- def myisam_table
- return { :id => false, :force => true, :options => ""}
- end
-
- def innodb_table
- return { :id => false, :force => true, :options => ""}
- end
-
- def innodb_option
- return ""
- end
-
- def change_engine (table_name, engine)
- end
-
- def add_fulltext_index (table_name, column)
- execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
- end
-
- 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')"
- end
- execute "alter table #{table_name} drop #{column}"
- execute "alter table #{table_name} add #{column} nwr_enum"
- end
-
- 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})"