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Add support for column alias.

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sub0Zero 2019-03-17 20:41:03 +01:00 • committed by zer0sub
parent 83a8b2b70f
commit 31736ec13e
2 changed files with 49 additions and 1 deletions
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14
sqlbuilder/column.go
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@ -16,6 +16,8 @@ type Column interface {
isProjectionInterface
isExpressionInterface
As(alias string) Column
Name() string
// Serialization for use in column lists
SerializeSqlForColumnList(out *bytes.Buffer) error
@ -74,6 +76,14 @@ type baseColumn struct {
name string
nullable NullableColumn
table string
alias string
}
func (c *baseColumn) As(alias string) Column {
newBaseColumn := *c
newBaseColumn.alias = alias
return &newBaseColumn
}
func (c *baseColumn) Name() string {
@ -89,7 +99,9 @@ func (c *baseColumn) SerializeSqlForColumnList(out *bytes.Buffer) error {
c.SerializeSql(out)
if c.table != "" {
if c.alias != "" {
_, _ = out.WriteString(" AS \"" + c.alias + "\"")
} else if c.table != "" {
_, _ = out.WriteString(" AS \"" + c.table + "." + c.name + "\"")
}