I was wondering how to split a column in half in order to speed up a fuzzy match join. Figure A contains all the items. Figure B contains items 1-5 while Figure C contains items 6-10. After the fuzzy matching result has been completed on the separate columns, I want to rejoin them so that they resemble Figure A again with the addition of the Matched result score. Is this possible?
| ID | Item a | Item b |
| 1 | A | a |
| 2 | B | b |
| 3 | C | c |
| 4 | D | d |
| 5 | E | e |
| 6 | F | f |
| 7 | G | g |
| 8 | H | h |
| 9 | I | i |
| 10 | J | j |
Figure A
| ID | Item a | Item b |
| 1 | A | a |
| 2 | B | b |
| 3 | C | c |
| 4 | D | d |
| 5 | E | e |
Figure B
| ID | Item a | Item b |
| 6 | F | f |
| 7 | G | g |
| 8 | H | h |
| 9 | I | i |
| 10 | J | j |
Figure C