Add support of 1D expression in xcsv

[Alex-PLACET]

Checklist

• [x] The title and commit message(s) are descriptive.
• [x] Small commits made to fix your PR have been squashed to avoid history pollution.
• [x] Tests have been added for new features or bug fixes.
• [ ] API of new functions and classes are documented.

Description

Add support of 1D expression in xcsv

Address: #2791