beliefer commented on a change in pull request #35768:
URL: https://github.com/apache/spark/pull/35768#discussion_r825824433
##########
File path:
sql/catalyst/src/main/java/org/apache/spark/sql/connector/util/V2ExpressionSQLBuilder.java
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@@ -103,8 +119,26 @@ protected String visitIsNotNull(String v) {
return v + " IS NOT NULL";
}
+ protected String visitStringPredicate(String name, String l, String r) {
+ String value = r.replaceAll("'", "");
+ switch (name) {
+ case "STARTS_WITH":
+ return l + " LIKE '" + value + "%'";
+ case "ENDS_WITH":
+ return l + " LIKE '%" + value + "'";
+ default: // "CONTAINS"
+ return l + " LIKE '%" + value + "%'";
+ }
+ }
+
protected String visitBinaryComparison(String name, String l, String r) {
- return "(" + l + ") " + name + " (" + r + ")";
+ switch (name) {
+ case "<=>":
+ return "(NOT (" + l + " != " + r + " OR " + l + " IS NULL OR " + r + "
IS NULL) OR " +
+ "(" + l + " IS NULL AND " + r + " IS NULL))";
Review comment:
OK. I got it.
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