[Feature][Vectorized] support function topn && remove some unused code

[BiteTheDDDDt]

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• I had searched in the issues and found no similar issues.

Description

1. support function topn
2. remove unused header
3. remove get_header_file_path() and get_address_of_add_function()

Use case

MySQL [tpch]> set enable_vectorized_engine = false;
Query OK, 0 rows affected (0.001 sec)

MySQL [tpch]> select topn(l_linestatus,5,10) from lineitem;
+-----------------------------+
| topn(`l_linestatus`, 5, 10) |
+-----------------------------+
| {"F":29998258,"O":29987794} |
+-----------------------------+
1 row in set (5.264 sec)

MySQL [tpch]> set enable_vectorized_engine = true;
Query OK, 0 rows affected (0.001 sec)

MySQL [tpch]> select topn(l_linestatus,5,10) from lineitem;
+-----------------------------+
| topn(`l_linestatus`, 5, 10) |
+-----------------------------+
| {"F":29998258,"O":29987794} |
+-----------------------------+
1 row in set (2.075 sec)

MySQL [tpch]> set enable_vectorized_engine = false;
Query OK, 0 rows affected (0.001 sec)

MySQL [tpch]> select topn(l_partkey,3) from lineitem;
+-----------------------------------------+
| topn(`l_partkey`, 3)                    |
+-----------------------------------------+
| {"304540":58,"1090021":58,"1457334":57} |
+-----------------------------------------+
1 row in set (34.988 sec)

MySQL [tpch]> set enable_vectorized_engine = true;
Query OK, 0 rows affected (0.001 sec)

MySQL [tpch]> select topn(l_partkey,3) from lineitem;
+----------------------------------------+
| topn(`l_partkey`, 3)                   |
+----------------------------------------+
| {"304540":58,"1090021":58,"782803":57} |
+----------------------------------------+
1 row in set (18.057 sec)

Related issues

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• Yes I am willing to submit a PR!

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