Tanya-W commented on code in PR #13035:
URL: https://github.com/apache/doris/pull/13035#discussion_r1057423658
##########
be/src/vec/exprs/vectorized_fn_call.cpp:
##########
@@ -104,12 +104,38 @@ doris::Status VectorizedFnCall::execute(VExprContext*
context, doris::vectorized
size_t num_columns_without_result = block->columns();
// prepare a column to save result
block->insert({nullptr, _data_type, _expr_name});
+ if (_function->can_fast_execute()) {
+ bool ok = fast_execute(context->fn_context(_fn_context_index), *block,
arguments,
+ num_columns_without_result, block->rows());
+ if (ok) {
+ *result_column_id = num_columns_without_result;
+ return Status::OK();
+ }
+ }
+
RETURN_IF_ERROR(_function->execute(context->fn_context(_fn_context_index),
*block, arguments,
num_columns_without_result,
block->rows(), false));
*result_column_id = num_columns_without_result;
return Status::OK();
}
+bool VectorizedFnCall::fast_execute(FunctionContext* context, Block& block,
+ const ColumnNumbers& arguments, size_t
result,
+ size_t input_rows_count) {
+ auto column_with_name = block.get_by_position(arguments[1]);
+ auto query_value = column_with_name.to_string(0);
+ std::string column_name = block.get_by_position(arguments[0]).name;
+ auto result_column_name = column_name + "_" + _function->get_name() + "_"
+ query_value;
Review Comment:
It's a good idea. I will try it later
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