[IMPALA-1738] Remove usage of lexical_cast in exprs (and elsewhere?)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.1
• Fix Version/s: Impala 2.2
• Assignee: Skye Wanderman-Milne
• Reporter: Skye Wanderman-Milne
• Created: 05/Feb/15 02:10
• Updated: 20/May/15 00:29
• Resolved: 20/May/15 00:29

Description

lexical_cast is slow and complicated. In addition, cross-compiled lexical_cast<string> calls cause 'invoke' instructions, which LLVM sometimes has trouble with and makes the IR more complicated.