(cloud-merge) Fix the case timeout because the sql fetches too many d…

…atas (apache#33300)

regression-test/suites/cloud_p0/cache/ttl/alter_ttl_4.groovy

@@ -165,16 +165,18 @@ suite("alter_ttl_4") {
     load_customer_once("customer")
 
     sql """ ALTER TABLE customer_ttl SET ("file_cache_ttl_seconds"="3600") """
+    // wait for fetching new tablet meta in BE
     sleep(60000)
     // some datas in s3 and will download them
-    sql """ select C_CUSTKEY from customer_ttl"""
-    sql """ select C_NAME from customer_ttl"""
+    sql """ select C_CUSTKEY from customer_ttl order by C_CUSTKEY limit 1"""
+    sql """ select C_NAME from customer_ttl order by C_NAME limit 1"""
     sql """ select C_ADDRESS from customer_ttl order by C_ADDRESS limit 1"""
     sql """ select C_NATIONKEY from customer_ttl order by C_NATIONKEY limit 1"""
     sql """ select C_PHONE from customer_ttl order by C_PHONE limit 1 """
     sql """ select C_ACCTBAL from customer_ttl order by C_ACCTBAL limit 1"""
     sql """ select C_MKTSEGMENT from customer_ttl order by C_MKTSEGMENT limit 1"""
     sql """ select C_COMMENT from customer_ttl order by C_COMMENT limit 1"""
+    // wait for updating file cache metrics
     sleep(30000)
     getMetricsMethod.call() {
         respCode, body ->