Module: Google::Spanner::V1::PlanNode::Kind

Defined in:
lib/google/cloud/spanner/v1/doc/google/spanner/v1/query_plan.rb

Overview

The kind of PlanNode. Distinguishes between the two different kinds of nodes that can appear in a query plan.

Constant Summary collapse

KIND_UNSPECIFIED =

Not specified.

0
RELATIONAL =

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.

1
SCALAR =

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.

2