Shen Li e3597b6548 Add Datum.IsNull() fucntion (#1298) ...

Add IsNull function for Datum to simplify null check.

2016-06-07 23:35:25 +08:00

..

aggregation.go

rewrite executor. (#1294)

2016-06-07 20:32:15 +08:00

expression.go

Add Datum.IsNull() fucntion (#1298)

2016-06-07 23:35:25 +08:00