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doc: Add missing include in example code 

It's not broken because the header file is included via other headers,
but for better style we should be more explicit.

Reported-by: mthrockmorton@hme.com
This commit is contained in:
Peter Eisentraut 2017-02-02 16:49:46 -05:00
parent c82d4e658e
commit aa09b9dcd5
1 changed files with 1 additions and 0 deletions
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doc/src/sgml/trigger.sgml
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@ -705,6 +705,7 @@ CREATE TABLE ttest (
This is the source code of the trigger function:
<programlisting><![CDATA[
#include "postgres.h"
#include "fmgr.h"
#include "executor/spi.h" /* this is what you need to work with SPI */
#include "commands/trigger.h" /* ... triggers ... */
#include "utils/rel.h" /* ... and relations */