What is this mystic symbol?

Question

What's this symbol, next to "UNION"? An unexpected typo? A secret easter egg? You can see it on the image here: https://i.imgur.com/Gm1AN7i.jpg or go to JOIN, TABLE OPERATIONS->UNION->2nd Question(or slide?) as it seems I can't paste this symbol(gonna check this out by posting)

Answer 1

Nope, it gets omitted

Answer 2

Kay, it's ALT+11 on NumPad: ♂♂♂