public void PqsqlCommandTest17()
{
using (PqsqlCommand cmd =
new PqsqlCommand("select /*state*/'x' from /* xxx */ pg_stat_activity ", mConnection)
{
CommandType = CommandType.Text
})
{
PqsqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
string s = !r.IsDBNull(0) ? r.GetString(0) : null;
}
}
}
public void PqsqlCommandTest19()
{
using (PqsqlCommand cmd =
new PqsqlCommand("select state from pg_stat_activity -- no semicolon", mConnection)
{
CommandType = CommandType.Text
})
{
PqsqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
string s = !r.IsDBNull(0) ? r.GetString(0) : null;
}
}
}
public void PqsqlDataReaderTest11()
{
mCmd.CommandText = @"select null, ''::varchar, '你', '好'::text, '吗'::char(1), 'x'::""char"" ;";
using (PqsqlDataReader reader = mCmd.ExecuteReader())
{
Assert.IsTrue(reader.HasRows);
reader.Read();
char c1 = reader.GetChar(1);
string s1 = reader.GetString(1);
char c2 = reader.GetChar(2);
string s2 = reader.GetString(2);
char c3 = reader.GetChar(3);
string s3 = reader.GetString(3);
char c4 = reader.GetChar(4);
string s4 = reader.GetString(4);
char c5 = reader.GetChar(5);
string s5 = reader.GetString(5);
Assert.IsTrue(reader.IsDBNull(0));
Assert.AreEqual(default(char), c1);
Assert.AreEqual(string.Empty, s1);
Assert.AreEqual('你', c2);
Assert.AreEqual("你", s2);
Assert.AreEqual('好', c3);
Assert.AreEqual("好", s3);
Assert.AreEqual('吗', c4);
Assert.AreEqual("吗", s4);
Assert.AreEqual('x', c5);
Assert.AreEqual("x", s5);
reader.Close();
}
}
public void PqsqlCommandTest11()
{
PqsqlCommand cmd = new PqsqlCommand("select :p1;", mConnection);
cmd.CommandType = CommandType.Text;
// recursive parameters
PqsqlParameter p1 = cmd.Parameters.AddWithValue(":p1", ":p1");
PqsqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
string s = r.GetString(0);
Assert.AreEqual(p1.Value, s);
}
}
public void PqsqlTypeRegistryTest3()
{
mCmd.CommandText = "select 'YES'::information_schema.yes_or_no;";
mCmd.CommandType = CommandType.Text;
PqsqlDataReader reader = mCmd.ExecuteReader();
bool read = reader.Read();
Assert.IsTrue(read);
string yes = reader.GetString(0);
Assert.AreEqual("YES", yes);
read = reader.Read();
Assert.IsFalse(read);
}
public void PqsqlCopyFromTest2()
{
PqsqlTransaction tran = mConnection.BeginTransaction();
mCmd.Transaction = tran;
mCmd.CommandText = "CREATE TEMP TABLE temp (id int4, val int4, txt text)";
mCmd.CommandTimeout = 200;
mCmd.CommandType = CommandType.Text;
const int upperbound = 2000000;
const string text = "text value with ü and ä ";
int q = mCmd.ExecuteNonQuery();
Assert.AreEqual(0, q);
PqsqlCopyFrom copy = new PqsqlCopyFrom(mConnection)
{
Table = "temp",
CopyTimeout = 30
};
copy.Start();
for (int i = 0; i < upperbound; i++)
{
int j = copy.WriteInt4(i);
Assert.AreEqual(4, j);
j = copy.WriteInt4(i);
Assert.AreEqual(4, j);
j = copy.WriteText(text + i);
Assert.AreEqual(Encoding.UTF8.GetByteCount(text + i), j); // length without nul byte
}
copy.WriteNull(); // id
copy.WriteNull(); // val
copy.WriteNull(); // txt
copy.End();
copy.Close();
mCmd.CommandText = "select * from temp";
mCmd.CommandTimeout = 30;
mCmd.CommandType = CommandType.Text;
PqsqlDataReader r = mCmd.ExecuteReader();
int n = 0;
int k = 0;
while (r.Read())
{
if (n++ == upperbound)
{
Assert.IsTrue(r.IsDBNull(0));
Assert.IsTrue(r.IsDBNull(1));
Assert.IsTrue(r.IsDBNull(2));
}
else
{
Assert.AreEqual(k, r.GetInt32(0));
Assert.AreEqual(k, r.GetInt32(1));
Assert.AreEqual(text + k, r.GetString(2));
k++;
}
}
Assert.AreEqual(upperbound + 1, n);
r.Close();
tran.Rollback();
}
public void PqsqlDataReaderTest6()
{
const string qs = @"select ARRAY[0,1,2,3,42,null,4711]::_text, :p7, unnest(:p6), unnest(:p8) ;
select interval '20 days', interval '123 secs', interval '20 years 10 months', now(), :p4, timestamp 'infinity', timestamp '-infinity', date 'infinity', date '-infinity';
select 123.456::numeric, :p3::text ;
select 'NaN'::numeric, '-1234567898765432123456789.87654321'::numeric ;
select generate_series(1,1000000),generate_series(1,1000000);
select generate_series(1,1000000),generate_series(1,1000000);
select :p1,:p2::text ;
select extract(epoch from date_trunc('day',current_date - :p9 ))::integer " ;
const int p1_val = -1;
const int p2_val = 2;
const int p3_val = -3;
const double p4_val = 3.1415925;
decimal p5_val = decimal.Parse("123456789,87654321");
int[] p6_arr = { 1, 42, 4711, 0815 };
const string p7_0 = "1 string mit ü and ä sowie 0";
const string p7_1 = "2 string mit ü and ä sowie 🐨";
const string p7_2 = "42 string mit ü and ä sowie е́";
const string p7_3 = "0815 string mit ü and ä sowie П";
decimal[] p8_arr = { decimal.MinValue, 1.23M, 12.345M, -123.4567M, decimal.MaxValue };
const int p9_val = 47;
mCmd.CommandText = qs;
mCmd.CommandTimeout = 20;
PqsqlParameter p1 = mCmd.CreateParameter();
p1.ParameterName = "p1";
p1.Value = p1_val;
p1.DbType = DbType.Int32;
PqsqlParameter p2 = mCmd.CreateParameter();
p2.ParameterName = "p2";
p2.Value = p2_val;
p2.DbType = DbType.Int32;
PqsqlParameter p3 = mCmd.CreateParameter();
p3.ParameterName = "p3";
p3.Value = p3_val;
p3.DbType = DbType.Int32;
PqsqlParameter p4 = mCmd.CreateParameter();
p4.ParameterName = "p4";
p4.Value = p4_val;
p4.DbType = DbType.Double;
PqsqlParameter p5 = mCmd.CreateParameter();
p5.ParameterName = "p5";
p5.Value = p5_val;
p5.DbType = DbType.Decimal;
PqsqlParameter p6 = mCmd.CreateParameter();
p6.ParameterName = "p6";
p6.Value = p6_arr;
p6.PqsqlDbType = PqsqlDbType.Array | PqsqlDbType.Int4;
PqsqlParameter p7 = mCmd.CreateParameter();
p7.ParameterName = "p7";
Array b = Array.CreateInstance(typeof(string), new int[] { 4 }, new int[] { -1 });
b.SetValue(p7_0, -1);
b.SetValue(p7_1, 0);
b.SetValue(p7_2, 1);
b.SetValue(p7_3, 2);
p7.Value = b;
p7.PqsqlDbType = PqsqlDbType.Array | PqsqlDbType.Text;
PqsqlParameter p8 = mCmd.CreateParameter();
p8.ParameterName = "p8";
Array c = Array.CreateInstance(typeof(decimal), new int[] { 5 }, new int[] { -2 });
c.SetValue(p8_arr[0], -2);
c.SetValue(p8_arr[1], -1);
c.SetValue(p8_arr[2], 0);
c.SetValue(p8_arr[3], 1);
c.SetValue(p8_arr[4], 2);
p8.Value = c;
p8.PqsqlDbType = PqsqlDbType.Array | PqsqlDbType.Numeric;
PqsqlParameter p9 = mCmd.CreateParameter();
p9.ParameterName = "p9";
p9.Value = p9_val;
// let Pqsql guess the parameter type
mCmd.Parameters.Add(p1);
mCmd.Parameters.Add(p2);
mCmd.Parameters.Add(p3);
mCmd.Parameters.Add(p4);
mCmd.Parameters.Add(p5);
mCmd.Parameters.Add(p6);
mCmd.Parameters.Add(p7);
mCmd.Parameters.Add(p8);
mCmd.Parameters.Add(p9);
PqsqlTransaction t = mConnection.BeginTransaction();
mCmd.Transaction = t;
PqsqlDataReader r = mCmd.ExecuteReader();
int p6_rt = 0;
//int p8_rt = 0;
// select ARRAY[0,1,2,3,42,null,4711]::_text, :p7, unnest(:p6), unnest(:p8)
while (r.Read())
{
object o0 = r.GetValue(0);
object o1 = r.GetValue(1);
object o2 = r.GetValue(2);
object o3 = r.GetValue(3);
Array arr = (Array)o0;
Assert.AreEqual("0", arr.GetValue(1));
Assert.AreEqual("1", arr.GetValue(2));
Assert.AreEqual("2", arr.GetValue(3));
Assert.AreEqual("3", arr.GetValue(4));
Assert.AreEqual("42", arr.GetValue(5));
Assert.AreEqual(null, arr.GetValue(6));
Assert.AreEqual("4711", arr.GetValue(7));
arr = (Array)o1;
Assert.AreEqual(p7_0, arr.GetValue(1));
Assert.AreEqual(p7_1, arr.GetValue(2));
Assert.AreEqual(p7_2, arr.GetValue(3));
Assert.AreEqual(p7_3, arr.GetValue(4));
Assert.AreEqual(p6_arr[p6_rt++ % 4], o2);
// TODO decimal vs. double: decimal.MinValue cast to double does not work here
//Assert.AreEqual(p8_arr[p8_rt++], o3);
}
bool next = r.NextResult();
Assert.IsTrue(next);
// select interval '20 days', interval '123 secs', interval '20 years 10 months', now(), :p4, timestamp 'infinity', timestamp '-infinity', date 'infinity', date '-infinity'
while (r.Read())
{
TimeSpan s = r.GetTimeSpan(0);
Assert.AreEqual(TimeSpan.FromDays(20), s);
s = r.GetTimeSpan(1);
Assert.AreEqual(TimeSpan.FromSeconds(123), s);
s = r.GetTimeSpan(2);
Assert.AreEqual(TimeSpan.FromDays(7609), s);
DateTime d = r.GetDateTime(3);
TimeSpan diff = DateTime.UtcNow - d;
Assert.IsTrue(diff < TimeSpan.FromHours(1));
Assert.IsTrue(-diff < TimeSpan.FromHours(1));
double db = r.GetDouble(4);
Assert.AreEqual(p4_val, db);
d = r.GetDateTime(5);
Assert.AreEqual(DateTime.MaxValue, d);
d = r.GetDateTime(6);
Assert.AreEqual(DateTime.MinValue, d);
d = r.GetDateTime(7);
Assert.AreEqual(DateTime.MaxValue, d);
d = r.GetDateTime(8);
Assert.AreEqual(DateTime.MinValue, d);
}
next = r.NextResult();
Assert.IsTrue(next);
// select 123.456::numeric, :p3::text
while (r.Read())
{
decimal dec = r.GetDecimal(0);
Assert.AreEqual(123.456M, dec);
string str = r.GetString(1);
Assert.AreEqual(p3_val.ToString(), str);
}
t.Commit();
next = r.NextResult();
Assert.IsTrue(next);
// select 'NaN'::numeric, '-1234567898765432123456789.87654321'::numeric
while (r.Read())
{
double dou = r.GetDouble(0);
Assert.AreEqual(Double.NaN, dou);
dou = r.GetDouble(1);
Assert.AreEqual(decimal.ToDouble(-1234567898765432123456789.87654321M), dou);
}
next = r.NextResult();
Assert.IsTrue(next);
int comp = 1;
// select generate_series(1,1000000),generate_series(1,1000000)
while (r.Read())
{
int gen = r.GetInt32(0);
Assert.AreEqual(comp++, gen);
}
next = r.NextResult();
Assert.IsTrue(next);
comp = 1;
// select generate_series(1,1000000),generate_series(1,1000000)
while (r.Read())
{
int gen = r.GetInt32(0);
Assert.AreEqual(comp++, gen);
}
Assert.AreEqual(1000001, comp);
next = r.NextResult();
Assert.IsTrue(next);
comp = 0;
// select :p1,:p2::text
while (r.Read())
{
int i = r.GetInt32(0);
string st = r.GetString(1);
Assert.AreEqual(p1_val, i);
string p2s = Convert.ToString(p2_val);
Assert.AreEqual(p2s, st);
comp++;
}
Assert.AreEqual(1, comp);
next = r.NextResult();
Assert.IsTrue(next);
comp = 0;
// select extract(epoch from date_trunc('day',current_date - :p9 ))::integer
while (r.Read())
{
int i = r.GetInt32(0);
int unix = (int)DateTime.UtcNow.Subtract(new TimeSpan(p9_val, 0, 0, 0)).Date.Subtract(new DateTime(1970, 1, 1)).TotalSeconds;
Assert.AreEqual(unix, i);
comp++;
}
next = r.NextResult();
Assert.IsFalse(next);
r.Close();
r.Dispose();
}
