357d5df66b
remove useless alias ( #6473 )
2018-05-05 22:36:54 +08:00
27dc8f3550
expression/agg: add ResetContext() for stream aggregation. ( #6097 )
2018-03-22 13:52:02 +08:00
0553deeb42
*:improve code readability and unified aliases ( #5997 )
2018-03-15 10:52:36 +08:00
d9e16e104f
*: Cleanup code ( #5852 )
2018-02-12 23:17:03 +08:00
fc6376981d
*: remove GetSessionVars() in expression evaluation ( #5683 )
2018-01-22 11:04:32 +08:00
2550969cae
aggregation, plan: split the presentation and evaluation layers of aggregation functions ( #5635 )
2018-01-15 15:48:03 +08:00
ecbd60c3ff
*: add arguement StatementContext to Encode functions. ( #5566 )
2018-01-06 17:31:08 +08:00
bc459c5261
executor: support Chunk for HashAggExec ( #5244 )
2018-01-06 10:21:52 +08:00
8b149c3323
Prealloc / collides with package name ( #5560 )
2018-01-05 19:15:54 +08:00
6b6afb6c55
expression, plan: support builtin aggregation function 'bit_or' ( #5145 )
2017-12-19 05:51:08 -06:00
c46f289d5a
expression, plan: support builtin aggregation function 'bit_xor' ( #5090 )
2017-12-05 19:32:27 +08:00
9ac1c08bf8
ast, plan, expression: support builtin aggregation function 'bit_and' ( #5147 )
2017-11-24 09:58:41 +08:00
8b15cb52b7
*: move StatementContext to its own package. ( #5177 )
2017-11-22 00:11:14 +08:00
62433663e5
util/types: change types path ( #5007 )
...
* util/types: change types path
2017-11-04 10:37:14 -05:00
ed7f68ca9b
*: Add Row interface ( #4859 )
2017-10-23 11:36:28 +08:00
25b5a2ce18
*: Refactor aggregation ( #4605 )
...
Aggregation results were stored in aggregation functions, so one map is created for each function to store different groups’ results, which requires much memory.
The aggregation functions are refactored and are now stateless, and the maps are kept in executor (executor.HashAggExec and mocktikv.aggregateExec) so that only one map is needed to store all the functions’ results, which reduced the memory usage.
2017-09-22 19:41:01 +08:00
2762c44161
*: move aggregate functions to an individual package "aggregation" ( #4549 )
2017-09-18 15:07:35 +08:00
