Fix backslash escaping in ClickHouse string literals#51
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ClickHouse uses C-style escape sequences so backslashes in string literals must be doubled. Sequel's Postgres adapter only escapes single-quotes, leaving bare backslashes that ClickHouse misinterprets (e.g. \' breaks query boundaries). Override literal_string_append via a dataset module mixed into every CH dataset returned by Base#from, so the fix applies through all Sequel chaining. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
tycooon
approved these changes
Jun 15, 2026
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ClickHouse uses C-style escape sequences so backslashes in string literals must be doubled. Sequel's Postgres adapter only escapes single-quotes, leaving bare backslashes that ClickHouse misinterprets (e.g. ' breaks query boundaries).
Override literal_string_append via a dataset module mixed into every CH dataset returned by Base#from, so the fix applies through all Sequel chaining.