Truncates the fractional seconds to three digits instead of rounding it. Selecting a timestamp with fractional second precision ( p) greater than 3 scale=s and map the column to DECIMAL(38, s). If s is negative, NUMBER(p, s) maps to DECIMAL(p + s, 0).įor Oracle NUMBER (without precision and scale), you can change Scale is negative and the difference between p and s is greater thanģ8, unless -mode is set to a different value than No precision is specified for the column (example: NUMBER or Mapping numeric types #Īn Oracle NUMBER(p, s) maps to Trino’s DECIMAL(p, s) except in these Tables, Oracle to Trino type mapping is used. The table shows the mappings from Trino to Oracle data types:įor types not listed in the table below, Trino can’t perform the CREATE TABLE AS SELECT operations. Trino supports creating tables with the following types in an Oracle database. Trino data type mapping: Oracle to Trino type mapping # Trino supports selecting Oracle database types. Refer to the following sections for type mapping inĮach direction. Data types may not map the same way in both directions between clicks Type mapping #īecause Trino and Oracle each support types that the other does not, thisĬonnector modifies some types when reading or Optionally, you can set theĬase-insensitive-name-mapping.refresh-period to have Trino refresh the 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. For example, the following system callįlushes the metadata caches for all schemas in the example catalog The domain-compaction-threshold catalog configuration property or theĭomain_compaction_threshold catalog session property can be used to adjust the default value ofįlush JDBC metadata caches. Increasing this threshold may improve pushdown of large Performance when the data source is capable of taking advantage of large If necessary, the threshold for this compaction can be increased to improve Trino compacts large predicates into a simpler range predicateīy default to ensure a balance between performance and predicate pushdown. Pushing down a large list of predicates to the data source can compromise 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 will wait 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.ĭo not change this setting from the default.
Maximum number of objects stored in the metadata cache
The duration for which metadata, includingĬache the fact that metadata, including table and column statistics, is 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 Support case insensitive schema and table names.Ĭnfig-file The following table describes general catalog configuration properties for the You name the property file sales.properties, Trino creates a catalog named To add another Oracle catalog, create a new properties file. The Oracle connector as a separate catalog. If you want to connect to multiple Oracle servers, configure another instance of
#SONONYM PLUG IN PASSWORD#
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 See extraCredentials in Parameter reference. 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
0 kommentar(er)
