fix: scripts query empty result lead deadlock

[rabbitz]

Magickbase/ckb-explorer-frontend#118 (comment)

[rabbitz]

"SELECT \"ckb_transactions\".* FROM \"ckb_transactions\" INNER JOIN \"cell_dependencies\" ON \"ckb_transactions\".\"id\" = \"cell_dependencies\".\"ckb_transaction_id\" WHERE \"cell_dependencies\".\"contract_id\" = 13 ORDER BY \"ckb_transactions\".\"id\" DESC LIMIT 10 OFFSET 0"

The result of this query is empty, but as soon as the order query is added, it gets stuck. Use sql SELECT * FROM pg_stat_activity; to check:

{"datid"=>14301,
  "datname"=>"postgres",
  "pid"=>18542,
  "leader_pid"=>nil,
  "usesysid"=>16395,
  "usename"=>"postgres",
  "application_name"=>"bin/rails",
  "client_addr"=>"10.10.10.157",
  "client_hostname"=>nil,
  "client_port"=>5792,
  "backend_start"=>2023-12-13 06:11:34.739254 +0000,
  "xact_start"=>2023-12-13 06:16:53.671756 +0000,
  "query_start"=>2023-12-13 06:16:53.675355 +0000,
  "state_change"=>2023-12-13 06:16:53.675355 +0000,
  "wait_event_type"=>"IO",
  "wait_event"=>"DataFileRead",
  "state"=>"active",
  "backend_xid"=>nil,
  "backend_xmin"=>"1025555882",
  "query"=>"SELECT \"ckb_transactions\".* FROM \"ckb_transactions\" INNER JOIN \"cell_dependencies\" ON \"ckb_transactions\".\"id\" = \"cell_dependencies\".\"ckb_transaction_id\" WHERE \"cell_dependencies\".\"contract_id\" = $1 ORDER BY \"ckb_transactions\".\"id\" DESC LIMIT $2 OFFSET $3",
  "backend_type"=>"client backend"}

@zmcNotafraid

[codecov-commenter]

Codecov Report

Attention: 198 lines in your changes are missing coverage. Please review.

Comparison is base (bb447e4) 66.37% compared to head (eba51fc) 67.51%.
Report is 156 commits behind head on develop.

❗ Current head eba51fc differs from pull request most recent head 5fe5acd. Consider uploading reports for the commit 5fe5acd to get more accurate results

Files	Patch %	Lines
...ib/tasks/migration/update_output_cells_status.rake	29.26%	29 Missing ⚠️
lib/tasks/migration/generate_referring_cells.rake	19.23%	21 Missing ⚠️
.../controllers/api/v1/ckb_transactions_controller.rb	39.28%	17 Missing ⚠️
app/workers/token_transfer_detect_worker.rb	10.52%	17 Missing ⚠️
...ib/tasks/migration/async_missing_transactions.rake	15.78%	16 Missing ⚠️
app/workers/contract_statistic_worker.rb	0.00%	15 Missing ⚠️
app/controllers/api/v2/scripts_controller.rb	69.76%	13 Missing ⚠️
app/models/ckb_sync/new_node_data_processor.rb	72.34%	13 Missing ⚠️
lib/websocket.rb	0.00%	10 Missing ⚠️
lib/scheduler.rb	0.00%	7 Missing ⚠️
... and 14 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1532      +/-   ##
===========================================
+ Coverage    66.37%   67.51%   +1.13%     
===========================================
  Files          275      284       +9     
  Lines         7397     7674     +277     
===========================================
+ Hits          4910     5181     +271     
- Misses        2487     2493       +6     

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