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Dialect refactor improvements and clean up.

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This commit is contained in:
go-jet 2019-08-06 10:29:04 +02:00
parent 23fd973699
commit 647ef21aaf
52 changed files with 1097 additions and 671 deletions
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112
postgres/postgres_cast.go
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@ -1,112 +0,0 @@
package postgres
import (
"fmt"
"github.com/go-jet/jet/internal/jet"
)
type cast interface {
jet.Cast
// Cast expression AS bool type
AS_BOOL() BoolExpression
// Cast expression AS smallint type
AS_SMALLINT() IntegerExpression
// Cast expression AS integer type
AS_INTEGER() IntegerExpression
// Cast expression AS bigint type
AS_BIGINT() IntegerExpression
// Cast expression AS numeric type, using precision and optionally scale
AS_NUMERIC(precision int, scale ...int) FloatExpression
// Cast expression AS real type
AS_REAL() FloatExpression
// Cast expression AS double precision type
AS_DOUBLE() FloatExpression
// Cast expression AS text type
AS_TEXT() StringExpression
// Cast expression AS time with time timezone type
AS_TIMEZ() TimezExpression
// Cast expression AS timestamp type
AS_TIMESTAMP() TimestampExpression
// Cast expression AS timestamp with timezone type
AS_TIMESTAMPZ() TimestampzExpression
}
type castImpl struct {
jet.CastImpl
}
func CAST(expr Expression) cast {
castImpl := &castImpl{}
castImpl.CastImpl = jet.NewCastImpl(expr)
return castImpl
}
func (b *castImpl) AS_BOOL() BoolExpression {
return jet.BoolExp(b.AS("boolean"))
}
func (b *castImpl) AS_SMALLINT() IntegerExpression {
return jet.IntExp(b.AS("smallint"))
}
// Cast expression AS integer type
func (b *castImpl) AS_INTEGER() IntegerExpression {
return jet.IntExp(b.AS("integer"))
}
// Cast expression AS bigint type
func (b *castImpl) AS_BIGINT() IntegerExpression {
return jet.IntExp(b.AS("bigint"))
}
// Cast expression AS numeric type, using precision and optionally scale
func (b *castImpl) AS_NUMERIC(precision int, scale ...int) FloatExpression {
var castType string
if len(scale) > 0 {
castType = fmt.Sprintf("numeric(%d, %d)", precision, scale[0])
} else {
castType = fmt.Sprintf("numeric(%d)", precision)
}
return jet.FloatExp(b.AS(castType))
}
// Cast expression AS real type
func (b *castImpl) AS_REAL() FloatExpression {
return jet.FloatExp(b.AS("real"))
}
// Cast expression AS double precision type
func (b *castImpl) AS_DOUBLE() FloatExpression {
return jet.FloatExp(b.AS("double precision"))
}
// Cast expression AS text type
func (b *castImpl) AS_TEXT() StringExpression {
return jet.StringExp(b.AS("text"))
}
// Cast expression AS date type
func (b *castImpl) AS_TIME() jet.TimeExpression {
return TimeExp(b.AS("time without time zone"))
}
// Cast expression AS time with time timezone type
func (b *castImpl) AS_TIMEZ() TimezExpression {
return jet.TimezExp(b.AS("time with time zone"))
}
// Cast expression AS timestamp type
func (b *castImpl) AS_TIMESTAMP() TimestampExpression {
return jet.TimestampExp(b.AS("timestamp without time zone"))
}
// Cast expression AS timestamp with timezone type
func (b *castImpl) AS_TIMESTAMPZ() TimestampzExpression {
return jet.TimestampzExp(b.AS("timestamp with time zone"))
}