Text array in prepared statements returns null when using binary tranfer

Hi,

When using binary transfer, I'm having problems using a prepared statement
that returns a text array type: it returns null when it uses the prepared
statement where it should have value.

If I set the binaryTransfer property to false, it works fine.

I've tested it using postgresql-9.3-1102.jdbc4.jar in a PG 9.2 and 9.3
database.

With older jdbc versions (ie. postgresql-9.0-801.jdbc4.jar), which don't
implement the binary transfer, it works fine.

Here is the code I tested:

import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Properties;

public class TestMe {
public static void main(String[] args) throws SQLException {
String url = "jdbc:postgresql://localhost:5433/pi1";
Connection conn = null;
// org.postgresql.Driver.setLogLevel(org.postgresql.Driver.DEBUG);

Properties connectionProps = new Properties();
connectionProps.put("user", "tad");
connectionProps.put("password", "password");
connectionProps.put("binaryTransfer", "true");
conn = DriverManager.getConnection(url, connectionProps);

Driver driver = DriverManager.getDriver(url);
conn = driver.connect(url, connectionProps);
System.out.println(org.postgresql.Driver.MAJORVERSION + "."
+ org.postgresql.Driver.MINORVERSION);

PreparedStatement fs = conn
.prepareStatement("SELECT proargnames FROM pg_proc where proname
='pg_cursor'");

((org.postgresql.PGStatement) fs).setPrepareThreshold(1);
// execute twice to use prepared statement 2nd time
for (int i = 0; i < 2; i++) {
ResultSet rs = fs.executeQuery();
rs.next();

System.out.println(rs.getArray(1));
rs.close();
}
}
}

This is the output:

9.3
{name,statement,is_holdable,is_binary,is_scrollable,creation_time}
null

note second time it return null for the same query.

Here is the output setting log to debug.

14:20:58.961 (1) PostgreSQL 9.3 JDBC4 (build 1102)
14:20:58.967 (1) Trying to establish a protocol version 3 connection to
localhost:5433
14:20:58.991 (1) Receive Buffer Size is 131003
14:20:58.991 (1) Send Buffer Size is 331875
14:20:58.991 (1) FE=> StartupPacket(user=tad, database=pi1,
client_encoding=UTF8, DateStyle=ISO, extra_float_digits=2,
TimeZone=Europe/Madrid)
14:20:58.994 (1) <=BE AuthenticationOk
14:20:59.008 (1) <=BE ParameterStatus(application_name = )
14:20:59.008 (1) <=BE ParameterStatus(client_encoding = UTF8)
14:20:59.009 (1) <=BE ParameterStatus(DateStyle = ISO, DMY)
14:20:59.009 (1) <=BE ParameterStatus(integer_datetimes = on)
14:20:59.009 (1) <=BE ParameterStatus(IntervalStyle = postgres)
14:20:59.009 (1) <=BE ParameterStatus(is_superuser = on)
14:20:59.009 (1) <=BE ParameterStatus(server_encoding = UTF8)
14:20:59.009 (1) <=BE ParameterStatus(server_version = 9.3.5)
14:20:59.009 (1) <=BE ParameterStatus(session_authorization = tad)
14:20:59.009 (1) <=BE ParameterStatus(standard_conforming_strings = on)
14:20:59.009 (1) <=BE ParameterStatus(TimeZone = Europe/Madrid)
14:20:59.009 (1) <=BE BackendKeyData(pid=28270,ckey=1496394801)
14:20:59.009 (1) <=BE ReadyForQuery(I)
14:20:59.010 (1) simple execute,
handler=org(dot)postgresql(dot)core(dot)SetupQueryRunner$SimpleResultHandler(at)6bc947,
maxRows=0, fetchSize=0, flags=23
14:20:59.011 (1) FE=> Parse(stmt=null,query="SET extra_float_digits =
3",oids={})
14:20:59.012 (1) FE=> Bind(stmt=null,portal=null)
14:20:59.012 (1) FE=> Execute(portal=null,limit=1)
14:20:59.012 (1) FE=> Sync
14:20:59.013 (1) <=BE ParseComplete [null]
14:20:59.013 (1) <=BE BindComplete [null]
14:20:59.013 (1) <=BE CommandStatus(SET)
14:20:59.013 (1) <=BE ReadyForQuery(I)
14:20:59.014 (1) compatible = 9.3
14:20:59.014 (1) loglevel = 2
14:20:59.015 (1) prepare threshold = 5
14:20:59.020 (1) types using binary send =
INT8_ARRAY,TIMESTAMPTZ,FLOAT4_ARRAY,FLOAT8_ARRAY,UUID,TEXT_ARRAY,VARCHAR_ARRAY,BYTEA,TIME,FLOAT4,FLOAT8,INT2_ARRAY,TIMETZ,INT2,INT8,INT4,INT4_ARRAY,TIMESTAMP,POINT,BOX
14:20:59.023 (1) types using binary receive =
INT8_ARRAY,TIMESTAMPTZ,FLOAT4_ARRAY,FLOAT8_ARRAY,UUID,TEXT_ARRAY,VARCHAR_ARRAY,BYTEA,TIME,DATE,FLOAT4,FLOAT8,INT2_ARRAY,TIMETZ,INT2,INT8,INT4,INT4_ARRAY,TIMESTAMP,POINT,BOX
14:20:59.023 (1) integer date/time = true
getConnection returning org.postgresql.Driver
DriverManager.getDriver("jdbc:postgresql://localhost:5433/pi1")
getDriver returning org.postgresql.Driver
14:20:59.035 (driver) Connecting with URL:
jdbc:postgresql://localhost:5433/pi1
14:20:59.035 (2) PostgreSQL 9.3 JDBC4 (build 1102)
14:20:59.035 (2) Trying to establish a protocol version 3 connection to
localhost:5433
14:20:59.036 (2) Receive Buffer Size is 131003
14:20:59.036 (2) Send Buffer Size is 331875
14:20:59.036 (2) FE=> StartupPacket(user=tad, database=pi1,
client_encoding=UTF8, DateStyle=ISO, extra_float_digits=2,
TimeZone=Europe/Madrid)
14:20:59.038 (2) <=BE AuthenticationOk
14:20:59.039 (2) <=BE ParameterStatus(application_name = )
14:20:59.039 (2) <=BE ParameterStatus(client_encoding = UTF8)
14:20:59.039 (2) <=BE ParameterStatus(DateStyle = ISO, DMY)
14:20:59.039 (2) <=BE ParameterStatus(integer_datetimes = on)
14:20:59.039 (2) <=BE ParameterStatus(IntervalStyle = postgres)
14:20:59.039 (2) <=BE ParameterStatus(is_superuser = on)
14:20:59.039 (2) <=BE ParameterStatus(server_encoding = UTF8)
14:20:59.039 (2) <=BE ParameterStatus(server_version = 9.3.5)
14:20:59.039 (2) <=BE ParameterStatus(session_authorization = tad)
14:20:59.039 (2) <=BE ParameterStatus(standard_conforming_strings = on)
14:20:59.039 (2) <=BE ParameterStatus(TimeZone = Europe/Madrid)
14:20:59.039 (2) <=BE BackendKeyData(pid=28271,ckey=447213844)
14:20:59.040 (2) <=BE ReadyForQuery(I)
14:20:59.040 (2) simple execute,
handler=org(dot)postgresql(dot)core(dot)SetupQueryRunner$SimpleResultHandler(at)1118efc0,
maxRows=0, fetchSize=0, flags=23
14:20:59.040 (2) FE=> Parse(stmt=null,query="SET extra_float_digits =
3",oids={})
14:20:59.040 (2) FE=> Bind(stmt=null,portal=null)
14:20:59.040 (2) FE=> Execute(portal=null,limit=1)
14:20:59.040 (2) FE=> Sync
14:20:59.041 (2) <=BE ParseComplete [null]
14:20:59.041 (2) <=BE BindComplete [null]
14:20:59.041 (2) <=BE CommandStatus(SET)
14:20:59.041 (2) <=BE ReadyForQuery(I)
14:20:59.041 (2) compatible = 9.3
14:20:59.041 (2) loglevel = 2
14:20:59.041 (2) prepare threshold = 5
14:20:59.043 (2) types using binary send =
INT8_ARRAY,TIMESTAMPTZ,FLOAT4_ARRAY,FLOAT8_ARRAY,UUID,TEXT_ARRAY,VARCHAR_ARRAY,BYTEA,TIME,FLOAT4,FLOAT8,INT2_ARRAY,TIMETZ,INT2,INT8,INT4,INT4_ARRAY,TIMESTAMP,POINT,BOX
14:20:59.044 (2) types using binary receive =
INT8_ARRAY,TIMESTAMPTZ,FLOAT4_ARRAY,FLOAT8_ARRAY,UUID,TEXT_ARRAY,VARCHAR_ARRAY,BYTEA,TIME,DATE,FLOAT4,FLOAT8,INT2_ARRAY,TIMETZ,INT2,INT8,INT4,INT4_ARRAY,TIMESTAMP,POINT,BOX
14:20:59.044 (2) integer date/time = true
9.3
14:20:59.056 (2) simple execute,
handler=org(dot)postgresql(dot)jdbc2(dot)AbstractJdbc2Statement$StatementResultHandler(at)216f6006,
maxRows=0, fetchSize=0, flags=16
14:20:59.057 (2) FE=> Parse(stmt=S_1,query="SELECT proargnames FROM
pg_proc where proname ='pg_cursor'",oids={})
14:20:59.057 (2) FE=> Bind(stmt=S_1,portal=null)
14:20:59.057 (2) FE=> Describe(portal=null)
14:20:59.057 (2) FE=> Execute(portal=null,limit=0)
14:20:59.057 (2) FE=> Sync
14:20:59.059 (2) <=BE ParseComplete [S_1]
14:20:59.059 (2) <=BE BindComplete [null]
14:20:59.060 (2) <=BE RowDescription(1)
14:20:59.060 (2) Field(,TEXT_ARRAY,65535,T)
14:20:59.060 (2) <=BE DataRow(len=66)
14:20:59.060 (2) <=BE CommandStatus(SELECT 1)
14:20:59.072 (2) <=BE ReadyForQuery(I)
{name,statement,is_holdable,is_binary,is_scrollable,creation_time}
14:20:59.077 (2) simple execute,
handler=org(dot)postgresql(dot)jdbc2(dot)AbstractJdbc2Statement$StatementResultHandler(at)3a5f2465,
maxRows=0, fetchSize=0, flags=16
14:20:59.077 (2) FE=> Bind(stmt=S_1,portal=null)
14:20:59.077 (2) FE=> Execute(portal=null,limit=0)
14:20:59.077 (2) FE=> Sync
14:20:59.078 (2) <=BE BindComplete [null]
14:20:59.078 (2) <=BE DataRow(len=103)
14:20:59.078 (2) <=BE CommandStatus(SELECT 1)
14:20:59.078 (2) <=BE ReadyForQuery(I)
null