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ResultSet.getTimestamp() throws NullPointerException on DATE column #537
Description
Using org.duckdb:duckdb_jdbc:jar:1.4.3.0 the following throws a NullPointerException unexpectedly.
var c = db().getDataSource().getConnection();
var st = c.prepareStatement("select cast(now() as DATE) as d");
var rs = st.executeQuery();
rs.next();
System.out.println(rs.getString("d")); // OK
System.out.println(rs.getDate("d")); // OK
System.out.println(rs.getTimestamp("d")); // Throws NPEThe stack trace:
java.lang.NullPointerException: Cannot load from object array because "this.varlen_data" is null
at org.duckdb.DuckDBVector.getLazyString(DuckDBVector.java:267)
at org.duckdb.DuckDBVector.getTimestamp(DuckDBVector.java:643)
at org.duckdb.DuckDBVector.getTimestamp(DuckDBVector.java:242)
at org.duckdb.DuckDBResultSet.getTimestamp(DuckDBResultSet.java:418)
at org.duckdb.DuckDBResultSet.getTimestamp(DuckDBResultSet.java:593)
at bx.sql.ResultsTest.testDemonstrateBug(ResultsTest.java:757)
The stack trace is similar to #146
Activity
Allow to get timestamps from DATE column
staticlibs commentedon Jan 23, 2026
Hi, thanks for the report! I filed #539 to fix this.
Allow to get timestamps from DATE column (1.5)
Allow to get timestamps from DATE column (1.4)
Allow to get timestamps from DATE column (1.5)
Allow to get timestamps from DATE column (1.4)
Allow to get timestamps from DATE column