a PlanContext object whose scope is limited to a single executor node: it and its parameters will never be serialized. In addition to providing information about nodes involved in a query, it indicates how many threads are available and allocated for a load. This class is used for UDLs.
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a PlanContext object whose scope is limited to a single executor node: it and its parameters will never be serialized. In addition to providing information about nodes involved in a query, it indicates how many threads are available and allocated for a load. This class is used for UDLs.
ArrayList<String> com.vertica.sdk.PlanContext.getClusterNodes |
( |
| ) |
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inherited |
Get a list of all of the nodes in the current cluster, by node name
Get a read-only instance of the current context
ArrayList<String> com.vertica.sdk.NodeSpecifyingPlanContext.getTargetNodes |
( |
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inherited |
Return the set of nodes that this query is currently set to run on
void com.vertica.sdk.NodeSpecifyingPlanContext.setTargetNodes |
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ArrayList< String > |
nodes | ) |
throws UdfException |
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inherited |
Change the set of nodes that the query is intended to run on. Throws if any of the specified node names is not actually the name of any node in the cluster.
- Exceptions
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