task-76: JSON owner 查询迁移到显式列并补充任务/状态复合索引

2026-08-30 20:51:07 +08:00
parent e9ba3689ba
commit 04f45bebec
4 changed files with 324 additions and 10 deletions
@@ -0,0 +1,41 @@
+-- Task 76：biz_task_file_job 增加显式 owner 列并补充 (module_type, owner, status, retry_count) 复合索引。
+-- owner 从 scope_key 的 ":owner:" 标记提取（task:1:owner:instance-a → instance-a），
+-- 存量行回填，owner 等值查询不再依赖 LIKE '%:owner:%' 扫描。
+
+SET @db_name = DATABASE();
+
+SET @col_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = @db_name
+    AND TABLE_NAME = 'biz_task_file_job'
+    AND COLUMN_NAME = 'owner'
+);
+SET @sql := IF(@col_exists = 0,
+  'ALTER TABLE biz_task_file_job ADD COLUMN owner VARCHAR(128) NULL COMMENT ''explicit owner extracted from scope_key'' AFTER scope_key',
+  'SELECT 1'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+UPDATE biz_task_file_job
+SET owner = SUBSTRING(scope_key, LOCATE(':owner:', scope_key) + 7)
+WHERE owner IS NULL
+  AND scope_key IS NOT NULL
+  AND LOCATE(':owner:', scope_key) > 0;
+
+SET @idx_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.STATISTICS
+  WHERE TABLE_SCHEMA = @db_name
+    AND TABLE_NAME = 'biz_task_file_job'
+    AND INDEX_NAME = 'idx_file_job_module_owner_status_retry'
+);
+SET @sql := IF(@idx_exists = 0,
+  'ALTER TABLE biz_task_file_job ADD INDEX idx_file_job_module_owner_status_retry (module_type, owner, status, retry_count)',
+  'SELECT 1'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;