public override DbExpression Visit(DbExistsExpression exp)
{
this._sqlBuilder.Append("Exists ");
DbSqlQueryExpression rawSqlQuery = exp.SqlQuery;
DbSqlQueryExpression sqlQuery = new DbSqlQueryExpression()
{
TakeCount = rawSqlQuery.TakeCount,
SkipCount = rawSqlQuery.SkipCount,
Table = rawSqlQuery.Table,
Condition = rawSqlQuery.Condition,
HavingCondition = rawSqlQuery.HavingCondition,
};
sqlQuery.GroupSegments.AddRange(rawSqlQuery.GroupSegments);
DbColumnSegment columnSegment = new DbColumnSegment(DbExpression.Constant("1"), "C");
sqlQuery.ColumnSegments.Add(columnSegment);
DbSubQueryExpression subQuery = new DbSubQueryExpression(sqlQuery);
return(subQuery.Accept(this));
}
public override DbExpression Visit(DbExistsExpression exp)
{
return(this.ConvertDbBooleanExpression(exp));
}