--- title: base sidebar_label: base description: "Documentation for base database connection." hide_title: true --- {/* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */} import { DatabasePage } from '@site/src/components/databases'; export const databaseInfo = {"time_grains":{"SECOND":true,"FIVE_SECONDS":true,"THIRTY_SECONDS":true,"MINUTE":true,"FIVE_MINUTES":true,"TEN_MINUTES":true,"FIFTEEN_MINUTES":true,"THIRTY_MINUTES":false,"HALF_HOUR":true,"HOUR":true,"SIX_HOURS":true,"DAY":true,"WEEK":true,"WEEK_STARTING_SUNDAY":true,"WEEK_STARTING_MONDAY":true,"WEEK_ENDING_SATURDAY":true,"WEEK_ENDING_SUNDAY":true,"MONTH":true,"QUARTER":true,"QUARTER_YEAR":false,"YEAR":true},"module":"superset.db_engine_specs.presto","limit_method":1,"limit_clause":true,"joins":true,"subqueries":true,"alias_in_select":true,"alias_in_orderby":true,"time_groupby_inline":false,"alias_to_source_column":false,"order_by_not_in_select":true,"expressions_in_orderby":false,"cte_in_subquery":true,"max_column_name":null,"sql_comments":true,"escaped_colons":true,"masked_encrypted_extra":false,"column_type_mapping":true,"function_names":true,"user_impersonation":false,"file_upload":true,"get_extra_table_metadata":false,"dbapi_exception_mapping":false,"custom_errors":false,"dynamic_schema":true,"catalog":true,"dynamic_catalog":true,"ssh_tunneling":true,"query_cancelation":false,"get_metrics":false,"where_latest_partition":true,"expand_data":false,"query_cost_estimation":true,"sql_validation":false,"score":109,"max_score":201,"documentation":{"pypi_packages":[],"connection_string":"engine+driver://user:password@host:port/dbname[?key=value&key=value...]","category":"Other Databases","custom_errors":[{"regex_name":"COLUMN_DOES_NOT_EXIST_REGEX","message_template":"We can't seem to resolve the column \"%(column_name)s\" at line %(location)s.","error_type":"COLUMN_DOES_NOT_EXIST_ERROR","category":"Query","description":"Column not found","issue_codes":[1003,1004]},{"regex_name":"TABLE_DOES_NOT_EXIST_REGEX","message_template":"The table \"%(table_name)s\" does not exist. A valid table must be used to run this query.","error_type":"TABLE_DOES_NOT_EXIST_ERROR","category":"Query","description":"Table not found","issue_codes":[1003,1005]},{"regex_name":"SCHEMA_DOES_NOT_EXIST_REGEX","message_template":"The schema \"%(schema_name)s\" does not exist. A valid schema must be used to run this query.","error_type":"SCHEMA_DOES_NOT_EXIST_ERROR","category":"Query","description":"Schema not found","issue_codes":[1003,1016]},{"regex_name":"CONNECTION_ACCESS_DENIED_REGEX","message_template":"Either the username \"%(username)s\" or the password is incorrect.","error_type":"CONNECTION_ACCESS_DENIED_ERROR","category":"Authentication","description":"Access denied","issue_codes":[1014,1015]},{"regex_name":"CONNECTION_INVALID_HOSTNAME_REGEX","message_template":"The hostname \"%(hostname)s\" cannot be resolved.","error_type":"CONNECTION_INVALID_HOSTNAME_ERROR","category":"Connection","description":"Invalid hostname","issue_codes":[1007]},{"regex_name":"CONNECTION_HOST_DOWN_REGEX","message_template":"The host \"%(hostname)s\" might be down, and can't be reached on port %(port)s.","error_type":"CONNECTION_HOST_DOWN_ERROR","category":"Connection","description":"Host unreachable","issue_codes":[1009]},{"regex_name":"CONNECTION_PORT_CLOSED_REGEX","message_template":"Port %(port)s on hostname \"%(hostname)s\" refused the connection.","error_type":"CONNECTION_PORT_CLOSED_ERROR","category":"Connection","description":"Port closed or refused","issue_codes":[1008]},{"regex_name":"CONNECTION_UNKNOWN_DATABASE_ERROR","message_template":"Unable to connect to catalog named \"%(catalog_name)s\".","error_type":"CONNECTION_UNKNOWN_DATABASE_ERROR","category":"Connection","description":"Unknown database","issue_codes":[1015]}]},"engine":"base","engine_name":"base","engine_aliases":[],"default_driver":null,"supports_file_upload":true,"supports_dynamic_schema":true,"supports_catalog":true,"supports_dynamic_catalog":true};