Merge pull request #5768 from blockscout/hotfix/outstandingRowsLimit

Outstanding rows limit for missing blocks query (catchup fetcher)

CHANGELOG.md

@@ -6,6 +6,7 @@
 - [#5699](https://github.com/blockscout/blockscout/pull/5699) - Switch to basic (non-pro) API endpoint for Coingecko requests, if API key is not provided
 
 ### Fixes
+- [#5768](https://github.com/blockscout/blockscout/pull/5768) - Outstanding rows limit for missing blocks query (catchup fetcher)
 - [#5737](https://github.com/blockscout/blockscout/pull/5737) - Fix double requests; Fix token balances dropdown view
 - [#5723](https://github.com/blockscout/blockscout/pull/5723) - Add nil clause for Data.to_string/1
 - [#5714](https://github.com/blockscout/blockscout/pull/5714) - Add clause for EthereumJSONRPC.Transaction.elixir_to_params/1 when gas_price is missing in the response

apps/explorer/lib/explorer/chain.ex

@@ -2987,10 +2987,14 @@ defmodule Explorer.Chain do
         right_join:
           missing_range in fragment(
             """
-              (SELECT distinct b1.number
+            (
+              SELECT distinct b1.number
               FROM generate_series((?)::integer, (?)::integer) AS b1(number)
               WHERE NOT EXISTS
-                (SELECT 1 FROM blocks b2 WHERE b2.number=b1.number AND b2.consensus))
+                (SELECT 1 FROM blocks b2 WHERE b2.number=b1.number AND b2.consensus)
+              ORDER BY b1.number DESC
+              LIMIT 500000
+            )
             """,
             ^range_min,
             ^range_max