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
```
2019-03-01 16:47:13 +08:00
alexey-milovidov
06b5c53335
Update TwoLevelHashTable.h
2018-09-20 20:44:10 +03:00
Nikolai Kochetov
3dc5cd3a3a
Merged with master.
2018-09-14 12:14:37 +03:00
Nikolai Kochetov
2eb35dd6ef
Cache AggregateDataPtr for single low cardinality column. [#CLICKHOUSE-3903]
2018-09-14 11:04:09 +03:00
Amos Bird
af369483a9
Simply Self.
...
> When the normal name of the template (i.e., the name from the enclosing scope, not the injected-class-name) is used, it always refers to the class template itself and not a specialization of the template
http://eel.is/c++draft/temp.local
2018-09-13 22:59:54 +08:00
Alexey Milovidov
ce4349b6cd
Fixed error when huge sets for IN, JOIN, DISTINCT cannot be created with exception message "Cannot mremap... Bad address" [#CLICKHOUSE-2].
2017-08-11 02:25:51 +03:00
Alexey Milovidov
7bf7242ad3
Fixed translation errors; miscellaneous changes [#CLICKHOUSE-3].
2017-05-10 00:00:19 -04:00
Alexey Milovidov
8e5f92f025
Fixed translation errors, part 1 [#CLICKHOUSE-3].
2017-05-09 15:07:35 -04:00
f1yegor
46db454562
translate comments
2017-05-09 13:03:35 -04:00
Alexey Milovidov
310736cd7e
Moved headers and sources to same place [#CLICKHOUSE-3].
2017-04-01 12:22:42 +03:00
