Description:
Generate a cluster in-memory table from a cluster entity table.
Syntax:
T.memory(C,…;w)
Note:
The function generates a cluster in-memory table, which inherits the zone table expression, from a cluster entity table T, which must have at least one dimension that is used to segment T and facilitates the segmentation. Clear a node’s memory at exit; will perform auto-clear when timeout occurs.
Parameter:
|
C |
A column name; import all columns when the parameter is omitted |
|
w |
Filtering condition; won’t perform filtering when the parameter is omitted |
|
T |
A cluster composite table’s entity table with dimensions |
Return value:
Cluster in-memory table object
Example:
|
|
A |
|
|
1 |
=file("emp1.ctx",["192.168.0.116:8281","192.168.0.129:8281"]) |
Open a cluster file. |
|
2 |
=A1.open() |
Generate a cluster table. |
|
3 |
=A2.attach(t1) |
Get cluster table t1. |
|
4 |
=A3.memory(NAME,GENDER;EID<5) |
Get columns NAME and GENDER with EID being less than 5 from t1 to generate an in-memory table. |