thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-21 15:12:02 +00:00
Code Issues Packages Projects Releases Wiki Activity
d6e69211b1
ClickHouse/tests/queries/0_stateless/00950_test_double_delta_codec.reference

12 lines
48 B
Plaintext
Raw Normal View History

DoubleDelta column encoding. Added DoubleDelta column encoding + test cases; Added BitWriter and BitReader that allow to read data from ReadBuffer and write data to WriteBuffer bit by bit, up to 64 bits at once; Added test for BitReader and BitWriter.
2019-06-03 09:56:50 +00:00
U64
U32
U16
U8
I64
I32
I16
I8
DT
D
Fixed DoubleDelta codec edge case Casused by mistreating negative double delta value as HUGE unsigned value, crippling compression ratio.
2019-07-01 14:11:24 +00:00
Compression:
Reference in New Issue Copy Permalink