diff --git a/db/99pigxx_bi.sql b/db/99pigxx_bi.sql
index b7ab91d2b..cd5c819a0 100644
--- a/db/99pigxx_bi.sql
+++ b/db/99pigxx_bi.sql
@@ -8,20 +8,20 @@ SET FOREIGN_KEY_CHECKS = 0;
 -- ----------------------------
 DROP TABLE IF EXISTS `chat2bi_table_meta`;
 CREATE TABLE `chat2bi_table_meta`  (
-  `id` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '主键',
-  `db_source_type` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '数据源来源表标识, 如: db_source / api_source / file_source / system_source',
-  `db_source_id` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '对应来源表的主键ID',
-  `schema_name` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL COMMENT 'Schema名',
-  `table_name` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '表名',
-  `source_comment` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL COMMENT '表注释-源(同步写入, 每次同步覆盖)',
-  `table_comment` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL COMMENT '表注释-用户(用户手动填写, 同步不覆盖)',
-  `columns_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '列定义[{name,type,source_comment,comment,is_primary,sample_values,nulltable}]',
-  `relations_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL COMMENT '关联关系[{column,ref_table,ref_column,type}]',
+  `id` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '主键',
+  `db_source_type` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '数据源来源表标识, 如: db_source / api_source / file_source / system_source',
+  `db_source_id` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '对应来源表的主键ID',
+  `schema_name` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT 'Schema名',
+  `table_name` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '表名',
+  `source_comment` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '表注释-源(同步写入, 每次同步覆盖)',
+  `table_comment` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '表注释-用户(用户手动填写, 同步不覆盖)',
+  `columns_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '列定义[{name,type,source_comment,comment,is_primary,sample_values,nulltable}]',
+  `relations_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL COMMENT '关联关系[{column,ref_table,ref_column,type}]',
   `is_enabled` tinyint(4) NOT NULL DEFAULT 1 COMMENT '对LLM可见: 0=否 1=是',
   `synced_time` datetime NULL DEFAULT NULL COMMENT '最近同步时间',
-  `create_by` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '创建人',
+  `create_by` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '创建人',
   `create_time` datetime NULL DEFAULT NULL COMMENT '创建时间',
-  `update_by` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '更新人',
+  `update_by` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '更新人',
   `update_time` datetime NULL DEFAULT NULL COMMENT '更新时间',
   `tenant_id` int(11) NULL DEFAULT NULL COMMENT '多租户标识',
   PRIMARY KEY (`id`) USING BTREE,
@@ -30,7 +30,7 @@ CREATE TABLE `chat2bi_table_meta`  (
   INDEX `idx_table_name`(`table_name`) USING BTREE,
   INDEX `idx_table_name_comment`(`table_name`, `source_comment`(320), `table_comment`(320)) USING BTREE,
   INDEX `idx_table_comment`(`table_comment`) USING BTREE
-) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci COMMENT = '表元数据(同步+手动维护, 支持多数据源表)' ROW_FORMAT = DYNAMIC;
+) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '表元数据(同步+手动维护, 支持多数据源表)' ROW_FORMAT = DYNAMIC;
 
 -- ----------------------------
 -- Table structure for huiyuan_age