[IMPALA-2149] Operators in Impala expressions have unusual precedence

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: Impala 2.2
• Component/s: Frontend
• Labels: compatibility incompatibility sql-language
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Tim Armstrong
• Created: 20/Jul/15 21:46
• Updated: 08/Aug/17 16:53

Description

Impala includes operators like !, ||, &&, &, |, that are not part of standard SQL. These should probably follow precedence rules similar to the languages from which they're taken, but they often don't currently.

E.g.
!x = y parses as !(x = y) rather than (!x) = y
~x + y parses as

x * y | z parses as x * (y | z) rather than (x * y) | z

Sub-Tasks

• Incorrect precedence of unary minus and plus: Resolved
• Incorrect precedence of factorial operator: Open