September 26, 2024: PostgreSQL 17 Released!
Unsupported versions: 7.4 / 7.3 / 7.2 / 7.1
This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the current version, or one of the other supported versions listed above instead.

pg_exec

Name

pg_exec -- send a query string to the backend

Synopsis

pg_exec dbHandle queryString

Inputs

dbHandle

Specifies a valid database handle.

queryString

Specifies a valid SQL query.

Outputs

resultHandle

A Tcl error will be returned if Pgtcl was unable to obtain a backend response. Otherwise, a query result object is created and a handle for it is returned. This handle can be passed to pg_result to obtain the results of the query.

Description

pg_exec submits a query to the Postgres backend and returns a result. Query result handles start with the connection handle and add a period and a result number.

Note that lack of a Tcl error is not proof that the query succeeded! An error message returned by the backend will be processed as a query result with failure status, not by generating a Tcl error in pg_exec.