Merge #152743

152743: sql: fix a flake in TestSavepoints r=mw5h a=yuzefovich

The test can have a flake with txnWriteBuffer buffer size in certain range, and when working on eec520b I only tried very small values like 1-3B, so I didn't catch this flake. (Additionally, that commit reduced the range of allowed values making the flake much more likely.) Require 2KiB buffer size minimum to de-flake it.

Fixes: #152039.

Release note: None

Co-authored-by: Yahor Yuzefovich <[email protected]>

Author: craig[bot]

pkg/sql/conn_executor_savepoints_test.go

@@ -33,6 +33,9 @@ func TestSavepoints(t *testing.T) {
 		s, origConn, _ := serverutils.StartServer(t, params)
 		defer s.Stopper().Stop(ctx)
 
+		if _, err := origConn.Exec(`SET CLUSTER SETTING kv.transaction.write_buffering.max_buffer_size = '2KiB';`); err != nil {
+			t.Fatal(err)
+		}
 		if _, err := origConn.Exec(`CREATE TABLE progress(
       conn STRING,
     	n INT,