Problem for table creations when running against some non fresh started node

[jun0tpyrc]

Tried on different mainnet/testnet , when pruned subscan mysql to start against an already in sync rpc node

some calculation will make them just create table without those number before / the one without _{number} suffix

e.g.  just having these on testnet westend 

mysql> show tables;
+--------------------+
| Tables_in_subscan  |
+--------------------+
| chain_blocks_5     |
| chain_events_5     |
| chain_extrinsics_5 |
| chain_logs_5       |
| runtime_versions   |
+--------------------+

and these on mainnet 

mysql> show tables;
+--------------------+
| Tables_in_subscan  |
+--------------------+
| chain_blocks_7     |
| chain_events_7     |
| chain_extrinsics_7 |
| chain_logs_7      |
| runtime_versions   |
+--------------------+

api component will fail for

2021/08/19 15:31:48 start watch filepath: ../configs
panic: Error 1146: Table 'subscan.chain_blocks' doesn't exist

too

[jun0tpyrc]

seem to be a new feature that only index from last batch of blocks , in that case seem ok to expect creating tables by self , how do that param got tuned to re-index all blocks?