update cdc test

Signed-off-by: xxchan <[email protected]>

e2e_test/source_inline/cdc/mysql/mysql_create_drop.slt

@@ -40,6 +40,20 @@ create source s with (
 
 sleep 1s
 
+# At the beginning, the source is paused. It will resume after a downstream is created.
+system ok
+internal_table.mjs --name s --type '' --count
+----
+count: 0
+
+
+statement ok
+create table tt1_shared (v1 int,
+  v2 timestamptz,
+  PRIMARY KEY (v1)
+) from s table 'testdb1.tt1';
+
+sleep 1s
 # There's no data in upstream yet, but the offset is updated in the source executor via the heartbeat message.
 system ok
 internal_table.mjs --name s --type '' --count
@@ -116,12 +130,6 @@ create table tt5 (v1 int,
   table.name = 'tt5',
 );
 
-statement ok
-create table tt1_shared (v1 int,
-  v2 timestamptz,
-  PRIMARY KEY (v1)
-) from s table 'testdb1.tt1';
-
 statement ok
 create table tt2_shared (v1 int,
   v2 timestamptz,