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Editorialize a bit on new ProcessUtility() API.

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Choose a saner ordering of parameters (adding a new input param after
the output params seemed a bit random), update the function's header
comment to match reality (cmon folks, is this really that hard?),
get rid of useless and sloppily-defined distinction between
PROCESS_UTILITY_SUBCOMMAND and PROCESS_UTILITY_GENERATED.
This commit is contained in:
Tom Lane
2013-04-28 00:18:45 -04:00
parent 5525e6c40b
commit f8db76e875
10 changed files with 80 additions and 68 deletions
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17
src/include/tcop/utility.h
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@@ -20,23 +20,22 @@ typedef enum
{
PROCESS_UTILITY_TOPLEVEL, /* toplevel interactive command */
PROCESS_UTILITY_QUERY, /* a complete query, but not toplevel */
PROCESS_UTILITY_SUBCOMMAND, /* a piece of a query */
PROCESS_UTILITY_GENERATED /* internally generated node query node */
PROCESS_UTILITY_SUBCOMMAND /* a portion of a query */
} ProcessUtilityContext;
/* Hook for plugins to get control in ProcessUtility() */
typedef void (*ProcessUtility_hook_type) (Node *parsetree,
const char *queryString, ParamListInfo params,
DestReceiver *dest, char *completionTag,
ProcessUtilityContext context);
const char *queryString, ProcessUtilityContext context,
ParamListInfo params,
DestReceiver *dest, char *completionTag);
extern PGDLLIMPORT ProcessUtility_hook_type ProcessUtility_hook;
extern void ProcessUtility(Node *parsetree, const char *queryString,
ParamListInfo params, DestReceiver *dest, char *completionTag,
ProcessUtilityContext context);
ProcessUtilityContext context, ParamListInfo params,
DestReceiver *dest, char *completionTag);
extern void standard_ProcessUtility(Node *parsetree, const char *queryString,
ParamListInfo params, DestReceiver *dest,
char *completionTag, ProcessUtilityContext context);
ProcessUtilityContext context, ParamListInfo params,
DestReceiver *dest, char *completionTag);
extern bool UtilityReturnsTuples(Node *parsetree);