[BugFix] Fix the Spark Writer bug when the column name contains a dot(.)

[lixueclaire]

Proposed changes

Fix the bug #100

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Further comments

fix #100

[github-actions]

🎊 PR Preview 8cea0b9 has been successfully built and deployed to https://alibaba-graphar-build-pr-101.surge.sh

_{🤖 By surge-preview}

[acezen]

LGTM