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https://github.com/featurebasedb/featurebase.git
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74ee3ebf0e
* implemented distinct
* implemented distinct
* uses first cut of a buffer pool, and extendible hashing with thresholded spill to disk
* tests
* cleaned up some stuff around query plan output to make developing tooling easier
* added optimization to call PQL Distinct()
* fixed test
* fix for passing wrong index name in orchestrator
* back out change to DistinctTimestamp
* fix other instance of wrong table name being passed
* use full index name instead of abbreviated one for translation. sigh.
* removed some unused code
Co-authored-by: Matthew Jaffee <jaffee@pilosa.com>
(cherry picked from commit f030d58d95)
24 lines
382 B
Go
24 lines
382 B
Go
package extendiblehash
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import (
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"github.com/zeebo/xxh3"
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)
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type Hashable interface {
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Hash() uint64
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}
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// use the same seed all the time - this is not for crypto
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var protoSeed uint64 = 20041973
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var hasher = xxh3.NewSeed(protoSeed)
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type Key []byte
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// BEWARE - not concurrent!!
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func (k Key) Hash() uint64 {
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hasher.Reset()
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hasher.Write(k)
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hash := hasher.Sum64()
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return hash
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}
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