Database Table Sharding Calculator

Calculate table sharding for PayInfo and OperationLog based on merchant codes

Merchant Code Input
Enter a merchant code to calculate the corresponding database table sharding
Quick test:
PayInfo Table Sharding
Uses substring(8) hash with 20 tables (1-20)
OperationLog Table Sharding
Uses full string hash with 64 tables (0-63)
Sharding Strategy Comparison
AspectPayInfo ShardingOperationLog Sharding
Input DataSubstring from position 8Full merchant code
Table Count20 tables (1-20)64 tables (0-63)
Hash Functionabs(hash % 20) + 1abs(hash % 64)
Use CasePayment information storageOperation log storage
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