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Aggregate functions

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This commit is contained in:
zer0sub 2019-06-03 18:28:16 +02:00
parent dca028295d
commit d69c67569a
5 changed files with 159 additions and 59 deletions
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57
sqlbuilder/func_expression.go
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@ -10,10 +10,6 @@ type funcExpressionImpl struct {
noBrackets bool
}
func ROW(expressions ...expression) expression {
return newFunc("ROW", expressions, nil)
}
func newFunc(name string, expressions []expression, parent expression) *funcExpressionImpl {
funcExp := &funcExpressionImpl{
name: name,
@ -53,6 +49,9 @@ func (f *funcExpressionImpl) serialize(statement statementType, out *queryData,
return nil
}
func ROW(expressions ...expression) expression {
return newFunc("ROW", expressions, nil)
}
type boolFunc struct {
funcExpressionImpl
@ -240,7 +239,39 @@ func LOG(floatExpression FloatExpression) FloatExpression {
return newFloatFunc("LOG", floatExpression)
}
// ----------------- Group function operators -------------------//
// ----------------- Aggregate functions -------------------//
func AVGf(floatExpression FloatExpression) FloatExpression {
return newFloatFunc("AVG", floatExpression)
}
func AVGi(integerExpression IntegerExpression) FloatExpression {
return newFloatFunc("AVG", integerExpression)
}
func BIT_AND(integerExpression IntegerExpression) IntegerExpression {
return newIntegerFunc("BIT_AND", integerExpression)
}
func BIT_OR(integerExpression IntegerExpression) IntegerExpression {
return newIntegerFunc("BIT_OR", integerExpression)
}
func BOOL_AND(boolExpression BoolExpression) BoolExpression {
return newBoolFunc("BOOL_AND", boolExpression)
}
func BOOL_OR(boolExpression BoolExpression) BoolExpression {
return newBoolFunc("BOOL_OR", boolExpression)
}
func COUNT(expression expression) IntegerExpression {
return newIntegerFunc("COUNT", expression)
}
func EVERY(boolExpression BoolExpression) BoolExpression {
return newBoolFunc("EVERY", boolExpression)
}
func MAXf(floatExpression FloatExpression) FloatExpression {
return newFloatFunc("MAX", floatExpression)
@ -250,6 +281,14 @@ func MAXi(integerExpression IntegerExpression) IntegerExpression {
return newIntegerFunc("MAX", integerExpression)
}
func MINf(floatExpression FloatExpression) FloatExpression {
return newFloatFunc("MIN", floatExpression)
}
func MINi(integerExpression IntegerExpression) IntegerExpression {
return newIntegerFunc("MIN", integerExpression)
}
func SUMf(floatExpression FloatExpression) FloatExpression {
return newFloatFunc("SUM", floatExpression)
}
@ -258,14 +297,6 @@ func SUMi(integerExpression IntegerExpression) IntegerExpression {
return newIntegerFunc("SUM", integerExpression)
}
func COUNTf(floatExpression FloatExpression) FloatExpression {
return newFloatFunc("COUNT", floatExpression)
}
func COUNTi(integerExpression IntegerExpression) IntegerExpression {
return newIntegerFunc("COUNT", integerExpression)
}
//------------ String functions ------------------//
func BIT_LENGTH(stringExpression StringExpression) IntegerExpression {