diff --git a/backend-java/src/main/resources/db/V90__dedupe_total_data_country.sql b/backend-java/src/main/resources/db/V90__dedupe_total_data_country.sql
deleted file mode 100644
index 2d43deed..00000000
--- a/backend-java/src/main/resources/db/V90__dedupe_total_data_country.sql
+++ /dev/null
@@ -1,33 +0,0 @@
-SET @country_col_exists := (
-    SELECT COUNT(*)
-    FROM information_schema.COLUMNS
-    WHERE TABLE_SCHEMA = DATABASE()
-      AND TABLE_NAME = 'biz_dedupe_total_data'
-      AND COLUMN_NAME = 'country'
-);
-
-SET @sql_add_country := IF(
-    @country_col_exists = 0,
-    'ALTER TABLE biz_dedupe_total_data ADD COLUMN country VARCHAR(64) DEFAULT NULL COMMENT ''国家代码，逗号分隔，如 DE,UK'' AFTER data_value',
-    'SELECT 1'
-);
-PREPARE stmt_add_country FROM @sql_add_country;
-EXECUTE stmt_add_country;
-DEALLOCATE PREPARE stmt_add_country;
-
-SET @country_idx_exists := (
-    SELECT COUNT(*)
-    FROM information_schema.STATISTICS
-    WHERE TABLE_SCHEMA = DATABASE()
-      AND TABLE_NAME = 'biz_dedupe_total_data'
-      AND INDEX_NAME = 'idx_country'
-);
-
-SET @sql_add_country_idx := IF(
-    @country_idx_exists = 0,
-    'ALTER TABLE biz_dedupe_total_data ADD INDEX idx_country (country)',
-    'SELECT 1'
-);
-PREPARE stmt_add_country_idx FROM @sql_add_country_idx;
-EXECUTE stmt_add_country_idx;
-DEALLOCATE PREPARE stmt_add_country_idx;