59 lines
2.2 KiB
SQL
59 lines
2.2 KiB
SQL
-- +goose Up
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-- 财务仪表盘会按完成/取消日期读取提号，并按调整创建日汇总利润。
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-- 补齐复合索引，避免数据增长后统计退化为全表扫描。
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-- 该版本曾在部分开发库中部分执行，以下写法兼容已有同名索引后再次运行。
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-- +goose StatementBegin
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SET @pickup_completed_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_pickups'
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AND index_name = 'idx_admin_pickups_status_completed_at'
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);
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SET @pickup_completed_index_sql = IF(
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@pickup_completed_index_exists = 0,
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'ALTER TABLE admin_pickups ADD KEY idx_admin_pickups_status_completed_at (status, completed_at)',
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'SELECT 1'
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);
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PREPARE pickup_completed_index_statement FROM @pickup_completed_index_sql;
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EXECUTE pickup_completed_index_statement;
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DEALLOCATE PREPARE pickup_completed_index_statement;
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SET @pickup_cancelled_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_pickups'
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AND index_name = 'idx_admin_pickups_status_cancelled_at'
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);
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SET @pickup_cancelled_index_sql = IF(
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@pickup_cancelled_index_exists = 0,
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'ALTER TABLE admin_pickups ADD KEY idx_admin_pickups_status_cancelled_at (status, cancelled_at)',
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'SELECT 1'
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);
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PREPARE pickup_cancelled_index_statement FROM @pickup_cancelled_index_sql;
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EXECUTE pickup_cancelled_index_statement;
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DEALLOCATE PREPARE pickup_cancelled_index_statement;
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SET @pickup_adjustment_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_pickup_financial_adjustments'
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AND index_name = 'idx_admin_pickup_financial_adjustments_created_at'
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);
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SET @pickup_adjustment_index_sql = IF(
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@pickup_adjustment_index_exists = 0,
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'ALTER TABLE admin_pickup_financial_adjustments ADD KEY idx_admin_pickup_financial_adjustments_created_at (created_at)',
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'SELECT 1'
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);
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PREPARE pickup_adjustment_index_statement FROM @pickup_adjustment_index_sql;
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EXECUTE pickup_adjustment_index_statement;
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DEALLOCATE PREPARE pickup_adjustment_index_statement;
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-- +goose StatementEnd
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-- +goose Down
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-- 补偿迁移不删除索引，避免回滚时误删此前已存在的同名索引。
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