evm_iszero
Scalar function
EVM ISZERO opcode: Returns 1 if x == 0, otherwise returns 0. Useful for conditional logic on EVM values.
Overloads
evm_iszero(UINT256)
Parameters
| Name | Type |
|---|---|
| x | UINT256 |
Returns
| Name | Type |
|---|---|
| is_zero | BIGINT |
1
SELECT evm_iszero(balance) AS is_empty FROM accounts;
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