| Server IP : 85.214.239.14 / Your IP : 3.135.213.83 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /usr/include/postgresql/9.6/server/nodes/ |
Upload File : |
/*-------------------------------------------------------------------------
*
* lockoptions.h
* Common header for some locking-related declarations.
*
*
* Copyright (c) 2014-2016, PostgreSQL Global Development Group
*
* src/include/nodes/lockoptions.h
*
*-------------------------------------------------------------------------
*/
#ifndef LOCKOPTIONS_H
#define LOCKOPTIONS_H
/*
* This enum represents the different strengths of FOR UPDATE/SHARE clauses.
* The ordering here is important, because the highest numerical value takes
* precedence when a RTE is specified multiple ways. See applyLockingClause.
*/
typedef enum LockClauseStrength
{
LCS_NONE, /* no such clause - only used in PlanRowMark */
LCS_FORKEYSHARE, /* FOR KEY SHARE */
LCS_FORSHARE, /* FOR SHARE */
LCS_FORNOKEYUPDATE, /* FOR NO KEY UPDATE */
LCS_FORUPDATE /* FOR UPDATE */
} LockClauseStrength;
/*
* This enum controls how to deal with rows being locked by FOR UPDATE/SHARE
* clauses (i.e., it represents the NOWAIT and SKIP LOCKED options).
* The ordering here is important, because the highest numerical value takes
* precedence when a RTE is specified multiple ways. See applyLockingClause.
*/
typedef enum LockWaitPolicy
{
/* Wait for the lock to become available (default behavior) */
LockWaitBlock,
/* Skip rows that can't be locked (SKIP LOCKED) */
LockWaitSkip,
/* Raise an error if a row cannot be locked (NOWAIT) */
LockWaitError
} LockWaitPolicy;
#endif /* LOCKOPTIONS_H */