Currently, the WHERE statement only applies to the GO statement.
WHERE (expression [ AND | OR expression ...])
Usually, WHERE is a set of logical combination that filter vertex or edge properties.
As syntactic sugar, you can freely choose to use both
ANDand&&. They are both boolean logical and. So doORand||.
/* GO FROM 201 OVER like */ -- Apply in a GO statement
WHERE e1.prop1 >= 17 -- the edge e1's property prop1 is larger than 17
WHERE $^.v1.prop1 == $$.v2.prop2 -- the source vertex v1's property prop1 is equivalent with destination vertex v2's property prop2
WHERE ((e3.prop3 < 0.5) OR ($^.v4.prop4 != "hello")) AND $$.v5.prop5 == "world" -- logical combination is allowed
WHERE 1 == 1 OR TRUE --always TRUE