CREATE WRAPPER wrapper ( init=function, next=function, done=function, [rescan=function] ) [WITH WRAPPERINFO key=value, [...] ]
The CREATE WRAPPER command groups together the functions which implement data acquisition with other configuration information. A wrapper consists of an initialization function, a next function, a done function and possibly a rescan function. For more information on these functions, please see the Wrapper clearinghouse documentation.
The name of the wrapper.
the name of the initialization function. This function must have previously been declared using the CREATE FUNCTION command.
the name of the next function. This function must have previously been declared using the CREATE FUNCTION command.
the name of the done function. This function must have previously been declared using the CREATE FUNCTION command.
the name of the rescan function. This function must have previously been declared using the CREATE FUNCTION command.
Each wrapper can optionally have a set of key/value pairs associated with it which provide configuration information. these values should be entered as a comma separated list of key=value pairs.
Create a wrapper which will process CSV data
CREATE WRAPPER mycsvwrapper (
init=csv_init,
next=csv_next,
done=csv_done);