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Latest Docs. Get Help. This page in other versions: Latest 5. You must have superuser privileges to use the debugger. Before using the debugger, you must modify the postgresql. The debugger may be used for either in-context debugging or direct debugging of a target function or procedure. When you use the debugger for in-context debugging, you set a breakpoint at the first line of a program; when a session invokes the target, control is transferred to the debugger.
When using direct debugging, the debugger prompts you for any parameters required by the target, and then allows you to step through the code. To set a breakpoint at the first line of a program, right-click the name of the object you would like to debug, and select Set breakpoint from the Debugging sub-menu.
The debugger window will open, waiting for another session to invoke the program. When another session invokes the target, the debugger will display the code, allowing you to add break points, or step through line-by-line. The other session is suspended until the debugging completes; then control is returned to the session. To use the debugger for direct debugging, right click on the name of the object that you wish to debug in the pgAdmin tree control and select Debug from the Debugging sub-menu.
The debugger window will open, prompting you for any values required by the program:. Use the Value field to provide the parameter value that will be passed to the program. PostgreSQL 8. Check the Use default? Provide values required by the program, and click the Debug button to start stepping through the program. The values of the arguments provided here are saved. The values will be pre-filled next time the dialog opens.
To clear the values, use the Clear All button. The main debugger window consists of two panels and a context-sensitive toolbar. Use toolbar icons to manage breakpoints and step into or through code; hover over an icon for a tooltip that identifies the option associated with the icon. The toolbar options are:. Click the Step over icon to execute a line of code, stepping over any sub-functions invoked by the code.
The sub-function executes, but is not debugged unless it contains a breakpoint. Use the Toggle breakpoint icon to enable or disable a breakpoint without removing the breakpoint. The top panel of the debugger window displays the program body; click in the grey margin next to a line number to add a breakpoint. The highlighted line in the top panel is the line that is about to execute.
The lower panel of the debugger window provides a set of tabs that allow you to review information about the program:. The Messages tab displays any messages returned by the server errors, warnings and informational messages. The Stack tab displays the list of functions that have been invoked, but which have not yet completed.
As you step through a program, the Local variables tab displays the current value of each variable:. When you step into a subroutine, the Stack tab displays the call stack, including the name of each caller, the parameter values for each caller if any , and the line number within each caller:. Select a caller to change focus to that stack frame and display the state of the caller in the upper panel. When the program completes, the Results tab displays the message returned by the server.
If the program encounters an error, the Messages tab displays details:. Introduction Resources Style Guide Translations. Introduction Screenshots Videos pgAdmin 4: Version 5. Introduction Mailing List Issues. The Name field contains the formal parameter name.
The Type field contains the parameter data type. Check the Null? Check the Expression? The Default Value field contains the default value of the parameter. The Parameters tab displays the value of each parameter.
The Local variables tab displays the current value of the program variables. The Results tab displays the server message when the program completes. Click the Clear all breakpoints icon to remove all breakpoints from the program.
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