL '1 hour',
-    schedule_interval => INTERVAL '30 minutes'
-);
+;
 
 -- ============================================================================
 -- INITIAL REFRESH NOTE

migrations/20250101000010_artifact_content.sql

@@ -26,7 +26,7 @@ ALTER TABLE artifact ADD COLUMN IF NOT EXISTS content_type TEXT;
 -- Total size in bytes of the latest version's content (NULL for progress artifacts)
 ALTER TABLE artifact ADD COLUMN IF NOT EXISTS size_bytes BIGINT;
 
--- Execution that produced/owns this artifact (plain BIGINT, no FK — execution is a hypertable)
+-- Execution that produced/owns this artifact (plain BIGINT, no FK by design)
 ALTER TABLE artifact ADD COLUMN IF NOT EXISTS execution BIGINT;
 
 -- Structured data for progress-type artifacts and small structured payloads.
@@ -52,7 +52,7 @@ COMMENT ON COLUMN artifact.name IS 'Human-readable artifact name';
 COMMENT ON COLUMN artifact.description IS 'Optional description of the artifact';
 COMMENT ON COLUMN artifact.content_type IS 'MIME content type (e.g. application/json, text/plain)';
 COMMENT ON COLUMN artifact.size_bytes IS 'Size of latest version content in bytes';
-COMMENT ON COLUMN artifact.execution IS 'Execution that produced this artifact (no FK — execution is a hypertable)';
+COMMENT ON COLUMN artifact.execution IS 'Execution that produced this artifact (no FK by design)';
 COMMENT ON COLUMN artifact.data IS 'Structured JSONB data for progress artifacts or metadata';
 COMMENT ON COLUMN artifact.visibility IS 'Access visibility: public (all users) or private (scope/owner-restricted)';