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9.5 Basic Statements

In this section and the following ones, we describe all the statement types that are explicitly understood by PL/pgSQL. Anything not recognized as one of these statement types is presumed to be an SQL command and is sent to the main database engine to execute, as described in section 9.5.2 Executing a Command With No Result and section 9.5.3 Executing a Query with a Single-Row Result.