yx91490 created HIVE-27397:
------------------------------
Summary: HivePreparedStatement cannot execute SQL with question
marks in comments
Key: HIVE-27397
URL: https://issues.apache.org/jira/browse/HIVE-27397
Project: Hive
Issue Type: Bug
Affects Versions: All Versions
Reporter: yx91490
It will failed to execute the code snippet:
{code:java}
String sql = "select 1 --?";
try (Connection connection = DriverManager.getConnection(url);
PreparedStatement stmt = connection.prepareStatement(sql)) {
try (ResultSet rs = stmt.executeQuery()) {
}
} {code}
The error message may be like:
{code:java}
Exception in thread "main" java.sql.SQLException: Parameter #1 is unset
at
org.apache.hive.jdbc.HivePreparedStatement.updateSql(HivePreparedStatement.java:122)
at
org.apache.hive.jdbc.HivePreparedStatement.executeQuery(HivePreparedStatement.java:100)
{code}
The cause is HivePreparedStatement.splitSqlStatement(sql) take all the template
sql's chars into consideration including the comments which may be contains the
question mark unfortunately.
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