beliefer commented on code in PR #49564:
URL: https://github.com/apache/spark/pull/49564#discussion_r1928250961
##########
sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala:
##########
@@ -2206,4 +2206,44 @@ class JDBCSuite extends QueryTest with
SharedSparkSession {
JdbcUtils.schemaString(dialect, schema, caseSensitive = false, Some("b
boolean"))
assert(schemaStr === """"b" NUMBER(1) """)
}
+
+ test("SPARK-50666: reading hint test") {
+ // JDBC url is a required option but is not used in this test.
+ val options = new JDBCOptions(Map("url" -> "jdbc:h2://host:port",
"dbtable" -> "test",
+ "hint" -> "/*+ INDEX(test idx1) */"))
+ // hint supported
+ assert(
+ OracleDialect()
+ .getJdbcSQLQueryBuilder(options)
+ .withColumns(Array("a", "b"))
+ .build()
+ .trim() == "SELECT /*+ INDEX(test idx1) */ a,b FROM test")
+ assert(
+ MySQLDialect()
+ .getJdbcSQLQueryBuilder(options)
+ .withColumns(Array("a", "b"))
+ .build()
+ .trim() == "SELECT /*+ INDEX(test idx1) */ a,b FROM test")
Review Comment:
```
Seq(OracleDialect(), MySQLDialect()).foreach { dialect =>
dialect
.getJdbcSQLQueryBuilder(options)
.withColumns(Array("a", "b"))
.build()
.trim() == "SELECT /*+ INDEX(test idx1) */ a,b FROM test")
}
```
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