64 lines
2.2 KiB
SQL
64 lines
2.2 KiB
SQL
SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;
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-- 两列都是短 VARCHAR；线上使用 INPLACE/LOCK=NONE，避免跨 App 接入时阻塞现有 Lalu 提现写入。
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SET @source_system_exists = (
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SELECT COUNT(*)
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'admin_user_withdrawal_applications'
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AND COLUMN_NAME = 'source_system'
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);
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SET @source_system_ddl = IF(
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@source_system_exists = 0,
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'ALTER TABLE admin_user_withdrawal_applications ADD COLUMN source_system VARCHAR(32) NOT NULL DEFAULT ''hyapp_wallet'' AFTER app_code, ALGORITHM=INPLACE, LOCK=NONE',
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'SELECT 1'
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);
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PREPARE stmt FROM @source_system_ddl;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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SET @source_application_id_exists = (
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SELECT COUNT(*)
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'admin_user_withdrawal_applications'
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AND COLUMN_NAME = 'source_application_id'
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);
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SET @source_application_id_ddl = IF(
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@source_application_id_exists = 0,
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'ALTER TABLE admin_user_withdrawal_applications ADD COLUMN source_application_id VARCHAR(128) NOT NULL DEFAULT '''' AFTER source_system, ALGORITHM=INPLACE, LOCK=NONE',
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'SELECT 1'
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);
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PREPARE stmt FROM @source_application_id_ddl;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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-- 存量 Lalu 单使用已经唯一的 freeze_command_id 作为来源单号，确保新增唯一索引不会发生空值碰撞。
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UPDATE admin_user_withdrawal_applications
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SET source_system = 'hyapp_wallet',
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source_application_id = freeze_command_id
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WHERE source_application_id = '';
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SET @source_index_exists = (
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SELECT COUNT(*)
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FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'admin_user_withdrawal_applications'
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AND INDEX_NAME = 'uk_admin_withdrawal_source_application'
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);
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-- 唯一索引同时承担来源重试的幂等查找；列选择性高，不增加列表查询扫描成本。
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SET @source_index_ddl = IF(
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@source_index_exists = 0,
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'ALTER TABLE admin_user_withdrawal_applications ADD UNIQUE KEY uk_admin_withdrawal_source_application (app_code, source_system, source_application_id), ALGORITHM=INPLACE, LOCK=NONE',
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'SELECT 1'
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);
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PREPARE stmt FROM @source_index_ddl;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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