PIG filter by string

Question

I'm trying to filter by a string but it fails. How do I filter by String? I tried looking here http://pig.apache.org/docs/r0.10.0/basic.html#comparison but matches only works for regular expressions.

f = FILTER finished_set by item is not matches '.*0000000000000.*';

ERROR org.apache.pig.PigServer - exception during parsing: Error during parsing. mismatched input 'matches' expecting NULL

Answer 1

f = FILTER finished_set BY NOT(item  MATCHES '.*0000000000000.*');