Victor Baranov
5 years ago
committed by
GitHub
commit
d15c17e0e5
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-- This script should be a part of migration to "pennding_block_operations" internal transactions indexing approach |
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-- if 20191018140054_add_pending_internal_txs_operation.exs migration failed due to occasional duplicates of |
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-- {block_hash, block_index} pair in the DB, that could exist due to bugs in previous versions of the application |
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--, before setting a primary key on those columns. If so, this script should be inserted at line 57 of that migration |
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-- just before changing of a primary key. |
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DO $$ |
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DECLARE |
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duplicates_count INTEGER := 0; |
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blocks_scanned INTEGER := 0; |
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int_txs_count INTEGER := 0; |
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temprow RECORD; |
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BEGIN |
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SELECT COUNT(*) INTO int_txs_count FROM internal_transactions; |
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IF int_txs_count < 10000000 THEN |
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FOR temprow IN |
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SELECT block_hash FROM internal_transactions |
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GROUP BY block_hash, block_index HAVING COUNT(*) > 1 |
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LOOP |
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duplicates_count := duplicates_count + 1; |
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RAISE NOTICE '% duplicates, blocks scanned %, block #%, block hash is %', duplicates_count, blocks_scanned, temprow.number , temprow.hash; |
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IF NOT EXISTS ( |
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SELECT 1 FROM pending_block_operations |
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WHERE block_hash = temprow.block_hash |
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) THEN |
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INSERT INTO pending_block_operations |
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(block_hash, inserted_at, updated_at, fetch_internal_transactions) |
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SELECT b.hash, now(), now(), TRUE FROM blocks b |
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WHERE b.hash = temprow.block_hash; |
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END IF; |
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DELETE FROM internal_transactions |
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WHERE block_hash = temprow.block_hash; |
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RAISE NOTICE 'DELETED'; |
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END LOOP; |
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ELSE |
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FOR temprow IN SELECT number, hash FROM blocks LOOP |
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blocks_scanned := blocks_scanned + 1; |
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IF EXISTS ( |
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SELECT 1 FROM transactions WHERE block_hash = temprow.hash |
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) THEN |
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IF EXISTS ( |
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SELECT block_hash, block_index FROM internal_transactions |
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WHERE block_hash = temprow.hash |
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GROUP BY block_hash, block_index HAVING COUNT(*) > 1 |
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) THEN |
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duplicates_count := duplicates_count + 1; |
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RAISE NOTICE '% duplicates, blocks scanned %, block #%, block hash is %', duplicates_count, blocks_scanned, temprow.number , temprow.hash; |
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IF NOT EXISTS ( |
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SELECT 1 FROM pending_block_operations |
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WHERE block_hash = temprow.hash |
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) THEN |
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INSERT INTO pending_block_operations |
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(block_hash, inserted_at, updated_at, fetch_internal_transactions) |
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SELECT b.hash, now(), now(), TRUE FROM blocks b |
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WHERE b.hash = temprow.hash; |
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END IF; |
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DELETE FROM internal_transactions |
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WHERE block_hash = temprow.hash; |
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RAISE NOTICE 'DELETED'; |
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END IF; |
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END IF; |
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END LOOP; |
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END IF; |
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RAISE NOTICE 'SCRIPT FINISHED'; |
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END $$; |
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