Handle Unicode minus (U+2212) as comment-like syntax #37
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ClickHouse doesn't recognize the Unicode minus sign (−, U+2212) as a mathematical operator. Instead of parsing it as a minus, treat everything from the Unicode minus to the end of line or semicolon as a comment. This matches ClickHouse's behavior where SELECT 1 − 2 produces just Literal UInt64_1 in the EXPLAIN AST output.
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ClickHouse doesn't recognize the Unicode minus sign (−, U+2212) as a
mathematical operator. Instead of parsing it as a minus, treat everything
from the Unicode minus to the end of line or semicolon as a comment.
This matches ClickHouse's behavior where SELECT 1 − 2 produces just
Literal UInt64_1 in the EXPLAIN AST output.