Minor patches for koios-1.0.10

[rdlrt]

Description

• Bump up margin for tx rollback lookup for asset_info_cache to 1000 , as 100 is too small a margin for 2-3 blocks , which can contain more than 100 transactions (of which if oldest transaction contains a mint, it will not get into the cache)
• Specs:
  • Fix examples in for preprod/preview
  • Update tx_info > plutus_contracts > address to be nullable
• For asset_list object in address/account/tx related endpoints - reduce strictness with asset_info_cache, making it a LEFT JOIN instead of INNER JOIN in case the cache does not (yet) have an entry for those assets - since it's only used for decimals. The asset_info/policy_asset_info/asset_addresses/asset_nft_address/policy_asset_list endpoints have more dependency on this cache - they're untouched

How has this been tested?

• Asset info cache was tested based on results against user reported error
• Spec changes were tested using schemathesis on preprod/preview

[Scitz0]

👍

[rdlrt]

For asset info cache, monitored the result of query below for a week, it did not return any transactions that was more than a 5 blocks ago:

select * from multi_asset ma left join grest.asset_info_cache aic ON ma.id = aic.asset_id LEFT JOIN ma_tx_mint mtm ON mtm.ident = ma.id WHERE aic.asset_id is NULL AND mtm.tx_id IS NOT NULL AND mtm.tx_id <= (select min(id) from tx where block_id = ((select id from block order by id desc limit 1) - 5));

For the scope of missed transactions, the increase in index seems to have done the trick.