1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*-------------------------------------------------------------------------
*
* utility.h
* prototypes for utility.c.
*
*
* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/utility.h
*
*-------------------------------------------------------------------------
*/
#ifndef UTILITY_H
#define UTILITY_H
#include "tcop/tcopprot.h"
typedef enum
{
PROCESS_UTILITY_TOPLEVEL, /* toplevel interactive command */
PROCESS_UTILITY_QUERY, /* a complete query, but not toplevel */
PROCESS_UTILITY_QUERY_NONATOMIC, /* a complete query, nonatomic
* execution context */
PROCESS_UTILITY_SUBCOMMAND /* a portion of a query */
} ProcessUtilityContext;
/* Info needed when recursing from ALTER TABLE */
typedef struct AlterTableUtilityContext
{
PlannedStmt *pstmt; /* PlannedStmt for outer ALTER TABLE command */
const char *queryString; /* its query string */
Oid relid; /* OID of ALTER's target table */
ParamListInfo params; /* any parameters available to ALTER TABLE */
QueryEnvironment *queryEnv; /* execution environment for ALTER TABLE */
} AlterTableUtilityContext;
/* Hook for plugins to get control in ProcessUtility() */
typedef void (*ProcessUtility_hook_type) (PlannedStmt *pstmt,
const char *queryString, ProcessUtilityContext context,
ParamListInfo params,
QueryEnvironment *queryEnv,
DestReceiver *dest, char *completionTag);
extern PGDLLIMPORT ProcessUtility_hook_type ProcessUtility_hook;
extern void ProcessUtility(PlannedStmt *pstmt, const char *queryString,
ProcessUtilityContext context, ParamListInfo params,
QueryEnvironment *queryEnv,
DestReceiver *dest, char *completionTag);
extern void standard_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
ProcessUtilityContext context, ParamListInfo params,
QueryEnvironment *queryEnv,
DestReceiver *dest, char *completionTag);
extern void ProcessUtilityForAlterTable(Node *stmt,
AlterTableUtilityContext *context);
extern bool UtilityReturnsTuples(Node *parsetree);
extern TupleDesc UtilityTupleDescriptor(Node *parsetree);
extern Query *UtilityContainsQuery(Node *parsetree);
extern const char *CreateCommandTag(Node *parsetree);
extern LogStmtLevel GetCommandLogLevel(Node *parsetree);
extern bool CommandIsReadOnly(PlannedStmt *pstmt);
#endif /* UTILITY_H */
|
