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blue-lemon0104
2026-04-07 13:35:22 +08:00
commit 0120fa9ce3
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58
db_include/tcop/cmdtag.h Executable file
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/*-------------------------------------------------------------------------
*
* cmdtag.h
* Declarations for commandtag names and enumeration.
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/cmdtag.h
*
*-------------------------------------------------------------------------
*/
#ifndef CMDTAG_H
#define CMDTAG_H
#define PG_CMDTAG(tag, name, evtrgok, rwrok, rowcnt) \
tag,
typedef enum CommandTag
{
#include "tcop/cmdtaglist.h"
COMMAND_TAG_NEXTTAG
} CommandTag;
#undef PG_CMDTAG
typedef struct QueryCompletion
{
CommandTag commandTag;
uint64 nprocessed;
} QueryCompletion;
static inline void
SetQueryCompletion(QueryCompletion *qc, CommandTag commandTag,
uint64 nprocessed)
{
qc->commandTag = commandTag;
qc->nprocessed = nprocessed;
}
static inline void
CopyQueryCompletion(QueryCompletion *dst, const QueryCompletion *src)
{
dst->commandTag = src->commandTag;
dst->nprocessed = src->nprocessed;
}
extern void InitializeQueryCompletion(QueryCompletion *qc);
extern const char *GetCommandTagName(CommandTag commandTag);
extern bool command_tag_display_rowcount(CommandTag commandTag);
extern bool command_tag_event_trigger_ok(CommandTag commandTag);
extern bool command_tag_table_rewrite_ok(CommandTag commandTag);
extern CommandTag GetCommandTagEnum(const char *tagname);
#endif /* CMDTAG_H */

217
db_include/tcop/cmdtaglist.h Executable file
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/*----------------------------------------------------------------------
*
* cmdtaglist.h
* Command tags
*
* The command tag list is kept in its own source file for possible use
* by automatic tools. The exact representation of a command tag is
* determined by the PG_CMDTAG macro, which is not defined in this file;
* it can be defined by the caller for special purposes.
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/cmdtaglist.h
*
*----------------------------------------------------------------------
*/
/* there is deliberately not an #ifndef CMDTAGLIST_H here */
/*
* List of command tags. The entries must be sorted alphabetically on their
* textual name, so that we can bsearch on it; see GetCommandTagEnum().
*/
/* symbol name, textual name, event_trigger_ok, table_rewrite_ok, rowcount */
PG_CMDTAG(CMDTAG_UNKNOWN, "???", false, false, false)
PG_CMDTAG(CMDTAG_ALTER_ACCESS_METHOD, "ALTER ACCESS METHOD", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_AGGREGATE, "ALTER AGGREGATE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_CAST, "ALTER CAST", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_COLLATION, "ALTER COLLATION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_CONSTRAINT, "ALTER CONSTRAINT", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_CONVERSION, "ALTER CONVERSION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_DATABASE, "ALTER DATABASE", false, false, false)
PG_CMDTAG(CMDTAG_ALTER_DEFAULT_PRIVILEGES, "ALTER DEFAULT PRIVILEGES", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_DOMAIN, "ALTER DOMAIN", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_EVENT_TRIGGER, "ALTER EVENT TRIGGER", false, false, false)
PG_CMDTAG(CMDTAG_ALTER_EXTENSION, "ALTER EXTENSION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_FOREIGN_DATA_WRAPPER, "ALTER FOREIGN DATA WRAPPER", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_FOREIGN_TABLE, "ALTER FOREIGN TABLE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_FUNCTION, "ALTER FUNCTION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_INDEX, "ALTER INDEX", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_LANGUAGE, "ALTER LANGUAGE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_LARGE_OBJECT, "ALTER LARGE OBJECT", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_MATERIALIZED_VIEW, "ALTER MATERIALIZED VIEW", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_OPERATOR, "ALTER OPERATOR", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_OPERATOR_CLASS, "ALTER OPERATOR CLASS", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_OPERATOR_FAMILY, "ALTER OPERATOR FAMILY", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_POLICY, "ALTER POLICY", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_PROCEDURE, "ALTER PROCEDURE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_PUBLICATION, "ALTER PUBLICATION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_ROLE, "ALTER ROLE", false, false, false)
PG_CMDTAG(CMDTAG_ALTER_ROUTINE, "ALTER ROUTINE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_RULE, "ALTER RULE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_SCHEMA, "ALTER SCHEMA", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_SEQUENCE, "ALTER SEQUENCE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_SERVER, "ALTER SERVER", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_STATISTICS, "ALTER STATISTICS", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_SUBSCRIPTION, "ALTER SUBSCRIPTION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_SYSTEM, "ALTER SYSTEM", false, false, false)
PG_CMDTAG(CMDTAG_ALTER_TABLE, "ALTER TABLE", true, true, false)
PG_CMDTAG(CMDTAG_ALTER_TABLESPACE, "ALTER TABLESPACE", false, false, false)
PG_CMDTAG(CMDTAG_ALTER_TEXT_SEARCH_CONFIGURATION, "ALTER TEXT SEARCH CONFIGURATION", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_TEXT_SEARCH_DICTIONARY, "ALTER TEXT SEARCH DICTIONARY", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_TEXT_SEARCH_PARSER, "ALTER TEXT SEARCH PARSER", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_TEXT_SEARCH_TEMPLATE, "ALTER TEXT SEARCH TEMPLATE", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_TRANSFORM, "ALTER TRANSFORM", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_TRIGGER, "ALTER TRIGGER", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_TYPE, "ALTER TYPE", true, true, false)
PG_CMDTAG(CMDTAG_ALTER_USER_MAPPING, "ALTER USER MAPPING", true, false, false)
PG_CMDTAG(CMDTAG_ALTER_VIEW, "ALTER VIEW", true, false, false)
PG_CMDTAG(CMDTAG_ANALYZE, "ANALYZE", false, false, false)
PG_CMDTAG(CMDTAG_BEGIN, "BEGIN", false, false, false)
PG_CMDTAG(CMDTAG_CALL, "CALL", false, false, false)
PG_CMDTAG(CMDTAG_CHECKPOINT, "CHECKPOINT", false, false, false)
PG_CMDTAG(CMDTAG_CLOSE, "CLOSE", false, false, false)
PG_CMDTAG(CMDTAG_CLOSE_CURSOR, "CLOSE CURSOR", false, false, false)
PG_CMDTAG(CMDTAG_CLOSE_CURSOR_ALL, "CLOSE CURSOR ALL", false, false, false)
PG_CMDTAG(CMDTAG_CLUSTER, "CLUSTER", false, false, false)
PG_CMDTAG(CMDTAG_COMMENT, "COMMENT", true, false, false)
PG_CMDTAG(CMDTAG_COMMIT, "COMMIT", false, false, false)
PG_CMDTAG(CMDTAG_COMMIT_PREPARED, "COMMIT PREPARED", false, false, false)
PG_CMDTAG(CMDTAG_COPY, "COPY", false, false, true)
PG_CMDTAG(CMDTAG_COPY_FROM, "COPY FROM", false, false, false)
PG_CMDTAG(CMDTAG_CREATE_ACCESS_METHOD, "CREATE ACCESS METHOD", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_AGGREGATE, "CREATE AGGREGATE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_CAST, "CREATE CAST", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_COLLATION, "CREATE COLLATION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_CONSTRAINT, "CREATE CONSTRAINT", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_CONVERSION, "CREATE CONVERSION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_DATABASE, "CREATE DATABASE", false, false, false)
PG_CMDTAG(CMDTAG_CREATE_DOMAIN, "CREATE DOMAIN", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_EVENT_TRIGGER, "CREATE EVENT TRIGGER", false, false, false)
PG_CMDTAG(CMDTAG_CREATE_EXTENSION, "CREATE EXTENSION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_FOREIGN_DATA_WRAPPER, "CREATE FOREIGN DATA WRAPPER", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_FOREIGN_TABLE, "CREATE FOREIGN TABLE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_FUNCTION, "CREATE FUNCTION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_INDEX, "CREATE INDEX", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_LANGUAGE, "CREATE LANGUAGE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_MATERIALIZED_VIEW, "CREATE MATERIALIZED VIEW", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_OPERATOR, "CREATE OPERATOR", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_OPERATOR_CLASS, "CREATE OPERATOR CLASS", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_OPERATOR_FAMILY, "CREATE OPERATOR FAMILY", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_POLICY, "CREATE POLICY", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_PROCEDURE, "CREATE PROCEDURE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_PUBLICATION, "CREATE PUBLICATION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_ROLE, "CREATE ROLE", false, false, false)
PG_CMDTAG(CMDTAG_CREATE_ROUTINE, "CREATE ROUTINE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_RULE, "CREATE RULE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_SCHEMA, "CREATE SCHEMA", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_SEQUENCE, "CREATE SEQUENCE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_SERVER, "CREATE SERVER", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_STATISTICS, "CREATE STATISTICS", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_SUBSCRIPTION, "CREATE SUBSCRIPTION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TABLE, "CREATE TABLE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TABLE_AS, "CREATE TABLE AS", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TABLESPACE, "CREATE TABLESPACE", false, false, false)
PG_CMDTAG(CMDTAG_CREATE_TEXT_SEARCH_CONFIGURATION, "CREATE TEXT SEARCH CONFIGURATION", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TEXT_SEARCH_DICTIONARY, "CREATE TEXT SEARCH DICTIONARY", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TEXT_SEARCH_PARSER, "CREATE TEXT SEARCH PARSER", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TEXT_SEARCH_TEMPLATE, "CREATE TEXT SEARCH TEMPLATE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TRANSFORM, "CREATE TRANSFORM", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TRIGGER, "CREATE TRIGGER", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_TYPE, "CREATE TYPE", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_USER_MAPPING, "CREATE USER MAPPING", true, false, false)
PG_CMDTAG(CMDTAG_CREATE_VIEW, "CREATE VIEW", true, false, false)
PG_CMDTAG(CMDTAG_DEALLOCATE, "DEALLOCATE", false, false, false)
PG_CMDTAG(CMDTAG_DEALLOCATE_ALL, "DEALLOCATE ALL", false, false, false)
PG_CMDTAG(CMDTAG_DECLARE_CURSOR, "DECLARE CURSOR", false, false, false)
PG_CMDTAG(CMDTAG_DELETE, "DELETE", false, false, true)
PG_CMDTAG(CMDTAG_DISCARD, "DISCARD", false, false, false)
PG_CMDTAG(CMDTAG_DISCARD_ALL, "DISCARD ALL", false, false, false)
PG_CMDTAG(CMDTAG_DISCARD_PLANS, "DISCARD PLANS", false, false, false)
PG_CMDTAG(CMDTAG_DISCARD_SEQUENCES, "DISCARD SEQUENCES", false, false, false)
PG_CMDTAG(CMDTAG_DISCARD_TEMP, "DISCARD TEMP", false, false, false)
PG_CMDTAG(CMDTAG_DO, "DO", false, false, false)
PG_CMDTAG(CMDTAG_DROP_ACCESS_METHOD, "DROP ACCESS METHOD", true, false, false)
PG_CMDTAG(CMDTAG_DROP_AGGREGATE, "DROP AGGREGATE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_CAST, "DROP CAST", true, false, false)
PG_CMDTAG(CMDTAG_DROP_COLLATION, "DROP COLLATION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_CONSTRAINT, "DROP CONSTRAINT", true, false, false)
PG_CMDTAG(CMDTAG_DROP_CONVERSION, "DROP CONVERSION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_DATABASE, "DROP DATABASE", false, false, false)
PG_CMDTAG(CMDTAG_DROP_DOMAIN, "DROP DOMAIN", true, false, false)
PG_CMDTAG(CMDTAG_DROP_EVENT_TRIGGER, "DROP EVENT TRIGGER", false, false, false)
PG_CMDTAG(CMDTAG_DROP_EXTENSION, "DROP EXTENSION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_FOREIGN_DATA_WRAPPER, "DROP FOREIGN DATA WRAPPER", true, false, false)
PG_CMDTAG(CMDTAG_DROP_FOREIGN_TABLE, "DROP FOREIGN TABLE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_FUNCTION, "DROP FUNCTION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_INDEX, "DROP INDEX", true, false, false)
PG_CMDTAG(CMDTAG_DROP_LANGUAGE, "DROP LANGUAGE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_MATERIALIZED_VIEW, "DROP MATERIALIZED VIEW", true, false, false)
PG_CMDTAG(CMDTAG_DROP_OPERATOR, "DROP OPERATOR", true, false, false)
PG_CMDTAG(CMDTAG_DROP_OPERATOR_CLASS, "DROP OPERATOR CLASS", true, false, false)
PG_CMDTAG(CMDTAG_DROP_OPERATOR_FAMILY, "DROP OPERATOR FAMILY", true, false, false)
PG_CMDTAG(CMDTAG_DROP_OWNED, "DROP OWNED", true, false, false)
PG_CMDTAG(CMDTAG_DROP_POLICY, "DROP POLICY", true, false, false)
PG_CMDTAG(CMDTAG_DROP_PROCEDURE, "DROP PROCEDURE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_PUBLICATION, "DROP PUBLICATION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_ROLE, "DROP ROLE", false, false, false)
PG_CMDTAG(CMDTAG_DROP_ROUTINE, "DROP ROUTINE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_RULE, "DROP RULE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_SCHEMA, "DROP SCHEMA", true, false, false)
PG_CMDTAG(CMDTAG_DROP_SEQUENCE, "DROP SEQUENCE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_SERVER, "DROP SERVER", true, false, false)
PG_CMDTAG(CMDTAG_DROP_STATISTICS, "DROP STATISTICS", true, false, false)
PG_CMDTAG(CMDTAG_DROP_SUBSCRIPTION, "DROP SUBSCRIPTION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TABLE, "DROP TABLE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TABLESPACE, "DROP TABLESPACE", false, false, false)
PG_CMDTAG(CMDTAG_DROP_TEXT_SEARCH_CONFIGURATION, "DROP TEXT SEARCH CONFIGURATION", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TEXT_SEARCH_DICTIONARY, "DROP TEXT SEARCH DICTIONARY", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TEXT_SEARCH_PARSER, "DROP TEXT SEARCH PARSER", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TEXT_SEARCH_TEMPLATE, "DROP TEXT SEARCH TEMPLATE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TRANSFORM, "DROP TRANSFORM", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TRIGGER, "DROP TRIGGER", true, false, false)
PG_CMDTAG(CMDTAG_DROP_TYPE, "DROP TYPE", true, false, false)
PG_CMDTAG(CMDTAG_DROP_USER_MAPPING, "DROP USER MAPPING", true, false, false)
PG_CMDTAG(CMDTAG_DROP_VIEW, "DROP VIEW", true, false, false)
PG_CMDTAG(CMDTAG_EXECUTE, "EXECUTE", false, false, false)
PG_CMDTAG(CMDTAG_EXPLAIN, "EXPLAIN", false, false, false)
PG_CMDTAG(CMDTAG_FETCH, "FETCH", false, false, true)
PG_CMDTAG(CMDTAG_GRANT, "GRANT", true, false, false)
PG_CMDTAG(CMDTAG_GRANT_ROLE, "GRANT ROLE", false, false, false)
PG_CMDTAG(CMDTAG_IMPORT_FOREIGN_SCHEMA, "IMPORT FOREIGN SCHEMA", true, false, false)
PG_CMDTAG(CMDTAG_INSERT, "INSERT", false, false, true)
PG_CMDTAG(CMDTAG_LISTEN, "LISTEN", false, false, false)
PG_CMDTAG(CMDTAG_LOAD, "LOAD", false, false, false)
PG_CMDTAG(CMDTAG_LOCK_TABLE, "LOCK TABLE", false, false, false)
PG_CMDTAG(CMDTAG_MOVE, "MOVE", false, false, true)
PG_CMDTAG(CMDTAG_NOTIFY, "NOTIFY", false, false, false)
PG_CMDTAG(CMDTAG_PREPARE, "PREPARE", false, false, false)
PG_CMDTAG(CMDTAG_PREPARE_TRANSACTION, "PREPARE TRANSACTION", false, false, false)
PG_CMDTAG(CMDTAG_REASSIGN_OWNED, "REASSIGN OWNED", false, false, false)
PG_CMDTAG(CMDTAG_REFRESH_MATERIALIZED_VIEW, "REFRESH MATERIALIZED VIEW", true, false, false)
PG_CMDTAG(CMDTAG_REINDEX, "REINDEX", false, false, false)
PG_CMDTAG(CMDTAG_RELEASE, "RELEASE", false, false, false)
PG_CMDTAG(CMDTAG_RESET, "RESET", false, false, false)
PG_CMDTAG(CMDTAG_REVOKE, "REVOKE", true, false, false)
PG_CMDTAG(CMDTAG_REVOKE_ROLE, "REVOKE ROLE", false, false, false)
PG_CMDTAG(CMDTAG_ROLLBACK, "ROLLBACK", false, false, false)
PG_CMDTAG(CMDTAG_ROLLBACK_PREPARED, "ROLLBACK PREPARED", false, false, false)
PG_CMDTAG(CMDTAG_SAVEPOINT, "SAVEPOINT", false, false, false)
PG_CMDTAG(CMDTAG_SECURITY_LABEL, "SECURITY LABEL", true, false, false)
PG_CMDTAG(CMDTAG_SELECT, "SELECT", false, false, true)
PG_CMDTAG(CMDTAG_SELECT_FOR_KEY_SHARE, "SELECT FOR KEY SHARE", false, false, false)
PG_CMDTAG(CMDTAG_SELECT_FOR_NO_KEY_UPDATE, "SELECT FOR NO KEY UPDATE", false, false, false)
PG_CMDTAG(CMDTAG_SELECT_FOR_SHARE, "SELECT FOR SHARE", false, false, false)
PG_CMDTAG(CMDTAG_SELECT_FOR_UPDATE, "SELECT FOR UPDATE", false, false, false)
PG_CMDTAG(CMDTAG_SELECT_INTO, "SELECT INTO", true, false, false)
PG_CMDTAG(CMDTAG_SET, "SET", false, false, false)
PG_CMDTAG(CMDTAG_SET_CONSTRAINTS, "SET CONSTRAINTS", false, false, false)
PG_CMDTAG(CMDTAG_SHOW, "SHOW", false, false, false)
PG_CMDTAG(CMDTAG_START_TRANSACTION, "START TRANSACTION", false, false, false)
PG_CMDTAG(CMDTAG_TRUNCATE_TABLE, "TRUNCATE TABLE", false, false, false)
PG_CMDTAG(CMDTAG_UNLISTEN, "UNLISTEN", false, false, false)
PG_CMDTAG(CMDTAG_UPDATE, "UPDATE", false, false, true)
PG_CMDTAG(CMDTAG_VACUUM, "VACUUM", false, false, false)

108
db_include/tcop/deparse_utility.h Executable file
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/*-------------------------------------------------------------------------
*
* deparse_utility.h
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/deparse_utility.h
*
*-------------------------------------------------------------------------
*/
#ifndef DEPARSE_UTILITY_H
#define DEPARSE_UTILITY_H
#include "access/attnum.h"
#include "catalog/objectaddress.h"
#include "nodes/nodes.h"
#include "utils/aclchk_internal.h"
/*
* Support for keeping track of collected commands.
*/
typedef enum CollectedCommandType
{
SCT_Simple,
SCT_AlterTable,
SCT_Grant,
SCT_AlterOpFamily,
SCT_AlterDefaultPrivileges,
SCT_CreateOpClass,
SCT_AlterTSConfig
} CollectedCommandType;
/*
* For ALTER TABLE commands, we keep a list of the subcommands therein.
*/
typedef struct CollectedATSubcmd
{
ObjectAddress address; /* affected column, constraint, index, ... */
Node *parsetree;
} CollectedATSubcmd;
typedef struct CollectedCommand
{
CollectedCommandType type;
bool in_extension;
Node *parsetree;
union
{
/* most commands */
struct
{
ObjectAddress address;
ObjectAddress secondaryObject;
} simple;
/* ALTER TABLE, and internal uses thereof */
struct
{
Oid objectId;
Oid classId;
List *subcmds;
} alterTable;
/* GRANT / REVOKE */
struct
{
InternalGrant *istmt;
} grant;
/* ALTER OPERATOR FAMILY */
struct
{
ObjectAddress address;
List *operators;
List *procedures;
} opfam;
/* CREATE OPERATOR CLASS */
struct
{
ObjectAddress address;
List *operators;
List *procedures;
} createopc;
/* ALTER TEXT SEARCH CONFIGURATION ADD/ALTER/DROP MAPPING */
struct
{
ObjectAddress address;
Oid *dictIds;
int ndicts;
} atscfg;
/* ALTER DEFAULT PRIVILEGES */
struct
{
ObjectType objtype;
} defprivs;
} d;
struct CollectedCommand *parent; /* when nested */
} CollectedCommand;
#endif /* DEPARSE_UTILITY_H */

149
db_include/tcop/dest.h Executable file
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/*-------------------------------------------------------------------------
*
* dest.h
* support for communication destinations
*
* Whenever the backend executes a query that returns tuples, the results
* have to go someplace. For example:
*
* - stdout is the destination only when we are running a
* standalone backend (no postmaster) and are returning results
* back to an interactive user.
*
* - a remote process is the destination when we are
* running a backend with a frontend and the frontend executes
* PQexec() or PQfn(). In this case, the results are sent
* to the frontend via the functions in backend/libpq.
*
* - DestNone is the destination when the system executes
* a query internally. The results are discarded.
*
* dest.c defines three functions that implement destination management:
*
* BeginCommand: initialize the destination at start of command.
* CreateDestReceiver: return a pointer to a struct of destination-specific
* receiver functions.
* EndCommand: clean up the destination at end of command.
*
* BeginCommand/EndCommand are executed once per received SQL query.
*
* CreateDestReceiver returns a receiver object appropriate to the specified
* destination. The executor, as well as utility statements that can return
* tuples, are passed the resulting DestReceiver* pointer. Each executor run
* or utility execution calls the receiver's rStartup method, then the
* receiveSlot method (zero or more times), then the rShutdown method.
* The same receiver object may be re-used multiple times; eventually it is
* destroyed by calling its rDestroy method.
*
* In some cases, receiver objects require additional parameters that must
* be passed to them after calling CreateDestReceiver. Since the set of
* parameters varies for different receiver types, this is not handled by
* this module, but by direct calls from the calling code to receiver type
* specific functions.
*
* The DestReceiver object returned by CreateDestReceiver may be a statically
* allocated object (for destination types that require no local state),
* in which case rDestroy is a no-op. Alternatively it can be a palloc'd
* object that has DestReceiver as its first field and contains additional
* fields (see printtup.c for an example). These additional fields are then
* accessible to the DestReceiver functions by casting the DestReceiver*
* pointer passed to them. The palloc'd object is pfree'd by the rDestroy
* method. Note that the caller of CreateDestReceiver should take care to
* do so in a memory context that is long-lived enough for the receiver
* object not to disappear while still needed.
*
* Special provision: None_Receiver is a permanently available receiver
* object for the DestNone destination. This avoids useless creation/destroy
* calls in portal and cursor manipulations.
*
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/dest.h
*
*-------------------------------------------------------------------------
*/
#ifndef DEST_H
#define DEST_H
#include "executor/tuptable.h"
#include "tcop/cmdtag.h"
/* buffer size to use for command completion tags */
#define COMPLETION_TAG_BUFSIZE 64
/* ----------------
* CommandDest is a simplistic means of identifying the desired
* destination. Someday this will probably need to be improved.
*
* Note: only the values DestNone, DestDebug, DestRemote are legal for the
* global variable whereToSendOutput. The other values may be used
* as the destination for individual commands.
* ----------------
*/
typedef enum
{
DestNone, /* results are discarded */
DestDebug, /* results go to debugging output */
DestRemote, /* results sent to frontend process */
DestRemoteExecute, /* sent to frontend, in Execute command */
DestRemoteSimple, /* sent to frontend, w/no catalog access */
DestSPI, /* results sent to SPI manager */
DestTuplestore, /* results sent to Tuplestore */
DestIntoRel, /* results sent to relation (SELECT INTO) */
DestCopyOut, /* results sent to COPY TO code */
DestSQLFunction, /* results sent to SQL-language func mgr */
DestTransientRel, /* results sent to transient relation */
DestTupleQueue /* results sent to tuple queue */
} CommandDest;
/* ----------------
* DestReceiver is a base type for destination-specific local state.
* In the simplest cases, there is no state info, just the function
* pointers that the executor must call.
*
* Note: the receiveSlot routine must be passed a slot containing a TupleDesc
* identical to the one given to the rStartup routine. It returns bool where
* a "true" value means "continue processing" and a "false" value means
* "stop early, just as if we'd reached the end of the scan".
* ----------------
*/
typedef struct _DestReceiver DestReceiver;
struct _DestReceiver
{
/* Called for each tuple to be output: */
bool (*receiveSlot) (TupleTableSlot *slot,
DestReceiver *self);
/* Per-executor-run initialization and shutdown: */
void (*rStartup) (DestReceiver *self,
int operation,
TupleDesc typeinfo);
void (*rShutdown) (DestReceiver *self);
/* Destroy the receiver object itself (if dynamically allocated) */
void (*rDestroy) (DestReceiver *self);
/* CommandDest code for this receiver */
CommandDest mydest;
/* Private fields might appear beyond this point... */
};
extern PGDLLIMPORT DestReceiver *None_Receiver; /* permanent receiver for
* DestNone */
/* The primary destination management functions */
extern void BeginCommand(CommandTag commandTag, CommandDest dest);
extern DestReceiver *CreateDestReceiver(CommandDest dest);
extern void EndCommand(const QueryCompletion *qc, CommandDest dest,
bool force_undecorated_output);
extern void EndReplicationCommand(const char *commandTag);
/* Additional functions that go with destination management, more or less. */
extern void NullCommand(CommandDest dest);
extern void ReadyForQuery(CommandDest dest);
#endif /* DEST_H */

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/*-------------------------------------------------------------------------
*
* fastpath.h
*
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/fastpath.h
*
*-------------------------------------------------------------------------
*/
#ifndef FASTPATH_H
#define FASTPATH_H
#include "lib/stringinfo.h"
extern void HandleFunctionRequest(StringInfo msgBuf);
#endif /* FASTPATH_H */

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/*-------------------------------------------------------------------------
*
* pquery.h
* prototypes for pquery.c.
*
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/pquery.h
*
*-------------------------------------------------------------------------
*/
#ifndef PQUERY_H
#define PQUERY_H
#include "nodes/parsenodes.h"
#include "utils/portal.h"
struct PlannedStmt; /* avoid including plannodes.h here */
extern PGDLLIMPORT Portal ActivePortal;
extern PortalStrategy ChoosePortalStrategy(List *stmts);
extern List *FetchPortalTargetList(Portal portal);
extern List *FetchStatementTargetList(Node *stmt);
extern void PortalStart(Portal portal, ParamListInfo params,
int eflags, Snapshot snapshot);
extern void PortalSetResultFormat(Portal portal, int nFormats,
int16 *formats);
extern bool PortalRun(Portal portal, long count, bool isTopLevel,
bool run_once, DestReceiver *dest, DestReceiver *altdest,
QueryCompletion *qc);
extern uint64 PortalRunFetch(Portal portal,
FetchDirection fdirection,
long count,
DestReceiver *dest);
extern bool PlannedStmtRequiresSnapshot(struct PlannedStmt *pstmt);
extern void EnsurePortalSnapshotExists(void);
#endif /* PQUERY_H */

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/*-------------------------------------------------------------------------
*
* tcopprot.h
* prototypes for postgres.c.
*
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/tcopprot.h
*
*-------------------------------------------------------------------------
*/
#ifndef TCOPPROT_H
#define TCOPPROT_H
#include "nodes/params.h"
#include "nodes/parsenodes.h"
#include "nodes/plannodes.h"
#include "storage/procsignal.h"
#include "utils/guc.h"
#include "utils/queryenvironment.h"
/* Required daylight between max_stack_depth and the kernel limit, in bytes */
#define STACK_DEPTH_SLOP (512 * 1024L)
extern CommandDest whereToSendOutput;
extern PGDLLIMPORT const char *debug_query_string;
extern int max_stack_depth;
extern int PostAuthDelay;
extern int client_connection_check_interval;
/* GUC-configurable parameters */
typedef enum
{
LOGSTMT_NONE, /* log no statements */
LOGSTMT_DDL, /* log data definition statements */
LOGSTMT_MOD, /* log modification statements, plus DDL */
LOGSTMT_ALL /* log all statements */
} LogStmtLevel;
extern PGDLLIMPORT int log_statement;
extern List *pg_parse_query(const char *query_string);
extern List *pg_rewrite_query(Query *query);
extern List *pg_analyze_and_rewrite(RawStmt *parsetree,
const char *query_string,
Oid *paramTypes, int numParams,
QueryEnvironment *queryEnv);
extern List *pg_analyze_and_rewrite_params(RawStmt *parsetree,
const char *query_string,
ParserSetupHook parserSetup,
void *parserSetupArg,
QueryEnvironment *queryEnv);
extern PlannedStmt *pg_plan_query(Query *querytree, const char *query_string,
int cursorOptions,
ParamListInfo boundParams);
extern List *pg_plan_queries(List *querytrees, const char *query_string,
int cursorOptions,
ParamListInfo boundParams);
extern bool check_max_stack_depth(int *newval, void **extra, GucSource source);
extern void assign_max_stack_depth(int newval, void *extra);
extern void die(SIGNAL_ARGS);
extern void quickdie(SIGNAL_ARGS) pg_attribute_noreturn();
extern void StatementCancelHandler(SIGNAL_ARGS);
extern void FloatExceptionHandler(SIGNAL_ARGS) pg_attribute_noreturn();
extern void RecoveryConflictInterrupt(ProcSignalReason reason); /* called from SIGUSR1
* handler */
extern void ProcessClientReadInterrupt(bool blocked);
extern void ProcessClientWriteInterrupt(bool blocked);
extern void process_postgres_switches(int argc, char *argv[],
GucContext ctx, const char **dbname);
extern void PostgresMain(int argc, char *argv[],
const char *dbname,
const char *username) pg_attribute_noreturn();
extern long get_stack_depth_rlimit(void);
extern void ResetUsage(void);
extern void ShowUsage(const char *title);
extern int check_log_duration(char *msec_str, bool was_logged);
extern void set_debug_options(int debug_flag,
GucContext context, GucSource source);
extern bool set_plan_disabling_options(const char *arg,
GucContext context, GucSource source);
extern const char *get_stats_option_name(const char *arg);
#endif /* TCOPPROT_H */

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/*-------------------------------------------------------------------------
*
* utility.h
* prototypes for utility.c.
*
*
* Portions Copyright (c) 1996-2021, 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/cmdtag.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;
/*
* These constants are used to describe the extent to which a particular
* command is read-only.
*
* COMMAND_OK_IN_READ_ONLY_TXN means that the command is permissible even when
* XactReadOnly is set. This bit should be set for commands that don't change
* the state of the database (data or schema) in a way that would affect the
* output of pg_dump.
*
* COMMAND_OK_IN_PARALLEL_MODE means that the command is permissible even
* when in parallel mode. Writing tuples is forbidden, as is anything that
* might confuse cooperating processes.
*
* COMMAND_OK_IN_RECOVERY means that the command is permissible even when in
* recovery. It can't write WAL, nor can it do things that would imperil
* replay of future WAL received from the primary.
*/
#define COMMAND_OK_IN_READ_ONLY_TXN 0x0001
#define COMMAND_OK_IN_PARALLEL_MODE 0x0002
#define COMMAND_OK_IN_RECOVERY 0x0004
/*
* We say that a command is strictly read-only if it is sufficiently read-only
* for all purposes. For clarity, we also have a constant for commands that are
* in no way read-only.
*/
#define COMMAND_IS_STRICTLY_READ_ONLY \
(COMMAND_OK_IN_READ_ONLY_TXN | COMMAND_OK_IN_RECOVERY | \
COMMAND_OK_IN_PARALLEL_MODE)
#define COMMAND_IS_NOT_READ_ONLY 0
/* Hook for plugins to get control in ProcessUtility() */
typedef void (*ProcessUtility_hook_type) (PlannedStmt *pstmt,
const char *queryString,
bool readOnlyTree,
ProcessUtilityContext context,
ParamListInfo params,
QueryEnvironment *queryEnv,
DestReceiver *dest, QueryCompletion *qc);
extern PGDLLIMPORT ProcessUtility_hook_type ProcessUtility_hook;
extern void ProcessUtility(PlannedStmt *pstmt, const char *queryString,
bool readOnlyTree,
ProcessUtilityContext context, ParamListInfo params,
QueryEnvironment *queryEnv,
DestReceiver *dest, QueryCompletion *qc);
extern void standard_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
bool readOnlyTree,
ProcessUtilityContext context, ParamListInfo params,
QueryEnvironment *queryEnv,
DestReceiver *dest, QueryCompletion *qc);
extern void ProcessUtilityForAlterTable(Node *stmt,
AlterTableUtilityContext *context);
extern bool UtilityReturnsTuples(Node *parsetree);
extern TupleDesc UtilityTupleDescriptor(Node *parsetree);
extern Query *UtilityContainsQuery(Node *parsetree);
extern CommandTag CreateCommandTag(Node *parsetree);
static inline const char *
CreateCommandName(Node *parsetree)
{
return GetCommandTagName(CreateCommandTag(parsetree));
}
extern LogStmtLevel GetCommandLogLevel(Node *parsetree);
extern bool CommandIsReadOnly(PlannedStmt *pstmt);
#endif /* UTILITY_H */