end
def alter_column_nwr_enum (table_name, column)
- execute "alter table #{table_name} change column #{column} #{column} enum('node','way','relation');"
+ execute "alter table #{table_name} change column #{column} #{column} enum('Node','Way','Relation');"
end
def alter_primary_key(table_name, new_columns)
execute("alter table #{table_name} drop primary key, add primary key (#{new_columns.join(',')})")
end
+
+ def interval_constant(interval)
+ "'#{interval}'"
+ end
end
class PostgreSQLAdapter
def alter_column_nwr_enum (table_name, column)
response = select_one("select count(*) as count from pg_type where typname = 'nwr_enum'")
if response['count'] == "0" #yep, as a string
- execute "create type nwr_enum as ENUM ('node', 'way', 'relation')"
+ execute "create type nwr_enum as ENUM ('Node', 'Way', 'Relation')"
end
execute "alter table #{table_name} drop #{column}"
execute "alter table #{table_name} add #{column} nwr_enum"
def alter_primary_key(table_name, new_columns)
execute "alter table #{table_name} drop constraint #{table_name}_pkey; alter table #{table_name} add primary key (#{new_columns.join(',')})"
end
+
+ def interval_constant(interval)
+ "'#{interval}'::interval"
+ end
+
+ def add_index(table_name, column_name, options = {})
+ column_names = Array(column_name)
+ index_name = index_name(table_name, :column => column_names)
+
+ if Hash === options # legacy support, since this param was a string
+ index_type = options[:unique] ? "UNIQUE" : ""
+ index_name = options[:name] || index_name
+ index_method = options[:method] || "BTREE"
+ else
+ index_type = options
+ end
+ quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ")
+ execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})"
+ end
end
end
end