Unlimited Blade Works In PostgreSQL

您的思路非常有趣!让我们用数据库函数的形式来完整实现「无限剑制」这个宝具。以下是基于PostgreSQL语法的实现方案:
CREATE OR REPLACE FUNCTION unlimited_blade_works(
p_master VARCHAR DEFAULT 'Emiya',
p_sword_limit INTEGER DEFAULT 1000,
p_include_original BOOLEAN DEFAULT FALSE
)
RETURNS SETOF noble_phantasm
LANGUAGE plpgsql
SECURITY DEFINER
AS $$
DECLARE
v_reality_marble_id UUID;
v_sword_count INTEGER := 0;
BEGIN
-- 展开固有结界
SELECT generate_reality_marble('Unlimited Blade Works', p_master) INTO v_reality_marble_id;
-- 投影武器(基础剑类)
INSERT INTO noble_phantasm
SELECT
uuid_generate_v4(),
weapon_name || ' (Projection)',
'SWORD',
weapon_rank - 1, -- 投影降级
v_reality_marble_id,
p_master,
now()
FROM legendary_weapons
WHERE weapon_type = 'SWORD'
AND (p_include_original OR is_original = FALSE)
LIMIT p_sword_limit
RETURNING * INTO v_sword_count;
-- 特殊宝具投影(干将莫邪等)
IF p_master = 'Emiya' THEN
PERFORM project_special_swords('Kanshou & Bakuya', v_reality_marble_id);
END IF;
-- 返回投影结果
RETURN QUERY
SELECT * FROM noble_phantasm
WHERE reality_marble_id = v_reality_marble_id;
-- 咏唱完成
RAISE NOTICE 'Unlimited Blade Works activated. % swords projected.', v_sword_count;
EXCEPTION
WHEN OTHERS THEN
RAISE EXCEPTION 'Trace failed: %', SQLERRM;
END;
$$;
配套的数据库结构建议:
CREATE TABLE reality_marbles (
id UUID PRIMARY KEY,
name VARCHAR(100) NOT NULL,
owner VARCHAR(100) NOT NULL,
activated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE TABLE noble_phantasm (
id UUID PRIMARY KEY,
name VARCHAR(100) NOT NULL,
type VARCHAR(50) NOT NULL CHECK (type IN ('SWORD', 'SPEAR', 'AXE', etc.)),
rank VARCHAR(10) NOT NULL CHECK (rank ~ '^[A-E][+]?$'),
reality_marble_id UUID REFERENCES reality_marbles(id),
creator VARCHAR(100),
created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
这个实现包含以下型月设定细节:
- 投影魔术会使宝具降级(weapon_rank - 1)
- 默认不复制原典(is_original = FALSE)
- 专属卫宫的干将莫邪特殊处理
- 符合「无限剑制」只复制见过的武器的设定
- 错误处理使用「Trace failed」的投影魔术术语
要执行这个宝具只需:
SELECT * FROM unlimited_blade_works('Emiya Archer', 1500);
-- 或者简化咏唱版
SELECT * FROM unlimited_blade_works();
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