Cloud Spanner API - Class Google::Cloud::Spanner::ColumnValue (v2.18.0)

Reference documentation and code samples for the Cloud Spanner API class Google::Cloud::Spanner::ColumnValue.

ColumnValue

Represents a change to be made to a row's column value by the Spanner API.

Inherits

  • Object

Example

require "google/cloud/spanner"

spanner = Google::Cloud::Spanner.new

db = spanner.client "my-instance", "my-database"

# create column value object
commit_timestamp = db.commit_timestamp

db.commit do |c|
  c.insert "users", [
    { id: 5, name: "Murphy", updated_at: commit_timestamp }
  ]
end

Methods

.commit_timestamp

def self.commit_timestamp() -> ColumnValue

Creates a column value object representing setting a field's value to the timestamp of the commit. (See Google::Cloud::Spanner::Client#commit_timestamp and Transaction#commit_timestamp)

This placeholder value can only be used for timestamp columns that have set the option "(allow_commit_timestamp=true)" in the schema.

Returns
  • (ColumnValue) — The commit timestamp column value object.
Example 
require "google/cloud/spanner"

spanner = Google::Cloud::Spanner.new

db = spanner.client "my-instance", "my-database"

# create column value object
commit_timestamp = \
  Google::Cloud::Spanner::ColumnValue.commit_timestamp

db.commit do |c|
  c.insert "users", [
    { id: 5, name: "Murphy", updated_at: commit_timestamp }
  ]
end