Template del servicio de SIM

deployment/database/test.sql

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+CREATE TABLE sim_job_queue (
+    id          BIGINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+    job_type    TEXT NOT NULL,
+    sim_id      INT, -- NOT NULL??? 
+    payload     JSONB NOT NULL,
+    status      TEXT NOT NULL DEFAULT "pending", -- pasar a enum
+    priority    SMALLINT NOT NULL DEFAULT 100, -- trabajamos entre 200 y 0 para 0 la maxima prioridad
+    retry_count INT NOT NULL DEFAULT 0,
+    max_retries INT NOT NULL DEFAULT 3, -- lo definiria en runtime
+    scheduled_for   TIMESTAMP NOT NULL DEFAULT now(),
+    created_at      TIMESTAMP NOT NULL DEFAULT now(),
+    started_at      TIMESTAMP,
+    completed_at    TIMESTAMP,
+    error_msg       TEXT,
+
+    -- En teoria el check es mas flexible que el enum
+    CONSTRAINT valid_status CHECK (
+        status IN ('pending', 'processing', 'completed', 'failed', 'dead')
+    )
+
+    -- Revisar si interesa asociar cada trabajo a un id o permitir que sean independientes
+    CONSTRAINT fk_sim_id
+        FOREIGN KEY(sim_id) REFERENCES tableName(tarjetas_sim)
+)
+
+-- Indice de pendientes de consumir
+CREATE INDEX idx_job_fetch ON sim_job_queue (status, scheduled_for, priority DESC, created_at)
+  WHERE status = 'pending';
+
+-- Indice del resto de procesos
+CREATE INDEX idx_job_monitor ON sim_job_queue (job_type, status, created_at);