database/doris
2
0
Fork 0
Code Issues Pull Requests Actions 3 Packages Projects Releases Wiki Activity

[feature] Support pre-aggregation for quantile type (#8234)

Browse Source 
Add a new column-type to speed up the approximation of quantiles.
1. The  new column-type is named `quantile_state` with fixed aggregation function `quantile_union`, which stores the intermediate results of pre-aggregated approximation calculations for quantiles.
2. support pre-aggregation of new column-type and quantile_state related functions.
This commit is contained in:
spaces-x
2022-03-24 09:11:34 +08:00
committed by GitHub
parent 36c85d2f06
commit bea9a7ba4f
67 changed files with 1498 additions and 153 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
be/src/exprs/case_expr.cpp
View File

@ -110,6 +110,7 @@ void CaseExpr::get_child_val(int child_idx, ExprContext* ctx, TupleRow* row, Any
case TYPE_VARCHAR:
case TYPE_HLL:
case TYPE_OBJECT:
case TYPE_QUANTILE_STATE:
case TYPE_STRING:
*reinterpret_cast<StringVal*>(dst) = _children[child_idx]->get_string_val(ctx, row);
break;
@ -155,6 +156,7 @@ bool CaseExpr::any_val_eq(const TypeDescriptor& type, const AnyVal* v1, const An
case TYPE_VARCHAR:
case TYPE_HLL:
case TYPE_OBJECT:
case TYPE_QUANTILE_STATE:
case TYPE_STRING:
return AnyValUtil::equals(type, *reinterpret_cast<const StringVal*>(v1),
*reinterpret_cast<const StringVal*>(v2));