BigQuery dialect should escape backslashes in string literals#5094
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Samin061 wants to merge 1 commit into
Open
BigQuery dialect should escape backslashes in string literals#5094Samin061 wants to merge 1 commit into
Samin061 wants to merge 1 commit into
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Jira Link
No Jira filed yet; happy to open one if preferred. This is a small escaping fix in the SQL generator.
Changes Proposed
BigQuerySqlDialectdeclares its escaped quote as\', but the basequoteStringLiteralonly replaces the quote character, so a literal backslash in a string value reaches BigQuery unescaped. BigQuery treats backslash as an escape character inside string literals, so a pushed-down value such asx\or\'; ...closes the literal early and the trailing characters are parsed as SQL rather than data. OverridequoteStringLiteralto double backslashes before the base method escapes the enclosing quote, so backslash-containing values round-trip as data. Added a rel2sql regression test next totestCharLiteralForBigQuery.