| 93 | } |
| 94 | |
| 95 | IMPALA_UDF_EXPORT |
| 96 | void StringConcatUpdate(FunctionContext* context, const StringVal& arg1, |
| 97 | const StringVal& arg2, StringVal* val) { |
| 98 | if (val->is_null) { |
| 99 | val->is_null = false; |
| 100 | *val = StringVal::CopyFrom(context, arg1.ptr, arg1.len); |
| 101 | } else { |
| 102 | int new_len = val->len + arg1.len + arg2.len; |
| 103 | StringVal new_val(context, new_len); |
| 104 | if (!new_val.is_null) { |
| 105 | memcpy(new_val.ptr, val->ptr, val->len); |
| 106 | memcpy(new_val.ptr + val->len, arg2.ptr, arg2.len); |
| 107 | memcpy(new_val.ptr + val->len + arg2.len, arg1.ptr, arg1.len); |
| 108 | } |
| 109 | *val = new_val; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | IMPALA_UDF_EXPORT |
| 114 | void StringConcatMerge(FunctionContext* context, const StringVal& src, StringVal* dst) { |
no outgoing calls
no test coverage detected