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| static int32_t | HashInt (int32_t value) |
| | Hash a 32-bit integer using MurmurHash3 and return a 32-bit hash value.
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| |
| static int32_t | HashLong (int64_t value) |
| | Hash a 64-bit integer using MurmurHash3 and return a 32-bit hash value.
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| |
| static int32_t | HashBytes (std::span< const uint8_t > bytes) |
| | Hash a byte array using MurmurHash3 and return a 32-bit hash value.
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| static Result< int32_t > | BucketIndex (const Literal &literal, int32_t num_buckets) |
| | Compute the bucket index for a given literal and number of buckets.
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| |
◆ BucketIndex()
| Result< int32_t > iceberg::BucketUtils::BucketIndex |
( |
const Literal & |
literal, |
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|
int32_t |
num_buckets |
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) |
| |
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static |
Compute the bucket index for a given literal and number of buckets.
- Parameters
-
| literal | The input literal to hash. |
| num_buckets | The number of buckets to hash into. |
- Returns
- (murmur3_x86_32_hash(literal) & Integer.MAX_VALUE) % num_buckets
◆ HashBytes()
| int32_t iceberg::BucketUtils::HashBytes |
( |
std::span< const uint8_t > |
bytes | ) |
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|
static |
Hash a byte array using MurmurHash3 and return a 32-bit hash value.
- Parameters
-
| bytes | The input byte array to hash. |
- Returns
- A 32-bit hash value.
◆ HashInt()
| static int32_t iceberg::BucketUtils::HashInt |
( |
int32_t |
value | ) |
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|
inlinestatic |
Hash a 32-bit integer using MurmurHash3 and return a 32-bit hash value.
- Parameters
-
| value | The input integer to hash. |
- Note
- Integer and long hash results must be identical for all integer values. This ensures that schema evolution does not change bucket partition values if integer types are promoted.
- Returns
- A 32-bit hash value.
◆ HashLong()
| int32_t iceberg::BucketUtils::HashLong |
( |
int64_t |
value | ) |
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|
static |
Hash a 64-bit integer using MurmurHash3 and return a 32-bit hash value.
- Parameters
-
| value | The input long to hash. |
- Returns
- A 32-bit hash value.
The documentation for this class was generated from the following files:
