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Add StringColumn type and expression

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Add Projection type
Alias refactoring
More numeric operations
This commit is contained in:
zer0sub 2019-04-03 11:03:07 +02:00
parent 033ab1d0da
commit b2f84d048c
16 changed files with 350 additions and 199 deletions
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10
sqlbuilder/select_statement.go
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@ -36,7 +36,7 @@ type selectStatementImpl struct {
expressionInterfaceImpl
table ReadableTable
projections []Expression
projections []Projection
where BoolExpression
group *listClause
having BoolExpression
@ -50,7 +50,7 @@ type selectStatementImpl struct {
func newSelectStatement(
table ReadableTable,
projections []Expression) SelectStatement {
projections []Projection) SelectStatement {
return &selectStatementImpl{
table: table,
@ -210,7 +210,7 @@ func (q *selectStatementImpl) String() (sql string, err error) {
"nil column selected. Generated sql: %s",
buf.String())
}
if err = col.SerializeSql(buf, FOR_PROJECTION); err != nil {
if err = col.SerializeForProjection(buf); err != nil {
return
}
}
@ -267,3 +267,7 @@ func (q *selectStatementImpl) String() (sql string, err error) {
return buf.String(), nil
}
func NumExp(statement SelectStatement) NumericExpression {
return newNumericExpressionWrap(statement)
}