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Use fmt and std::from_chars to make convert integer to string and convert string to integer more efficient (#6361)

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* [Optimize] optimize the speed of converting integer to string

* Use fmt and std::from_chars to make convert integer to string and convert string to integer more efficient

Co-authored-by: caiconghui <caiconghui@xiaomi.com>
This commit is contained in:
caiconghui
2021-08-04 10:55:19 +08:00
committed by GitHub
parent 16bc5fa585
commit d1007afe80
11 changed files with 71 additions and 123 deletions
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5
be/src/exec/es_scan_node.cpp
View File

@ -611,11 +611,8 @@ bool EsScanNode::to_ext_literal(PrimitiveType slot_type, void* value, TExtLitera
case TYPE_LARGEINT: {
node_type = (TExprNodeType::LARGE_INT_LITERAL);
char buf[48];
int len = 48;
char* v = LargeIntValue::to_string(*reinterpret_cast<__int128*>(value), buf, &len);
TLargeIntLiteral large_int_literal;
large_int_literal.__set_value(v);
large_int_literal.__set_value(LargeIntValue::to_string(*reinterpret_cast<__int128*>(value)));
literal->__set_large_int_literal(large_int_literal);
break;
}

7
be/src/exec/odbc_connector.cpp
View File

@ -284,11 +284,8 @@ Status ODBCConnector::append(const std::string& table_name, RowBatch* batch,
break;
}
case TYPE_LARGEINT: {
char buf[48];
int len = 48;
char* v = LargeIntValue::to_string(
reinterpret_cast<const PackedInt128*>(item)->value, buf, &len);
fmt::format_to(_insert_stmt_buffer, "{}", std::string(v, len));
fmt::format_to(_insert_stmt_buffer, "{}",
reinterpret_cast<const PackedInt128*>(item)->value);
break;
}
default: {