[PIG-5394] bag typecast in filter failing to parse

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: parser
• Assignee: Unassigned
• Reporter: Koji Noguchi
• Created: 16/Dec/19 17:17
• Updated: 16/Dec/19 17:17

Description

From https://stackoverflow.com/questions/58968054/nested-bag-tuple-casting-works-in-generate-statement-but-not-filter-statement-in

The following doesn't work

b = group a by query;
c = filter b by MAX((bag{tuple(int)})a.datetime) > 0;

I get a complaint about mismatched ; on the MAX line.

However the following does work

c = foreach b {
  generate MAX((bag{tuple(int)})a.datetime) as max_dt;
}

How come the bag{tuple(int)} casting works in generate statement but not in filter statement?