[CALCITE-3320] Use x/xerrors package when working with errors

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: avatica-go-5.0.0
• Component/s: avatica-go
• Labels: pull-request-available
• Assignee: Francis Chuang
• Reporter: Francis Chuang
• Created: 03/Sep/19 21:58
• Updated: 14/Jul/20 23:59
• Resolved: 18/Sep/19 06:30

Description

In Go 1.13, it's possible to wrap errors using `fmt.Errorf("%w", err)`. 

We need to update places where errors are wrapped to use the `%w` placeholder. 

Use the golang.org/x/xerrors for compatibility with Go versions before 1.13.

Issue Links

• links to: GitHub Pull Request #48