7a0de02059
Add crosspoll_state table to persist per-island generation counters across evolver restarts. Load state on startup and save after each cross-pollination check. Add persistence pattern and translation structure tests. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
70 lines
2.7 KiB
Go
70 lines
2.7 KiB
Go
// Package db provides database access for the evolution pipeline.
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package db
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import (
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"context"
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"database/sql"
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)
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// schemaSQL creates the programs and validation_log tables with their indexes.
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const schemaSQL = `
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CREATE TABLE IF NOT EXISTS programs (
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id BIGSERIAL PRIMARY KEY,
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code TEXT NOT NULL,
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language VARCHAR(32) NOT NULL,
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island VARCHAR(16) NOT NULL,
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generation INTEGER NOT NULL DEFAULT 0,
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parent_ids JSONB NOT NULL DEFAULT '[]',
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behavior_vector DOUBLE PRECISION[] NOT NULL DEFAULT '{}',
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fitness DOUBLE PRECISION NOT NULL DEFAULT 0.0,
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promoted BOOLEAN NOT NULL DEFAULT FALSE,
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bot_id VARCHAR(16),
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_programs_island ON programs(island);
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CREATE INDEX IF NOT EXISTS idx_programs_island_fitness ON programs(island, fitness DESC);
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CREATE TABLE IF NOT EXISTS validation_log (
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id BIGSERIAL PRIMARY KEY,
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island VARCHAR(16) NOT NULL,
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language VARCHAR(32) NOT NULL,
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stage VARCHAR(16) NOT NULL, -- last stage attempted: syntax / schema / sandbox
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passed BOOLEAN NOT NULL,
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error_text TEXT NOT NULL DEFAULT '',
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llm_output TEXT NOT NULL DEFAULT '',
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_validation_log_island ON validation_log(island);
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CREATE INDEX IF NOT EXISTS idx_validation_log_island_passed ON validation_log(island, passed);
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`
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// crosspollStateSQL creates the crosspoll_state table for persisting per-island
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// last-pollinated generation numbers across evolver restarts.
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const crosspollStateSQL = `
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CREATE TABLE IF NOT EXISTS crosspoll_state (
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island VARCHAR(16) PRIMARY KEY,
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last_pollinated_gen INTEGER NOT NULL DEFAULT 0,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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`
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// migrationSQL holds additive migrations run after the base schema is ensured.
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// Each statement is idempotent (ALTER TABLE … ADD COLUMN IF NOT EXISTS).
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const migrationSQL = `
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ALTER TABLE programs ADD COLUMN IF NOT EXISTS bot_id VARCHAR(16);
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ALTER TABLE programs ADD COLUMN IF NOT EXISTS bot_name VARCHAR(64);
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ALTER TABLE programs ADD COLUMN IF NOT EXISTS bot_secret TEXT;
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`
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// EnsureSchema creates the programs and validation_log tables if they do not
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// already exist, then applies any pending additive migrations.
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func EnsureSchema(ctx context.Context, db *sql.DB) error {
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if _, err := db.ExecContext(ctx, schemaSQL); err != nil {
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return err
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}
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if _, err := db.ExecContext(ctx, crosspollStateSQL); err != nil {
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return err
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}
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_, err := db.ExecContext(ctx, migrationSQL)
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return err
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}
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