cloud-fan commented on code in PR #48621:
URL: https://github.com/apache/spark/pull/48621#discussion_r1837509045
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sql/core/src/main/scala/org/apache/spark/sql/jdbc/JdbcDialects.scala:
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@@ -377,6 +378,17 @@ abstract class JdbcDialect extends Serializable with
Logging {
}
private[jdbc] class JDBCSQLBuilder extends V2ExpressionSQLBuilder {
+ def inputToCaseWhenSQL(input: Expression): String =
+ "CASE WHEN " + inputToSQL(input) + " THEN 1 ELSE 0 END"
+
+ def inputToIntSQL(expr: Expression): String = {
+ expr match {
+ case p: Predicate if p.name() != "ALWAYS_TRUE" && p.name() !=
"ALWAYS_FALSE" =>
Review Comment:
The code here assumes we don't need to turn `"ALWAYS_TRUE"` into int, we
need to prove that this assumption is true. Can you give me the code pointers?
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