mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-19 06:50:50 +00:00
ec86a9b933
2 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Alexander Kuzmenkov
|
8e9a8584e0 |
Do not provide mutable key access in hash map cells.
We don't need it anymore after we changed the hash table key memory management to use callbacks. Removing this interface is important for hash maps that do not store the key, such as FixedHashMap or the prospective compound StringHashMap. |
||
|
Amos Bird
|
26ab5dd7a7 |
A Proper lookup table that uses HashTable's API
This is the first step of allowing heterogeneous cells in hash tables. performance test results are ``` 1. HashMap<UInt16, UInt8, TrivialHash, HashTableFixedGrower<16>>; 2. NewLookupMap<UInt16, UInt8> ResolutionWidth 30000 1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................223550276.46 ResolutionWidth 30000 2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................248772721.24 Best: 2 - 24877272124 ResolutionWidth 100000 1 ..........................................................................................................................................................................................................................................................238498413.99 ResolutionWidth 100000 2 ..........................................................................................................................................................................................................................................................261808889.98 Best: 2 - 26180888998 ResolutionWidth 300000 1 ...................................................................................239307348.81 ResolutionWidth 300000 2 ...................................................................................257592761.30 Best: 2 - 25759276130 ResolutionWidth 1000000 1 .........................240144759.26 ResolutionWidth 1000000 2 .........................257093531.91 Best: 2 - 25709353191 ResolutionWidth 5000000 1 .....241573260.35 ResolutionWidth 5000000 2 .....259314162.79 Best: 2 - 25931416279 ResolutionDepth 30000 1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................217108119.84 ResolutionDepth 30000 2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................249459504.41 Best: 2 - 24945950441 ResolutionDepth 100000 1 ..........................................................................................................................................................................................................................................................229065162.17 ResolutionDepth 100000 2 ..........................................................................................................................................................................................................................................................253769105.64 Best: 2 - 25376910564 ResolutionDepth 300000 1 ...................................................................................233079225.18 ResolutionDepth 300000 2 ...................................................................................256316273.78 Best: 2 - 25631627378 ResolutionDepth 1000000 1 .........................234184633.51 ResolutionDepth 1000000 2 .........................261100491.57 Best: 2 - 26110049157 ResolutionDepth 5000000 1 .....233118795.66 ResolutionDepth 5000000 2 .....252436160.41 Best: 2 - 25243616041 ``` |