Remove duplicate params in Indexer.Fetcher.TokenBalance
#2270
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Problem: `Explorer.Chain.Import.Runner.Address.TokenBalances` fails with the `cardinality_violation` error because it tries to insert more than once token balances (for the same {token_contract_address_hash, address_hash, block_number} tuple) in a single database transaction.
Solution: filter out duplicate parameters in `Indexer.Fetcher.TokenBalance` so that no duplicates are sent to be imported.
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Pull Request Test Coverage Report for Build f4d1f5d1-ae59-4b42-bf87-0c78e3aa06e4
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ayrat555
approved these changes
Jul 1, 2019
saneery
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Jul 1, 2019
vbaranov
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Jul 1, 2019
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Motivation
Explorer.Chain.Import.Runner.Address.TokenBalancesfails with thecardinality_violationerror because it tries to insert more than once token balances (for the same {token_contract_address_hash, address_hash, block_number} tuple) in a single database transaction.Changelog
Bug Fixes
This PR filters out duplicate parameters in
Indexer.Fetcher.TokenBalanceso that no duplicates are sent to be imported.Checklist for your PR
CHANGELOG.mdwith this PR