feat: add index to some metadb tables

server/controller/db/metadb/migrator/schema/const.go

@@ -20,5 +20,5 @@ const (
 	RAW_SQL_ROOT_DIR = "/etc/metadb/schema/rawsql"
 
 	DB_VERSION_TABLE    = "db_version"
-	DB_VERSION_EXPECTED = "6.6.1.67"
+	DB_VERSION_EXPECTED = "6.6.1.68"
 )

server/controller/db/metadb/migrator/schema/rawsql/mysql/ddl_create_table.sql

@@ -1123,7 +1123,8 @@ CREATE TABLE IF NOT EXISTS pod_group (
     updated_at          DATETIME NOT NULL ON UPDATE CURRENT_TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     deleted_at          DATETIME DEFAULT NULL,
     INDEX pod_namespace_id_index(pod_namespace_id),
-    INDEX pod_cluster_id_index(pod_cluster_id)
+    INDEX pod_cluster_id_index(pod_cluster_id),
+    INDEX lcuuid_index(lcuuid)
 ) ENGINE=innodb AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
 TRUNCATE TABLE pod_group;
 
@@ -1138,7 +1139,8 @@ CREATE TABLE IF NOT EXISTS pod_group_port (
     domain              CHAR(64) DEFAULT '',
     lcuuid              CHAR(64) DEFAULT '',
     created_at          DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    updated_at          DATETIME NOT NULL ON UPDATE CURRENT_TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    updated_at          DATETIME NOT NULL ON UPDATE CURRENT_TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    INDEX lcuuid_index(lcuuid)
 ) ENGINE=innodb AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
 TRUNCATE TABLE pod_group_port;
 
@@ -1198,7 +1200,8 @@ CREATE TABLE IF NOT EXISTS pod (
     INDEX epc_id_index(epc_id),
     INDEX az_index(az),
     INDEX region_index(region),
-    INDEX domain_index(domain)
+    INDEX domain_index(domain),
+    INDEX lcuuid_index(lcuuid)
 ) ENGINE=innodb AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
 TRUNCATE TABLE pod;
 
@@ -1264,7 +1267,8 @@ CREATE TABLE IF NOT EXISTS process (
     updated_at          DATETIME NOT NULL ON UPDATE CURRENT_TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     deleted_at          DATETIME DEFAULT NULL,
     INDEX domain_sub_domain_gid_updated_at_index(domain, sub_domain, gid, updated_at DESC),
-    INDEX deleted_at_index(deleted_at)
+    INDEX deleted_at_index(deleted_at),
+    INDEX lcuuid_index(lcuuid)
 ) ENGINE=innodb DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;
 TRUNCATE TABLE process;
 

server/controller/db/metadb/migrator/schema/rawsql/mysql/issu/6.6.1.68.sql

@@ -0,0 +1,35 @@
+DROP PROCEDURE IF EXISTS AddIndexIfNotExists;
+
+CREATE PROCEDURE AddIndexIfNotExists(
+    IN tableName VARCHAR(255),
+    IN indexName VARCHAR(255),
+    IN indexCol VARCHAR(255)
+)
+BEGIN
+    DECLARE index_count INT;
+
+    -- check if index exists on the target column (regardless of index name)
+    SELECT COUNT(*)
+    INTO index_count
+    FROM information_schema.statistics
+    WHERE table_schema = DATABASE()
+    AND table_name = tableName
+    AND column_name = indexCol;
+
+    -- if no index on this column, add index
+    IF index_count = 0 THEN
+        SET @sql = CONCAT('ALTER TABLE ', tableName, ' ADD INDEX ', indexName, ' (', indexCol, ') USING BTREE');
+        PREPARE stmt FROM @sql;
+        EXECUTE stmt;
+        DEALLOCATE PREPARE stmt;
+    END IF;
+END;
+
+CALL AddIndexIfNotExists('pod', 'lcuuid_index', 'lcuuid');
+CALL AddIndexIfNotExists('pod_group', 'lcuuid_index', 'lcuuid');
+CALL AddIndexIfNotExists('pod_group_port', 'lcuuid_index', 'lcuuid');
+CALL AddIndexIfNotExists('process', 'lcuuid_index', 'lcuuid');
+
+DROP PROCEDURE AddIndexIfNotExists;
+
+UPDATE db_version SET version='6.6.1.68';