*: stabilize integrationtest stale read timestamp (#65953)

close #65952

Author: wjhuang2016

tests/integrationtest/r/executor/index_lookup_pushdown.result

@@ -512,29 +512,29 @@ IndexLookUp_7	10000.00	root
 │ └─TableRowIDScan_8(Probe)	10000.00	cop[tikv]	table:t1	keep order:false, stats:pseudo
 └─TableRowIDScan_6(Probe)	0.00	cop[tikv]	table:t1	keep order:false, stats:pseudo
 do sleep(0.1);
-explain select /*+ index_lookup_pushdown(t1, i) */ * from t1 as of timestamp NOW(6) - interval 0.05 second;
+explain select /*+ index_lookup_pushdown(t1, i) */ * from t1 as of timestamp NOW(6) - interval 0.1 second;
 id	estRows	task	access object	operator info
 TableReader_6	10000.00	root		data:TableFullScan_5
 └─TableFullScan_5	10000.00	cop[tikv]	table:t1	keep order:false, stats:pseudo
 Level	Code	Message
 Warning	1815	hint INDEX_LOOKUP_PUSHDOWN is inapplicable, stale read is not supported
-start transaction read only as of timestamp now(6) - interval 0.05 second;
+start transaction read only as of timestamp now(6) - interval 0.1 second;
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 id	estRows	task	access object	operator info
 TableReader_6	10000.00	root		data:TableFullScan_5
 └─TableFullScan_5	10000.00	cop[tikv]	table:t1	keep order:false, stats:pseudo
 Level	Code	Message
 Warning	1815	hint INDEX_LOOKUP_PUSHDOWN is inapplicable, stale read is not supported
 rollback;
-set transaction read only as of timestamp now(6) - interval 0.05 second;
+set transaction read only as of timestamp now(6) - interval 0.1 second;
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 id	estRows	task	access object	operator info
 TableReader_6	10000.00	root		data:TableFullScan_5
 └─TableFullScan_5	10000.00	cop[tikv]	table:t1	keep order:false, stats:pseudo
 Level	Code	Message
 Warning	1815	hint INDEX_LOOKUP_PUSHDOWN is inapplicable, stale read is not supported
 insert ignore into mysql.tidb VALUES ('tikv_gc_safe_point', '20240131-00:00:00.000 +0800', 'mock for index lookup push down test');
-set @@tidb_snapshot=(now(6) - interval 0.05 second);
+set @@tidb_snapshot=(now(6) - interval 0.1 second);
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 id	estRows	task	access object	operator info
 TableReader_6	10000.00	root		data:TableFullScan_5

tests/integrationtest/r/executor/stale_txn.result

@@ -1,4 +1,4 @@
-select * from information_schema.ddl_jobs as of timestamp now(6) - interval 1 microsecond;
+select * from information_schema.ddl_jobs as of timestamp now(6) - interval 0.1 second;
 drop table if exists t1;
 create table t1 (id int primary key, v int);
 insert into t1 values(1, 10);

tests/integrationtest/t/executor/index_lookup_pushdown.test

@@ -173,17 +173,17 @@ set @@tidb_replica_read='leader';
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 ## stale read is not supported
 do sleep(0.1);
-explain select /*+ index_lookup_pushdown(t1, i) */ * from t1 as of timestamp NOW(6) - interval 0.05 second;
-start transaction read only as of timestamp now(6) - interval 0.05 second;
+explain select /*+ index_lookup_pushdown(t1, i) */ * from t1 as of timestamp NOW(6) - interval 0.1 second;
+start transaction read only as of timestamp now(6) - interval 0.1 second;
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 rollback;
-set transaction read only as of timestamp now(6) - interval 0.05 second;
+set transaction read only as of timestamp now(6) - interval 0.1 second;
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 ## historical read is not supported
 --disable_warnings
 insert ignore into mysql.tidb VALUES ('tikv_gc_safe_point', '20240131-00:00:00.000 +0800', 'mock for index lookup push down test');
 --enable_warnings
-set @@tidb_snapshot=(now(6) - interval 0.05 second);
+set @@tidb_snapshot=(now(6) - interval 0.1 second);
 explain select /*+ index_lookup_pushdown(t1, i) */ * from t1;
 set @@tidb_snapshot='';
 delete from mysql.tidb where VARIABLE_NAME='tikv_gc_safe_point' and COMMENT='mock for index lookup push down test';

tests/integrationtest/t/executor/stale_txn.test

@@ -1,7 +1,7 @@
 # TestIssue35686
 ## This query should not panic
 --disable_result_log
-select * from information_schema.ddl_jobs as of timestamp now(6) - interval 1 microsecond;
+select * from information_schema.ddl_jobs as of timestamp now(6) - interval 0.1 second;
 --enable_result_log
 
 # TestIssue31954