For example, a queryĪgainst tables in the case_insensitive_1 schema is forwarded to theĬaseSensitiveName schema and a query against case_insensitive_2 is forwardedĪt the table mapping level, a query on case_insensitive_1.table_1 asĬonfigured above is forwarded to CaseSensitiveName.tablex, and a query onĬase_insensitive_1.table_2 is forwarded to CaseSensitiveName.TABLEX.īy default, when a change is made to the mapping configuration file, Trino mustīe restarted to load the changes. Queries against one of the tables or schemes defined in the mappingĪttributes are run against the corresponding remote entity. The following example sets a simple comment that identifies each query sent by Variables from the Trino cluster with the comment, use the Information is available in the logs of the datasource. The comment can provide more context about the query. $TRACE_TOKEN: The trace token configured with the client tool. $SOURCE: The identifier of the client tool used to submit the query, for $USER: The name of the user who submits the query to Trino. The format of thisĬomment can contain any characters and the following metadata: The optional parameter ment-format allows you to configure a SQLĬomment that is sent to the datasource with each query. However, it can also increase latency for some queries. Using a large timeout can potentially result in more detailedĭynamic filters. Maximum duration for which Trino waits for dynamicįilters to be collected from the build side of joins before starting a Push down dynamic filters into JDBC queries. Maximum number of statements in a batched execution. Maximum number of objects stored in the metadata cache. Defaults to 0s (caching disabled).Ĭache the fact that metadata, including table and column statistics, isĭuration for which schema metadata is cached.ĭefaults to the value of metadata.cache-ttl.ĭuration for which table metadata is cached.ĭuration for which tables statistics are cached. The duration value defaults to 0sĭuration for which metadata, including table andĬolumn statistics, is cached. Trino to disambiguate between schemas and tables with similar names inĬ-periodįrequency with which Trino checks the name matching configuration fileįor changes. Path to a name mapping configuration file in JSON format that allows Defaults to false.ĭuration for which case insensitive schema and tableĬnfig-file Support case insensitive schema and table names. The following table describes general catalog configuration properties for the If you name the property file sales.properties, Trino creates aĬatalog named sales using the configured connector. With a different name, making sure it ends in. To add another catalog, simply add another properties file to etc/catalog Multiple instances of the PostgreSQL connector. Or want to connect to multiple PostgreSQL servers, you must configure Thus, if you have multiple PostgreSQL databases, The PostgreSQL connector can only access a single database withinĪ PostgreSQL server. Multiple PostgreSQL databases or servers # Password for the password key store entity. Name of the key store entity to use as the password. Password for the user name key store entity. Name of the key store entity to use as the user name. The location of the Java Keystore file, from which to read credentials.įile format of the keystore file, for example JKS or PEM. It mustĬontain the connection-user and connection-password properties. Location of the properties file where credentials are present. Name of the extra credentials property, whose value to use as the Name of the extra credentials property, whose value to use as the user The following table describes configuration properties You can use secrets to avoid storing sensitive Inline, in the connector configuration fileĪs extra credentials set when connecting to Trino The connector can provide credentials for the data source connection You can see more details in the pg_catalog schema in the example catalog,įor example about the pg_namespace system table:Ĭonnection-url = jdbc:postgresql://:5432/database?ssl=trueįor more information on TLS configuration options, see the PostgreSQL JDBCĭriver documentation. Using the postgresql.include-system-tables configuration property. The functionality is turned off by default, and can be enabled The PostgreSQL connector supports reading PostgreSQ catalog Use secrets to avoid actual values in the catalog The connection-user and connection-password are typically required andĭetermine the user credentials for the connection, often a service user. Some parameters can have adverse effects on the connector behavior or not work The parameters for the URL are available in the The connection-url defines the connection information and parameters to pass Multiple PostgreSQL databases or serversĬonnection-url=jdbc:postgresql://:5432/database.
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