beliefer commented on code in PR #43801:
URL: https://github.com/apache/spark/pull/43801#discussion_r1400121955
##########
sql/catalyst/src/main/java/org/apache/spark/sql/connector/util/V2ExpressionSQLBuilder.java:
##########
@@ -48,6 +48,29 @@
*/
public class V2ExpressionSQLBuilder {
+ protected String escapeSpecialChar(String str) {
+ StringBuilder builder = new StringBuilder();
+
+ for (char c : str.toCharArray()) {
+ switch (c) {
+ case '_':
+ builder.append("\\_");
+ break;
+ case '%':
+ builder.append("\\%");
+ break;
+ case '\'':
+ builder.append("\'");
Review Comment:
H2 doesn't it.
```
org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement
"SELECT ""EMAIL"" FROM ""test"".""address"" WHERE (""EMAIL"" IS NOT NULL) AND
(""EMAIL"" LIKE 'abc\\_\\'[*]\\'\\%%') "; SQL statement:
SELECT "EMAIL" FROM "test"."address" WHERE ("EMAIL" IS NOT NULL) AND
("EMAIL" LIKE 'abc\_\'\'\%%') [42000-220]
```
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