running example using "within xx seconds" can't recognize

[sunriseLe]

@sameeragarwal
I use BlinkDB CLI,and run simple SQL queries like:
select count(1) from src within 1 seconds;
I run into an error:
**FAILED: Parse Error: line 1:25 Failed to recognize predicate 'within'. Failed rule: 'kwInner' in join type specifier
**