Reference documentation and code samples for the Cloud Spanner V1 Client class Kind.
The kind of PlanNode. Distinguishes between the two different kinds of
nodes that can appear in a query plan.
Protobuf type google.spanner.v1.PlanNode.Kind
Namespace
Google \ Cloud \ Spanner \ V1 \ PlanNode
Methods
static::name
Parameter
Name
Description
value
mixed
static::value
Parameter
Name
Description
name
mixed
Constants
KIND_UNSPECIFIED
Value: 0
Not specified.
Generated from protobuf enum KIND_UNSPECIFIED = 0;
RELATIONAL
Value: 1
Denotes a Relational operator node in the expression tree. Relational
operators represent iterative processing of rows during query execution.
For example, a TableScan operation that reads rows from a table.
Generated from protobuf enum RELATIONAL = 1;
SCALAR
Value: 2
Denotes a Scalar node in the expression tree. Scalar nodes represent
non-iterable entities in the query plan. For example, constants or
arithmetic operators appearing inside predicate expressions or references
to column names.