[PIG-2156] Limit/Sample with variable does not work if the expression starts with an integer/double

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Hadoop Flags: Reviewed
• Assignee: Gianmarco De Francisci Morales
• Reporter: Gianmarco De Francisci Morales
• Created: 12/Jul/11 14:52
• Updated: 14/Jul/11 16:13
• Resolved: 14/Jul/11 16:13

Description

Pig generates an error with this script:

grunt> a = load 'a.txt';                      
grunt> b = group a all;                       
grunt> c = foreach b generate COUNT(a) as sum;
grunt> d = limit a 1 * c.sum;  
[main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1200: <line 4, column 14>  mismatched input '*' expecting SEMI_COLON

The reason is the parser chooses the wrong alternative.

Issue Links

• is related to: PIG-1926 Sample/Limit should take scalar