ulysses-you commented on code in PR #4081:
URL: https://github.com/apache/kyuubi/pull/4081#discussion_r1061298281
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kyuubi-server/src/main/antlr4/org/apache/kyuubi/sql/KyuubiSqlBaseLexer.g4:
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@@ -59,12 +59,15 @@ GTE : '>=' | '!<';
LEFT_PAREN: '(';
RIGHT_PAREN: ')';
OR: 'OR';
+SEARCH_STRING_ESCAPE: '\\\'' '\\\\' '\\\'';
Review Comment:
I test it locally, it print `'\'`
```java
public static void main(String[] args) {
StringBuilder b = new StringBuilder();
quoteStringLiteral(b, "\\");
System.out.println(b.toString());
}
private static void quoteStringLiteral(StringBuilder out, String value)
{
out.append('\'');
for (int i = 0; i < value.length(); i++) {
char c = value.charAt(i);
out.append(c);
if (c == '\'') {
out.append('\'');
}
}
out.append('\'');
}
```
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