Method: Gitlab::Database::MigrationHelpers#remove_column_default

Defined in:
lib/gitlab/database/migration_helpers.rb

#remove_column_default(table_name, column_name) ⇒ Object

While it is safe to call change_column_default on a column without default it would still require access exclusive lock on the table and for tables with high autovacuum(wraparound prevention) it will fail if their executions overlap.



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# File 'lib/gitlab/database/migration_helpers.rb', line 924

def remove_column_default(table_name, column_name)
  column = connection.columns(table_name).find { |col| col.name == column_name.to_s }

  if column.default || column.default_function
    change_column_default(table_name, column_name, to: nil)
  end
end