![]() ![]() Inside Anatella, the rowFilter Action always performs a “full table scan”: It reads all the rows of the input table and outputs only the desired rows (This is because the. There exists however one data-transformation-operation where the SQLite engine *might* be faster than the standard Anatella engine: It’s the rowFilter Action. If you need to perfom large data transformations, you should always use the Anatella Engine rather than the SQLite Engine. The SQLite engine has been included inside Anatella mainly for the purpose of “easy data exchange” between applications (and not to perform heavy-duty data transformations using SQL). If you need to perform large and complex data transformations, avoid using the SQLite engine because it’s a lot slower (and less scalable) than the standard Anatella data transformations (i.e. These features make SQLite a popular choice as a convenient file format to exchange data between different applications.Īlthough the SQLite engine is one of the fastest database engine available, you should NOT use it to perform “heavy” data transformations on Big Data. This make SQLite databases particularly resilient and reliable. Inside SQLite, All transactions are ACID (Atomicity, Consistency, Isolation, Durability) even if interrupted by system crashes or power failures. The database file format is 100% cross-platform. A complete SQL database with multiple tables, indices, triggers, and views, is contained in a single disk file. The SQLite engine reads and writes directly to ordinary disk files. The SQLite engine runs directly inside the Anatella process. Unlike most other SQL databases, SQLite does not have a separate server process. SQLite is an embedded SQL database engine. SQLite is the most widely deployed SQL database engine in the world. SQLite files are self-contained, serverless, zero-configuration, transactional SQL databases. ![]() Duration values can also be specified as a sequence of decimal numbers, each with optional fraction and unit suffix, such as 300ms, 1.5h, or 1m30s.Launch the execution of SQLite SQL statement(s) based on (several) SQLite database(s). When provided as a raw number, the value is interpreted as nanoseconds. durationĪ value specifying a length of time. Defaults for multi-string configuration properties are not overridden when additional values are configured. For example, providing Color = "black" and Color = "blue" results in two separate values. The property name is listed with each individual input value. multi-stringĪ property that takes multiple string values. Please refer to the Posit Administrative Tool appendix for more information on using the rscadmin CLI tool. However, in this case Connect logs a message on startup saying that the value should have been encrypted. For convenience and backwards compatibility, plain text values are accepted. Encrypted values are tied to the Posit Connect installation that generated them in most cases. But to generate an encrypted string one needs to enter the plain text value as-is (no quotes or escaping) in the command rscadmin encrypt-config-value which outputs the encrypted version of the entered value. The rules on how the value is taken from the file are the same as for the regular string type. encrypted-stringĪ potentially encrypted sequence of characters. Strings containing the comment characters and # MUST be quoted.Ī literal backslash MUST be quoted and escaped like SlashValue = "first\\second". A literal double quote MUST itself be quoted and escaped like QuotedValue = "J.R. The value is taken as all characters from the first non-whitespace character after equal sign to the last non-whitespace character before the end-of-line or start of a comment.ĭouble quoting ( ") of strings is recommended. Property TypesĬonfiguration properties all have one of the following types: stringĪ sequence of characters. ![]() If Animal is a normal string property, only the value “dog” is retained. If Color is a multi-string property, both the “black” and “blue” values are used. Color = "black" Color = "blue" Animal = "cat" Animal = "dog" KubernetesContentServiceAccountSelection. ![]()
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