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222
optimize_existing_global_config.sql
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222
optimize_existing_global_config.sql
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-- ===================================================================
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-- 基于现有 ak_global_config 表的优化查询函数
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-- 保持现有表结构，添加便捷的多语言查询支持
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-- ===================================================================
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-- 1. 为现有表添加分类字段（可选）
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-- ALTER TABLE public.ak_global_config ADD COLUMN IF NOT EXISTS config_category VARCHAR(50) DEFAULT 'general';
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-- CREATE INDEX IF NOT EXISTS idx_ak_global_config_category ON public.ak_global_config(config_category);
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-- 2. 创建便捷的多语言配置查询函数
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CREATE OR REPLACE FUNCTION get_global_config_by_language(
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p_language_code VARCHAR(10) DEFAULT 'zh'
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) RETURNS TABLE (
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config_key VARCHAR(100),
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config_value TEXT,
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config_type VARCHAR(50),
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description TEXT,
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base_key VARCHAR(100)
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) AS $$
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DECLARE
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lang_suffix TEXT;
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BEGIN
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-- 根据语言代码确定后缀
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CASE p_language_code
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WHEN 'zh' THEN lang_suffix := '_zh';
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WHEN 'en' THEN lang_suffix := '_en';
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WHEN 'tw' THEN lang_suffix := '_tw';
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WHEN 'ja' THEN lang_suffix := '_ja';
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ELSE lang_suffix := '_zh'; -- 默认中文
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END CASE;
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RETURN QUERY
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SELECT
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gc.config_key,
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gc.config_value,
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gc.config_type,
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gc.description,
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-- 提取基础key（去掉语言后缀）
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CASE
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WHEN gc.config_key LIKE '%_zh' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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WHEN gc.config_key LIKE '%_en' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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WHEN gc.config_key LIKE '%_tw' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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WHEN gc.config_key LIKE '%_ja' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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ELSE gc.config_key
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END AS base_key
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FROM public.ak_global_config gc
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WHERE gc.is_active = true
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AND (
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gc.config_key LIKE '%' || lang_suffix
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OR gc.config_key NOT LIKE '%_zh'
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AND gc.config_key NOT LIKE '%_en'
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AND gc.config_key NOT LIKE '%_tw'
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AND gc.config_key NOT LIKE '%_ja'
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)
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ORDER BY gc.config_key;
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END;
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$$ LANGUAGE plpgsql;
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-- 3. 获取单个配置值的函数
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CREATE OR REPLACE FUNCTION get_global_config_value(
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p_base_key VARCHAR(100),
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p_language_code VARCHAR(10) DEFAULT 'zh'
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) RETURNS TEXT AS $$
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DECLARE
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lang_suffix TEXT;
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config_value TEXT;
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BEGIN
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-- 根据语言代码确定后缀
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CASE p_language_code
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WHEN 'zh' THEN lang_suffix := '_zh';
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WHEN 'en' THEN lang_suffix := '_en';
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WHEN 'tw' THEN lang_suffix := '_tw';
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WHEN 'ja' THEN lang_suffix := '_ja';
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ELSE lang_suffix := '_zh';
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END CASE;
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-- 先尝试获取带语言后缀的配置
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SELECT gc.config_value INTO config_value
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FROM public.ak_global_config gc
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WHERE gc.config_key = p_base_key || lang_suffix
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AND gc.is_active = true;
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-- 如果没找到，尝试获取不带后缀的配置（通用配置）
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IF config_value IS NULL THEN
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SELECT gc.config_value INTO config_value
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FROM public.ak_global_config gc
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WHERE gc.config_key = p_base_key
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AND gc.is_active = true;
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END IF;
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-- 如果还是没找到，尝试获取中文版本作为默认
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IF config_value IS NULL AND lang_suffix != '_zh' THEN
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SELECT gc.config_value INTO config_value
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FROM public.ak_global_config gc
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WHERE gc.config_key = p_base_key || '_zh'
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AND gc.is_active = true;
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END IF;
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RETURN config_value;
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END;
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$$ LANGUAGE plpgsql;
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-- 4. 获取公司信息的便捷函数
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CREATE OR REPLACE FUNCTION get_company_config(
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p_language_code VARCHAR(10) DEFAULT 'zh'
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) RETURNS TABLE (
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company_name TEXT,
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company_slogan TEXT,
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company_address TEXT,
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company_phone TEXT,
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company_email TEXT,
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company_icp TEXT,
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company_logo_url TEXT
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) AS $$
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BEGIN
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RETURN QUERY
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SELECT
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get_global_config_value('company_name', p_language_code),
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get_global_config_value('company_slogan', p_language_code),
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get_global_config_value('company_address', p_language_code),
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get_global_config_value('company_phone', p_language_code),
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get_global_config_value('company_email', p_language_code),
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get_global_config_value('company_icp', p_language_code),
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get_global_config_value('company_logo_url', p_language_code);
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END;
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$$ LANGUAGE plpgsql;
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-- 5. 获取热门搜索关键词的函数
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CREATE OR REPLACE FUNCTION get_hot_search_keywords(
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p_language_code VARCHAR(10) DEFAULT 'zh'
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) RETURNS TABLE (
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search_term TEXT,
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sort_order INTEGER
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) AS $$
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BEGIN
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RETURN QUERY
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SELECT
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get_global_config_value('hot_search_' || generate_series, p_language_code) AS search_term,
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generate_series AS sort_order
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FROM generate_series(1, 5)
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WHERE get_global_config_value('hot_search_' || generate_series, p_language_code) IS NOT NULL;
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END;
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$$ LANGUAGE plpgsql;
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-- 6. 获取社交媒体链接的函数
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CREATE OR REPLACE FUNCTION get_social_media_config(
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p_language_code VARCHAR(10) DEFAULT 'zh'
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) RETURNS TABLE (
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wechat_url TEXT,
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weibo_url TEXT,
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qq_url TEXT,
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linkedin_url TEXT,
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twitter_url TEXT
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) AS $$
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BEGIN
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RETURN QUERY
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SELECT
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get_global_config_value('social_wechat_url', p_language_code),
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get_global_config_value('social_weibo_url', p_language_code),
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get_global_config_value('social_qq_url', p_language_code),
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get_global_config_value('social_linkedin_url', p_language_code),
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get_global_config_value('social_twitter_url', p_language_code);
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END;
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$$ LANGUAGE plpgsql;
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-- 7. 创建优化的配置视图
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CREATE OR REPLACE VIEW public.vw_global_config_by_language AS
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SELECT
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gc.config_key,
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gc.config_value,
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gc.config_type,
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gc.description,
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gc.is_active,
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-- 提取语言代码
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CASE
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WHEN gc.config_key LIKE '%_zh' THEN 'zh'
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WHEN gc.config_key LIKE '%_en' THEN 'en'
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WHEN gc.config_key LIKE '%_tw' THEN 'tw'
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WHEN gc.config_key LIKE '%_ja' THEN 'ja'
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ELSE 'common' -- 无语言后缀的通用配置
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END AS language_code,
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-- 提取基础配置键
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CASE
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WHEN gc.config_key LIKE '%_zh' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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WHEN gc.config_key LIKE '%_en' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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WHEN gc.config_key LIKE '%_tw' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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WHEN gc.config_key LIKE '%_ja' THEN LEFT(gc.config_key, LENGTH(gc.config_key) - 3)
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ELSE gc.config_key
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END AS base_key,
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-- 配置分类（基于键名推断）
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CASE
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WHEN gc.config_key LIKE 'company_%' THEN 'company'
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WHEN gc.config_key LIKE 'social_%' THEN 'social'
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WHEN gc.config_key LIKE 'hot_search_%' THEN 'search'
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ELSE 'general'
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END AS config_category
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FROM public.ak_global_config gc
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WHERE gc.is_active = true;
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-- 8. 添加函数注释
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COMMENT ON FUNCTION get_global_config_by_language IS '获取指定语言的全局配置（基于现有表结构）';
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COMMENT ON FUNCTION get_global_config_value IS '获取单个配置值，支持语言回退';
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COMMENT ON FUNCTION get_company_config IS '获取公司信息配置';
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COMMENT ON FUNCTION get_hot_search_keywords IS '获取热门搜索关键词';
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COMMENT ON FUNCTION get_social_media_config IS '获取社交媒体配置';
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COMMENT ON VIEW vw_global_config_by_language IS '按语言分组的全局配置视图';
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-- 9. 测试查询示例
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DO $$
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BEGIN
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RAISE NOTICE '========================================';
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RAISE NOTICE '基于现有表结构的优化查询函数已创建！';
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RAISE NOTICE '========================================';
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RAISE NOTICE '使用示例：';
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RAISE NOTICE '-- 获取中文配置：SELECT * FROM get_global_config_by_language(''zh'');';
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RAISE NOTICE '-- 获取公司名称：SELECT get_global_config_value(''company_name'', ''zh'');';
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RAISE NOTICE '-- 获取公司信息：SELECT * FROM get_company_config(''zh'');';
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RAISE NOTICE '-- 获取热门搜索：SELECT * FROM get_hot_search_keywords(''zh'');';
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RAISE NOTICE '-- 查看配置视图：SELECT * FROM vw_global_config_by_language WHERE language_code = ''zh'';';
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RAISE NOTICE '========================================';
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END
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$$;
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