public void Lessers()
{
SqlInt64 Test10 = new SqlInt64(10);
SqlInt64 Test10II = new SqlInt64(10);
SqlInt64 Test110 = new SqlInt64(110);
// LessThan()
Assert.IsTrue(SqlInt64.LessThan(Test10, Test110).Value, "#L01");
Assert.IsTrue(!SqlInt64.LessThan(Test110, Test10).Value, "#L02");
Assert.IsTrue(!SqlInt64.LessThan(Test10II, Test10).Value, "#L03");
// LessThanOrEqual ()
Assert.IsTrue(SqlInt64.LessThanOrEqual(Test10, Test110).Value, "#L04");
Assert.IsTrue(!SqlInt64.LessThanOrEqual(Test110, Test10).Value, "#L05");
Assert.IsTrue(SqlInt64.LessThanOrEqual(Test10II, Test10).Value, "#L06");
Assert.IsTrue(SqlInt64.LessThanOrEqual(Test10II, SqlInt64.Null).IsNull, "#L07");
}
public void Lessers()
{
SqlInt64 test10 = new SqlInt64(10);
SqlInt64 test10II = new SqlInt64(10);
SqlInt64 test110 = new SqlInt64(110);
// LessThan()
Assert.True(SqlInt64.LessThan(test10, test110).Value);
Assert.False(SqlInt64.LessThan(test110, test10).Value);
Assert.False(SqlInt64.LessThan(test10II, test10).Value);
// LessThanOrEqual ()
Assert.True(SqlInt64.LessThanOrEqual(test10, test110).Value);
Assert.False(SqlInt64.LessThanOrEqual(test110, test10).Value);
Assert.True(SqlInt64.LessThanOrEqual(test10II, test10).Value);
Assert.True(SqlInt64.LessThanOrEqual(test10II, SqlInt64.Null).IsNull);
}
public override object Aggregate(int[] records, AggregateType kind)
{
bool hasData = false;
try
{
switch (kind)
{
case AggregateType.Sum:
SqlInt64 sum = 0;
foreach (int record in records)
{
if (IsNull(record))
{
continue;
}
checked { sum += _values[record]; }
hasData = true;
}
if (hasData)
{
return(sum);
}
return(_nullValue);
case AggregateType.Mean:
SqlDecimal meanSum = 0;
int meanCount = 0;
foreach (int record in records)
{
if (IsNull(record))
{
continue;
}
checked { meanSum += _values[record].ToSqlDecimal(); }
meanCount++;
hasData = true;
}
if (hasData)
{
SqlInt64 mean = 0;
checked { mean = (meanSum / meanCount).ToSqlInt64(); }
return(mean);
}
return(_nullValue);
case AggregateType.Var:
case AggregateType.StDev:
int count = 0;
SqlDouble var = 0;
SqlDouble prec = 0;
SqlDouble dsum = 0;
SqlDouble sqrsum = 0;
foreach (int record in records)
{
if (IsNull(record))
{
continue;
}
dsum += (_values[record]).ToSqlDouble();
sqrsum += (_values[record]).ToSqlDouble() * (_values[record]).ToSqlDouble();
count++;
}
if (count > 1)
{
var = count * sqrsum - (dsum * dsum);
prec = var / (dsum * dsum);
// we are dealing with the risk of a cancellation error
// double is guaranteed only for 15 digits so a difference
// with a result less than 1e-15 should be considered as zero
if ((prec < 1e-15) || (var < 0))
{
var = 0;
}
else
{
var = var / (count * (count - 1));
}
if (kind == AggregateType.StDev)
{
return(Math.Sqrt(var.Value));
}
return(var);
}
return(_nullValue);
case AggregateType.Min:
SqlInt64 min = SqlInt64.MaxValue;
for (int i = 0; i < records.Length; i++)
{
int record = records[i];
if (IsNull(record))
{
continue;
}
if ((SqlInt64.LessThan(_values[record], min)).IsTrue)
{
min = _values[record];
}
hasData = true;
}
if (hasData)
{
return(min);
}
return(_nullValue);
case AggregateType.Max:
SqlInt64 max = SqlInt64.MinValue;
for (int i = 0; i < records.Length; i++)
{
int record = records[i];
if (IsNull(record))
{
continue;
}
if ((SqlInt64.GreaterThan(_values[record], max)).IsTrue)
{
max = _values[record];
}
hasData = true;
}
if (hasData)
{
return(max);
}
return(_nullValue);
case AggregateType.First: // Does not seem to be implemented
if (records.Length > 0)
{
return(_values[records[0]]);
}
return(null !); // no data => null
case AggregateType.Count:
count = 0;
for (int i = 0; i < records.Length; i++)
{
if (!IsNull(records[i]))
{
count++;
}
}
return(count);
}
}
catch (OverflowException)
{
throw ExprException.Overflow(typeof(SqlInt64));
}
throw ExceptionBuilder.AggregateException(kind, _dataType);
}
public override object Aggregate(int[] records, AggregateType kind)
{
bool flag = false;
try
{
int num;
SqlDouble num2;
SqlDouble num3;
int num4;
int num5;
int num6;
int num7;
int num8;
int num9;
int num10;
int num11;
SqlInt64 minValue;
int num13;
SqlInt64 maxValue;
SqlDouble num15;
int num16;
SqlDecimal num17;
SqlInt64 num18;
int[] numArray;
SqlDouble num19;
int num21;
int[] numArray2;
int num22;
int[] numArray3;
switch (kind)
{
case AggregateType.Sum:
num18 = 0L;
numArray3 = records;
num10 = 0;
goto Label_0078;
case AggregateType.Mean:
num17 = 0L;
num16 = 0;
numArray2 = records;
num9 = 0;
goto Label_00EA;
case AggregateType.Min:
maxValue = SqlInt64.MaxValue;
num6 = 0;
goto Label_030F;
case AggregateType.Max:
minValue = SqlInt64.MinValue;
num5 = 0;
goto Label_038E;
case AggregateType.First:
if (records.Length <= 0)
{
return(null);
}
return(this.values[records[0]]);
case AggregateType.Count:
num = 0;
num4 = 0;
goto Label_03F3;
case AggregateType.Var:
case AggregateType.StDev:
num = 0;
num2 = 0.0;
num19 = 0.0;
num3 = 0.0;
num15 = 0.0;
numArray = records;
num8 = 0;
goto Label_01E2;
default:
goto Label_0418;
}
Label_0044:
num22 = numArray3[num10];
if (!this.IsNull(num22))
{
num18 += this.values[num22];
flag = true;
}
num10++;
Label_0078:
if (num10 < numArray3.Length)
{
goto Label_0044;
}
if (flag)
{
return(num18);
}
return(base.NullValue);
Label_00B0:
num21 = numArray2[num9];
if (!this.IsNull(num21))
{
num17 += this.values[num21].ToSqlDecimal();
num16++;
flag = true;
}
num9++;
Label_00EA:
if (num9 < numArray2.Length)
{
goto Label_00B0;
}
if (flag)
{
SqlDecimal num23 = num17 / ((long)num16);
return(num23.ToSqlInt64());
}
return(base.NullValue);
Label_017A:
num7 = numArray[num8];
if (!this.IsNull(num7))
{
num3 += this.values[num7].ToSqlDouble();
num15 += this.values[num7].ToSqlDouble() * this.values[num7].ToSqlDouble();
num++;
}
num8++;
Label_01E2:
if (num8 < numArray.Length)
{
goto Label_017A;
}
if (num <= 1)
{
return(base.NullValue);
}
num2 = ((SqlDouble)(num * num15)) - (num3 * num3);
num19 = num2 / (num3 * num3);
bool x = num19 < 1E-15;
if (!SqlBoolean.op_True(x))
{
}
if (SqlBoolean.op_True(x | (num2 < 0.0)))
{
num2 = 0.0;
}
else
{
num2 /= (double)(num * (num - 1));
}
if (kind == AggregateType.StDev)
{
return(Math.Sqrt(num2.Value));
}
return(num2);
Label_02BF:
num13 = records[num6];
if (!this.IsNull(num13))
{
if (SqlInt64.LessThan(this.values[num13], maxValue).IsTrue)
{
maxValue = this.values[num13];
}
flag = true;
}
num6++;
Label_030F:
if (num6 < records.Length)
{
goto Label_02BF;
}
if (flag)
{
return(maxValue);
}
return(base.NullValue);
Label_033E:
num11 = records[num5];
if (!this.IsNull(num11))
{
if (SqlInt64.GreaterThan(this.values[num11], minValue).IsTrue)
{
minValue = this.values[num11];
}
flag = true;
}
num5++;
Label_038E:
if (num5 < records.Length)
{
goto Label_033E;
}
if (flag)
{
return(minValue);
}
return(base.NullValue);
Label_03DD:
if (!this.IsNull(records[num4]))
{
num++;
}
num4++;
Label_03F3:
if (num4 < records.Length)
{
goto Label_03DD;
}
return(num);
}
catch (OverflowException)
{
throw ExprException.Overflow(typeof(SqlInt64));
}
Label_0418:
throw ExceptionBuilder.AggregateException(kind, base.DataType);
}