DBE_PLDEBUGGER.attach

When the server executes a stored procedure, the server hangs the execution before the first statement and waits for attaching with the debug end. The debug end invokes the attach function and transfers node name and port number to attach with the specified stored procedure, as described in Table 1.

If an error is reported during debugging, the attach operation automatically becomes invalid. If the debug end is attached to another stored procedure during debugging, the debugging of the attached stored procedure becomes invalid. If the attach operation is performed repeatedly, the current stored procedure is disconnected.

**Table 1** attach input parameters and return values
Name	Type	Description
nodename	IN text	Node name.
port	IN integer	Connection port number.
funcoid	OUT oid	Function ID.
funcname	OUT text	Function name.
lineno	OUT integer	Number of the next line in the current debugging process.
query	OUT text	Source code of the next line of the function that is being debugged.