77 const char *prefix,
Size message_size,
const char *message);
94 const char *prefix,
Size message_size,
const char *message);
121 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
122 errmsg(
"logical decoding requires wal_level >= logical")));
126 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
127 errmsg(
"logical decoding requires a database connection")));
141 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
142 errmsg(
"logical decoding on standby requires wal_level >= logical on the primary")));
154 bool need_full_snapshot,
170 "Logical decoding context",
209 (
errcode(ERRCODE_OUT_OF_MEMORY),
211 errdetail(
"Failed while allocating a WAL reading processor.")));
294 ctx->
write = do_write;
331 List *output_plugin_options,
332 bool need_full_snapshot,
356 elog(
ERROR,
"cannot perform logical decoding without an acquired slot");
359 elog(
ERROR,
"cannot initialize logical decoding without a specified plugin");
364 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
365 errmsg(
"cannot use physical replication slot for logical decoding")));
369 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
370 errmsg(
"replication slot \"%s\" was not created in this database",
376 (
errcode(ERRCODE_ACTIVE_SQL_TRANSACTION),
377 errmsg(
"cannot create logical replication slot in transaction that has performed writes")));
430 if (need_full_snapshot)
442 need_full_snapshot,
false,
443 xl_routine, prepare_write, do_write,
497 List *output_plugin_options,
513 elog(
ERROR,
"cannot perform logical decoding without an acquired slot");
518 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
519 errmsg(
"cannot use physical replication slot for logical decoding")));
523 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
524 errmsg(
"replication slot \"%s\" was not created in this database",
535 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
536 errmsg(
"can no longer get changes from replication slot \"%s\"",
538 errdetail(
"This slot has been invalidated because it exceeded the maximum reserved size.")));
542 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
543 errmsg(
"can no longer get changes from replication slot \"%s\"",
545 errdetail(
"This slot has been invalidated because it was conflicting with recovery.")));
555 else if (start_lsn < slot->
data.confirmed_flush)
569 elog(
LOG,
"%X/%X has been already streamed, forwarding to %X/%X",
578 fast_forward, xl_routine, prepare_write,
579 do_write, update_progress);
610 (
errmsg(
"starting logical decoding for slot \"%s\"",
612 errdetail(
"Streaming transactions committing after %X/%X, reading WAL from %X/%X.",
639 elog(
DEBUG1,
"searching for logical decoding starting point, starting at %X/%X",
651 elog(
ERROR,
"could not find logical decoding starting point: %s",
err);
653 elog(
ERROR,
"could not find logical decoding starting point");
694 elog(
ERROR,
"writes are only accepted in commit, begin and change callbacks");
707 elog(
ERROR,
"OutputPluginPrepareWrite needs to be called before OutputPluginWrite");
739 if (plugin_init == NULL)
740 elog(
ERROR,
"output plugins have to declare the _PG_output_plugin_init symbol");
743 plugin_init(callbacks);
746 elog(
ERROR,
"output plugins have to register a begin callback");
748 elog(
ERROR,
"output plugins have to register a change callback");
750 elog(
ERROR,
"output plugins have to register a commit callback");
760 errcontext(
"slot \"%s\", output plugin \"%s\", in the %s callback, associated LSN %X/%X",
763 state->callback_name,
766 errcontext(
"slot \"%s\", output plugin \"%s\", in the %s callback",
769 state->callback_name);
782 state.callback_name =
"startup";
810 state.callback_name =
"shutdown";
844 state.callback_name =
"begin";
876 state.callback_name =
"commit";
917 state.callback_name =
"begin_prepare";
936 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
937 errmsg(
"logical replication at prepare time requires a %s callback",
938 "begin_prepare_cb")));
962 state.callback_name =
"prepare";
981 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
982 errmsg(
"logical replication at prepare time requires a %s callback",
1007 state.callback_name =
"commit_prepared";
1026 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1027 errmsg(
"logical replication at prepare time requires a %s callback",
1028 "commit_prepared_cb")));
1053 state.callback_name =
"rollback_prepared";
1072 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1073 errmsg(
"logical replication at prepare time requires a %s callback",
1074 "rollback_prepared_cb")));
1096 state.callback_name =
"change";
1097 state.report_location = change->
lsn;
1138 state.callback_name =
"truncate";
1139 state.report_location = change->
lsn;
1177 state.callback_name =
"filter_prepare";
1208 state.callback_name =
"filter_by_origin";
1231 const char *prefix,
Size message_size,
const char *message)
1244 state.callback_name =
"message";
1245 state.report_location = message_lsn;
1259 message_size, message);
1280 state.callback_name =
"stream_start";
1281 state.report_location = first_lsn;
1304 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1305 errmsg(
"logical streaming requires a %s callback",
1306 "stream_start_cb")));
1329 state.callback_name =
"stream_stop";
1330 state.report_location = last_lsn;
1353 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1354 errmsg(
"logical streaming requires a %s callback",
1355 "stream_stop_cb")));
1378 state.callback_name =
"stream_abort";
1379 state.report_location = abort_lsn;
1394 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1395 errmsg(
"logical streaming requires a %s callback",
1396 "stream_abort_cb")));
1423 state.callback_name =
"stream_prepare";
1439 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1440 errmsg(
"logical streaming at prepare time requires a %s callback",
1441 "stream_prepare_cb")));
1464 state.callback_name =
"stream_commit";
1480 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1481 errmsg(
"logical streaming requires a %s callback",
1482 "stream_commit_cb")));
1505 state.callback_name =
"stream_change";
1506 state.report_location = change->
lsn;
1529 (
errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1530 errmsg(
"logical streaming requires a %s callback",
1531 "stream_change_cb")));
1542 const char *prefix,
Size message_size,
const char *message)
1559 state.callback_name =
"stream_message";
1560 state.report_location = message_lsn;
1574 message_size, message);
1582 int nrelations,
Relation relations[],
1600 state.callback_name =
"stream_truncate";
1601 state.report_location = change->
lsn;
1639 state.callback_name =
"update_progress_txn";
1640 state.report_location = lsn;
1677 bool updated_xmin =
false;
1679 bool got_new_xmin =
false;
1700 else if (current_lsn <= slot->
data.confirmed_flush)
1706 updated_xmin =
true;
1722 got_new_xmin =
true;
1727 elog(
DEBUG1,
"got new catalog xmin %u at %X/%X", xmin,
1745 bool updated_lsn =
false;
1757 if (restart_lsn <= slot->
data.restart_lsn)
1765 else if (current_lsn <= slot->
data.confirmed_flush)
1785 elog(
DEBUG1,
"got new restart lsn %X/%X at %X/%X",
1800 elog(
DEBUG1,
"failed to increase restart lsn: proposed %X/%X, after %X/%X, current candidate %X/%X, current after %X/%X, flushed up to %X/%X",
1825 bool updated_xmin =
false;
1826 bool updated_restart =
false;
1851 updated_xmin =
true;
1863 updated_restart =
true;
1869 if (updated_xmin || updated_restart)
1873 elog(
DEBUG1,
"updated xmin: %u restart: %u", updated_xmin, updated_restart);
1923 elog(
DEBUG2,
"UpdateDecodingStats: updating stats %p %lld %lld %lld %lld %lld %lld %lld %lld",
1963 bool has_pending_wal =
false;
2002 elog(
ERROR,
"could not find record for logical decoding: %s", errm);
2025 return has_pending_wal;
elog(ERROR, "%s: %s", p2, msg)
void LogicalDecodingProcessRecord(LogicalDecodingContext *ctx, XLogReaderState *record)
void * load_external_function(const char *filename, const char *funcname, bool signalNotFound, void **filehandle)
int errdetail(const char *fmt,...)
ErrorContextCallback * error_context_stack
int errcode(int sqlerrcode)
int errmsg(const char *fmt,...)
#define ereport(elevel,...)
void err(int eval, const char *fmt,...)
void InvalidateSystemCaches(void)
Assert(fmt[strlen(fmt) - 1] !='\n')
static void change_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, Relation relation, ReorderBufferChange *change)
static void commit_prepared_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr commit_lsn)
static void update_progress_txn_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr lsn)
void LogicalConfirmReceivedLocation(XLogRecPtr lsn)
void FreeDecodingContext(LogicalDecodingContext *ctx)
bool LogicalReplicationSlotHasPendingWal(XLogRecPtr end_of_wal)
static void stream_start_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr first_lsn)
static void commit_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr commit_lsn)
static void output_plugin_error_callback(void *arg)
static void begin_prepare_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn)
static void stream_prepare_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr prepare_lsn)
static void prepare_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr prepare_lsn)
static LogicalDecodingContext * StartupDecodingContext(List *output_plugin_options, XLogRecPtr start_lsn, TransactionId xmin_horizon, bool need_full_snapshot, bool fast_forward, XLogReaderRoutine *xl_routine, LogicalOutputPluginWriterPrepareWrite prepare_write, LogicalOutputPluginWriterWrite do_write, LogicalOutputPluginWriterUpdateProgress update_progress)
void OutputPluginWrite(struct LogicalDecodingContext *ctx, bool last_write)
static void stream_truncate_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, int nrelations, Relation relations[], ReorderBufferChange *change)
static void truncate_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, int nrelations, Relation relations[], ReorderBufferChange *change)
void DecodingContextFindStartpoint(LogicalDecodingContext *ctx)
static void begin_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn)
static void rollback_prepared_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr prepare_end_lsn, TimestampTz prepare_time)
bool DecodingContextReady(LogicalDecodingContext *ctx)
void OutputPluginUpdateProgress(struct LogicalDecodingContext *ctx, bool skipped_xact)
static void startup_cb_wrapper(LogicalDecodingContext *ctx, OutputPluginOptions *opt, bool is_init)
void UpdateDecodingStats(LogicalDecodingContext *ctx)
void LogicalIncreaseRestartDecodingForSlot(XLogRecPtr current_lsn, XLogRecPtr restart_lsn)
static void stream_change_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, Relation relation, ReorderBufferChange *change)
static void stream_abort_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr abort_lsn)
void ResetLogicalStreamingState(void)
void LogicalIncreaseXminForSlot(XLogRecPtr current_lsn, TransactionId xmin)
struct LogicalErrorCallbackState LogicalErrorCallbackState
static void stream_message_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr message_lsn, bool transactional, const char *prefix, Size message_size, const char *message)
static void stream_commit_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr commit_lsn)
bool filter_prepare_cb_wrapper(LogicalDecodingContext *ctx, TransactionId xid, const char *gid)
static void shutdown_cb_wrapper(LogicalDecodingContext *ctx)
void OutputPluginPrepareWrite(struct LogicalDecodingContext *ctx, bool last_write)
void CheckLogicalDecodingRequirements(void)
LogicalDecodingContext * CreateInitDecodingContext(const char *plugin, List *output_plugin_options, bool need_full_snapshot, XLogRecPtr restart_lsn, XLogReaderRoutine *xl_routine, LogicalOutputPluginWriterPrepareWrite prepare_write, LogicalOutputPluginWriterWrite do_write, LogicalOutputPluginWriterUpdateProgress update_progress)
bool filter_by_origin_cb_wrapper(LogicalDecodingContext *ctx, RepOriginId origin_id)
static void LoadOutputPlugin(OutputPluginCallbacks *callbacks, const char *plugin)
static void stream_stop_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr last_lsn)
static void message_cb_wrapper(ReorderBuffer *cache, ReorderBufferTXN *txn, XLogRecPtr message_lsn, bool transactional, const char *prefix, Size message_size, const char *message)
LogicalDecodingContext * CreateDecodingContext(XLogRecPtr start_lsn, List *output_plugin_options, bool fast_forward, XLogReaderRoutine *xl_routine, LogicalOutputPluginWriterPrepareWrite prepare_write, LogicalOutputPluginWriterWrite do_write, LogicalOutputPluginWriterUpdateProgress update_progress)
void(* LogicalOutputPluginWriterUpdateProgress)(struct LogicalDecodingContext *lr, XLogRecPtr Ptr, TransactionId xid, bool skipped_xact)
void(* LogicalOutputPluginWriterWrite)(struct LogicalDecodingContext *lr, XLogRecPtr Ptr, TransactionId xid, bool last_write)
LogicalOutputPluginWriterWrite LogicalOutputPluginWriterPrepareWrite
bool LWLockAcquire(LWLock *lock, LWLockMode mode)
void LWLockRelease(LWLock *lock)
void * palloc0(Size size)
MemoryContext CurrentMemoryContext
void MemoryContextDelete(MemoryContext context)
#define AllocSetContextCreate
#define ALLOCSET_DEFAULT_SIZES
#define CHECK_FOR_INTERRUPTS()
void namestrcpy(Name name, const char *str)
void(* LogicalOutputPluginInit)(struct OutputPluginCallbacks *cb)
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
static const char * plugin
void pgstat_report_replslot(ReplicationSlot *slot, const PgStat_StatReplSlotEntry *repSlotStat)
#define PROC_IN_LOGICAL_DECODING
TransactionId GetOldestSafeDecodingTransactionId(bool catalogOnly)
ReorderBuffer * ReorderBufferAllocate(void)
void ReorderBufferFree(ReorderBuffer *rb)
void ReplicationSlotMarkDirty(void)
void ReplicationSlotReserveWal(void)
void ReplicationSlotsComputeRequiredXmin(bool already_locked)
ReplicationSlot * MyReplicationSlot
void ReplicationSlotSave(void)
void ReplicationSlotsComputeRequiredLSN(void)
void CheckSlotRequirements(void)
#define SlotIsPhysical(slot)
void SnapBuildSetTwoPhaseAt(SnapBuild *builder, XLogRecPtr ptr)
SnapBuildState SnapBuildCurrentState(SnapBuild *builder)
void FreeSnapshotBuilder(SnapBuild *builder)
SnapBuild * AllocateSnapshotBuilder(ReorderBuffer *reorder, TransactionId xmin_horizon, XLogRecPtr start_lsn, bool need_full_snapshot, XLogRecPtr two_phase_at)
#define SpinLockRelease(lock)
#define SpinLockAcquire(lock)
StringInfo makeStringInfo(void)
struct ErrorContextCallback * previous
void(* callback)(void *arg)
OutputPluginOptions options
struct SnapBuild * snapshot_builder
XLogRecPtr write_location
LogicalOutputPluginWriterPrepareWrite prepare_write
OutputPluginCallbacks callbacks
List * output_plugin_options
LogicalOutputPluginWriterWrite write
struct ReorderBuffer * reorder
LogicalOutputPluginWriterUpdateProgress update_progress
XLogRecPtr report_location
LogicalDecodingContext * ctx
const char * callback_name
LogicalDecodeStreamChangeCB stream_change_cb
LogicalDecodeMessageCB message_cb
LogicalDecodeStreamTruncateCB stream_truncate_cb
LogicalDecodeStreamMessageCB stream_message_cb
LogicalDecodeFilterPrepareCB filter_prepare_cb
LogicalDecodeFilterByOriginCB filter_by_origin_cb
LogicalDecodeTruncateCB truncate_cb
LogicalDecodeStreamStopCB stream_stop_cb
LogicalDecodeStreamCommitCB stream_commit_cb
LogicalDecodeRollbackPreparedCB rollback_prepared_cb
LogicalDecodeStreamPrepareCB stream_prepare_cb
LogicalDecodeCommitPreparedCB commit_prepared_cb
LogicalDecodeStreamStartCB stream_start_cb
LogicalDecodePrepareCB prepare_cb
LogicalDecodeStartupCB startup_cb
LogicalDecodeCommitCB commit_cb
LogicalDecodeBeginCB begin_cb
LogicalDecodeStreamAbortCB stream_abort_cb
LogicalDecodeBeginPrepareCB begin_prepare_cb
LogicalDecodeChangeCB change_cb
LogicalDecodeShutdownCB shutdown_cb
PgStat_Counter stream_count
PgStat_Counter total_txns
PgStat_Counter total_bytes
PgStat_Counter spill_txns
PgStat_Counter stream_txns
PgStat_Counter spill_count
PgStat_Counter stream_bytes
PgStat_Counter spill_bytes
ReorderBufferStreamMessageCB stream_message
ReorderBufferStreamChangeCB stream_change
ReorderBufferBeginCB begin_prepare
ReorderBufferStreamTruncateCB stream_truncate
ReorderBufferCommitPreparedCB commit_prepared
ReorderBufferUpdateProgressTxnCB update_progress_txn
ReorderBufferMessageCB message
ReorderBufferRollbackPreparedCB rollback_prepared
ReorderBufferPrepareCB prepare
ReorderBufferStreamStopCB stream_stop
ReorderBufferApplyChangeCB apply_change
ReorderBufferStreamPrepareCB stream_prepare
ReorderBufferStreamAbortCB stream_abort
ReorderBufferCommitCB commit
ReorderBufferStreamStartCB stream_start
ReorderBufferStreamCommitCB stream_commit
ReorderBufferApplyTruncateCB apply_truncate
ReorderBufferBeginCB begin
TransactionId catalog_xmin
XLogRecPtr confirmed_flush
ReplicationSlotInvalidationCause invalidated
XLogRecPtr candidate_xmin_lsn
TransactionId effective_catalog_xmin
XLogRecPtr candidate_restart_valid
TransactionId effective_xmin
XLogRecPtr candidate_restart_lsn
TransactionId candidate_catalog_xmin
ReplicationSlotPersistentData data
bool TransactionIdPrecedesOrEquals(TransactionId id1, TransactionId id2)
#define InvalidTransactionId
#define TransactionIdIsValid(xid)
bool IsTransactionOrTransactionBlock(void)
TransactionId CheckXidAlive
bool IsTransactionState(void)
TransactionId GetTopTransactionIdIfAny(void)
bool RecoveryInProgress(void)
WalLevel GetActiveWalLevelOnStandby(void)
#define LSN_FORMAT_ARGS(lsn)
#define XLogRecPtrIsInvalid(r)
#define InvalidXLogRecPtr
XLogRecord * XLogReadRecord(XLogReaderState *state, char **errormsg)
void XLogReaderFree(XLogReaderState *state)
XLogReaderState * XLogReaderAllocate(int wal_segment_size, const char *waldir, XLogReaderRoutine *routine, void *private_data)
void XLogBeginRead(XLogReaderState *state, XLogRecPtr RecPtr)
void wal_segment_close(XLogReaderState *state)
void wal_segment_open(XLogReaderState *state, XLogSegNo nextSegNo, TimeLineID *tli_p)
int read_local_xlog_page(XLogReaderState *state, XLogRecPtr targetPagePtr, int reqLen, XLogRecPtr targetRecPtr, char *cur_page)