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Switch various builtin functions to use pg_lsn instead of text.

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The functions in slotfuncs.c don't exist in any released version,
but the changes to xlogfuncs.c represent backward-incompatibilities.
Per discussion, we're hoping that the queries using these functions
are few enough and simple enough that this won't cause too much
breakage for users.

Michael Paquier, reviewed by Andres Freund and further modified
by me.
pull/6/head
Robert Haas 12 years ago
parent 694e3d139a
commit 6f289c2b7d
7 changed files with 45 additions and 172 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 2
      doc/src/sgml/catalogs.sgml
  2. 24
      doc/src/sgml/func.sgml
  3. 153
      src/backend/access/transam/xlogfuncs.c
  4. 2
      src/backend/catalog/system_views.sql
  5. 8
      src/backend/replication/slotfuncs.c
  6. 2
      src/include/catalog/catversion.h
  7. 26
      src/include/catalog/pg_proc.h

2
doc/src/sgml/catalogs.sgml
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@ -5244,7 +5244,7 @@
<row>
<entry><structfield>restart_lsn</structfield></entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry></entry>
<entry>The address (<literal>LSN</literal>) of oldest WAL which still
might be required by the consumer of this slot and thus won't be

24
doc/src/sgml/func.sgml
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@ -15884,35 +15884,35 @@ SELECT set_config('log_statement_stats', 'off', false);
<entry>
<literal><function>pg_create_restore_point(<parameter>name</> <type>text</>)</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Create a named point for performing restore (restricted to superusers)</entry>
</row>
<row>
<entry>
<literal><function>pg_current_xlog_insert_location()</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Get current transaction log insert location</entry>
</row>
<row>
<entry>
<literal><function>pg_current_xlog_location()</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Get current transaction log write location</entry>
</row>
<row>
<entry>
<literal><function>pg_start_backup(<parameter>label</> <type>text</> <optional>, <parameter>fast</> <type>boolean</> </optional>)</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Prepare for performing on-line backup (restricted to superusers or replication roles)</entry>
</row>
<row>
<entry>
<literal><function>pg_stop_backup()</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Finish performing on-line backup (restricted to superusers or replication roles)</entry>
</row>
<row>
@ -15933,26 +15933,26 @@ SELECT set_config('log_statement_stats', 'off', false);
<entry>
<literal><function>pg_switch_xlog()</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Force switch to a new transaction log file (restricted to superusers)</entry>
</row>
<row>
<entry>
<literal><function>pg_xlogfile_name(<parameter>location</> <type>text</>)</function></literal>
<literal><function>pg_xlogfile_name(<parameter>location</> <type>pg_lsn</>)</function></literal>
</entry>
<entry><type>text</type></entry>
<entry>Convert transaction log location string to file name</entry>
</row>
<row>
<entry>
<literal><function>pg_xlogfile_name_offset(<parameter>location</> <type>text</>)</function></literal>
<literal><function>pg_xlogfile_name_offset(<parameter>location</> <type>pg_lsn</>)</function></literal>
</entry>
<entry><type>text</>, <type>integer</></entry>
<entry>Convert transaction log location string to file name and decimal byte offset within file</entry>
</row>
<row>
<entry>
<literal><function>pg_xlog_location_diff(<parameter>location</> <type>text</>, <parameter>location</> <type>text</>)</function></literal>
<literal><function>pg_xlog_location_diff(<parameter>location</> <type>pg_lsn</>, <parameter>location</> <type>pg_lsn</>)</function></literal>
</entry>
<entry><type>numeric</></entry>
<entry>Calculate the difference between two transaction log locations</entry>
@ -16107,7 +16107,7 @@ postgres=# SELECT * FROM pg_xlogfile_name_offset(pg_stop_backup());
<entry>
<literal><function>pg_last_xlog_receive_location()</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Get last transaction log location received and synced to disk by
streaming replication. While streaming replication is in progress
this will increase monotonically. If recovery has completed this will
@ -16121,7 +16121,7 @@ postgres=# SELECT * FROM pg_xlogfile_name_offset(pg_stop_backup());
<entry>
<literal><function>pg_last_xlog_replay_location()</function></literal>
</entry>
<entry><type>text</type></entry>
<entry><type>pg_lsn</type></entry>
<entry>Get last transaction log location replayed during recovery.
If recovery is still in progress this will increase monotonically.
If recovery has completed then this value will remain static at
@ -16335,7 +16335,7 @@ postgres=# SELECT * FROM pg_xlogfile_name_offset(pg_stop_backup());
<literal><function>pg_create_physical_replication_slot(<parameter>slotname</parameter> <type>text</type>, <parameter>plugin</parameter> <type>text</type>)</function></literal>
</entry>
<entry>
(<parameter>slotname</parameter> <type>text</type>, <parameter>xlog_position</parameter> <type>text</type>)
(<parameter>slotname</parameter> <type>text</type>, <parameter>xlog_position</parameter> <type>pg_lsn</type>)
</entry>
<entry>
Creates a new physical replication slot named

153
src/backend/access/transam/xlogfuncs.c
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@ -30,11 +30,10 @@
#include "utils/builtins.h"
#include "utils/numeric.h"
#include "utils/guc.h"
#include "utils/pg_lsn.h"
#include "utils/timestamp.h"
#include "storage/fd.h"
static void validate_xlog_location(char *str);
/*
* pg_start_backup: set up for taking an on-line backup dump
@ -52,7 +51,6 @@ pg_start_backup(PG_FUNCTION_ARGS)
bool fast = PG_GETARG_BOOL(1);
char *backupidstr;
XLogRecPtr startpoint;
char startxlogstr[MAXFNAMELEN];
backupidstr = text_to_cstring(backupid);
@ -63,9 +61,7 @@ pg_start_backup(PG_FUNCTION_ARGS)
startpoint = do_pg_start_backup(backupidstr, fast, NULL, NULL);
snprintf(startxlogstr, sizeof(startxlogstr), "%X/%X",
(uint32) (startpoint >> 32), (uint32) startpoint);
PG_RETURN_TEXT_P(cstring_to_text(startxlogstr));
PG_RETURN_LSN(startpoint);
}
/*
@ -85,7 +81,6 @@ Datum
pg_stop_backup(PG_FUNCTION_ARGS)
{
XLogRecPtr stoppoint;
char stopxlogstr[MAXFNAMELEN];
if (!superuser() && !has_rolreplication(GetUserId()))
ereport(ERROR,
@ -94,9 +89,7 @@ pg_stop_backup(PG_FUNCTION_ARGS)
stoppoint = do_pg_stop_backup(NULL, true, NULL);
snprintf(stopxlogstr, sizeof(stopxlogstr), "%X/%X",
(uint32) (stoppoint >> 32), (uint32) stoppoint);
PG_RETURN_TEXT_P(cstring_to_text(stopxlogstr));
PG_RETURN_LSN(stoppoint);
}
/*
@ -106,7 +99,6 @@ Datum
pg_switch_xlog(PG_FUNCTION_ARGS)
{
XLogRecPtr switchpoint;
char location[MAXFNAMELEN];
if (!superuser())
ereport(ERROR,
@ -124,9 +116,7 @@ pg_switch_xlog(PG_FUNCTION_ARGS)
/*
* As a convenience, return the WAL location of the switch record
*/
snprintf(location, sizeof(location), "%X/%X",
(uint32) (switchpoint >> 32), (uint32) switchpoint);
PG_RETURN_TEXT_P(cstring_to_text(location));
PG_RETURN_LSN(switchpoint);
}
/*
@ -138,7 +128,6 @@ pg_create_restore_point(PG_FUNCTION_ARGS)
text *restore_name = PG_GETARG_TEXT_P(0);
char *restore_name_str;
XLogRecPtr restorepoint;
char location[MAXFNAMELEN];
if (!superuser())
ereport(ERROR,
@ -169,9 +158,7 @@ pg_create_restore_point(PG_FUNCTION_ARGS)
/*
* As a convenience, return the WAL location of the restore point record
*/
snprintf(location, sizeof(location), "%X/%X",
(uint32) (restorepoint >> 32), (uint32) restorepoint);
PG_RETURN_TEXT_P(cstring_to_text(location));
PG_RETURN_LSN(restorepoint);
}
/*
@ -185,7 +172,6 @@ Datum
pg_current_xlog_location(PG_FUNCTION_ARGS)
{
XLogRecPtr current_recptr;
char location[MAXFNAMELEN];
if (RecoveryInProgress())
ereport(ERROR,
@ -195,9 +181,7 @@ pg_current_xlog_location(PG_FUNCTION_ARGS)
current_recptr = GetXLogWriteRecPtr();
snprintf(location, sizeof(location), "%X/%X",
(uint32) (current_recptr >> 32), (uint32) current_recptr);
PG_RETURN_TEXT_P(cstring_to_text(location));
PG_RETURN_LSN(current_recptr);
}
/*
@ -209,7 +193,6 @@ Datum
pg_current_xlog_insert_location(PG_FUNCTION_ARGS)
{
XLogRecPtr current_recptr;
char location[MAXFNAMELEN];
if (RecoveryInProgress())
ereport(ERROR,
@ -219,9 +202,7 @@ pg_current_xlog_insert_location(PG_FUNCTION_ARGS)
current_recptr = GetXLogInsertRecPtr();
snprintf(location, sizeof(location), "%X/%X",
(uint32) (current_recptr >> 32), (uint32) current_recptr);
PG_RETURN_TEXT_P(cstring_to_text(location));
PG_RETURN_LSN(current_recptr);
}
/*
@ -234,16 +215,13 @@ Datum
pg_last_xlog_receive_location(PG_FUNCTION_ARGS)
{
XLogRecPtr recptr;
char location[MAXFNAMELEN];
recptr = GetWalRcvWriteRecPtr(NULL, NULL);
if (recptr == 0)
PG_RETURN_NULL();
snprintf(location, sizeof(location), "%X/%X",
(uint32) (recptr >> 32), (uint32) recptr);
PG_RETURN_TEXT_P(cstring_to_text(location));
PG_RETURN_LSN(recptr);
}
/*
@ -256,16 +234,13 @@ Datum
pg_last_xlog_replay_location(PG_FUNCTION_ARGS)
{
XLogRecPtr recptr;
char location[MAXFNAMELEN];
recptr = GetXLogReplayRecPtr(NULL);
if (recptr == 0)
PG_RETURN_NULL();
snprintf(location, sizeof(location), "%X/%X",
(uint32) (recptr >> 32), (uint32) recptr);
PG_RETURN_TEXT_P(cstring_to_text(location));
PG_RETURN_LSN(recptr);
}
/*
@ -279,13 +254,9 @@ pg_last_xlog_replay_location(PG_FUNCTION_ARGS)
Datum
pg_xlogfile_name_offset(PG_FUNCTION_ARGS)
{
text *location = PG_GETARG_TEXT_P(0);
char *locationstr;
uint32 hi,
lo;
XLogSegNo xlogsegno;
uint32 xrecoff;
XLogRecPtr locationpoint;
XLogRecPtr locationpoint = PG_GETARG_LSN(0);
char xlogfilename[MAXFNAMELEN];
Datum values[2];
bool isnull[2];
@ -299,20 +270,6 @@ pg_xlogfile_name_offset(PG_FUNCTION_ARGS)
errmsg("recovery is in progress"),
errhint("pg_xlogfile_name_offset() cannot be executed during recovery.")));
/*
* Read input and parse
*/
locationstr = text_to_cstring(location);
validate_xlog_location(locationstr);
if (sscanf(locationstr, "%X/%X", &hi, &lo) != 2)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("could not parse transaction log location \"%s\"",
locationstr)));
locationpoint = ((uint64) hi) << 32 | lo;
/*
* Construct a tuple descriptor for the result row. This must match this
* function's pg_proc entry!
@ -359,12 +316,8 @@ pg_xlogfile_name_offset(PG_FUNCTION_ARGS)
Datum
pg_xlogfile_name(PG_FUNCTION_ARGS)
{
text *location = PG_GETARG_TEXT_P(0);
char *locationstr;
uint32 hi,
lo;
XLogSegNo xlogsegno;
XLogRecPtr locationpoint;
XLogRecPtr locationpoint = PG_GETARG_LSN(0);
char xlogfilename[MAXFNAMELEN];
if (RecoveryInProgress())
@ -373,17 +326,6 @@ pg_xlogfile_name(PG_FUNCTION_ARGS)
errmsg("recovery is in progress"),
errhint("pg_xlogfile_name() cannot be executed during recovery.")));
locationstr = text_to_cstring(location);
validate_xlog_location(locationstr);
if (sscanf(locationstr, "%X/%X", &hi, &lo) != 2)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("could not parse transaction log location \"%s\"",
locationstr)));
locationpoint = ((uint64) hi) << 32 | lo;
XLByteToPrevSeg(locationpoint, xlogsegno);
XLogFileName(xlogfilename, ThisTimeLineID, xlogsegno);
@ -481,82 +423,17 @@ pg_is_in_recovery(PG_FUNCTION_ARGS)
PG_RETURN_BOOL(RecoveryInProgress());
}
/*
* Validate the text form of a transaction log location.
* (Just using sscanf() input allows incorrect values such as
* negatives, so we have to be a bit more careful about that).
*/
static void
validate_xlog_location(char *str)
{
#define MAXLSNCOMPONENT 8
int len1,
len2;
len1 = strspn(str, "0123456789abcdefABCDEF");
if (len1 < 1 || len1 > MAXLSNCOMPONENT || str[len1] != '/')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input syntax for transaction log location: \"%s\"", str)));
len2 = strspn(str + len1 + 1, "0123456789abcdefABCDEF");
if (len2 < 1 || len2 > MAXLSNCOMPONENT || str[len1 + 1 + len2] != '\0')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input syntax for transaction log location: \"%s\"", str)));
}
/*
* Compute the difference in bytes between two WAL locations.
*/
Datum
pg_xlog_location_diff(PG_FUNCTION_ARGS)
{
text *location1 = PG_GETARG_TEXT_P(0);
text *location2 = PG_GETARG_TEXT_P(1);
char *str1,
*str2;
XLogRecPtr loc1,
loc2;
Numeric result;
uint64 bytes1,
bytes2;
uint32 hi,
lo;
/*
* Read and parse input
*/
str1 = text_to_cstring(location1);
str2 = text_to_cstring(location2);
validate_xlog_location(str1);
validate_xlog_location(str2);
Datum result;
if (sscanf(str1, "%X/%X", &hi, &lo) != 2)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("could not parse transaction log location \"%s\"", str1)));
loc1 = ((uint64) hi) << 32 | lo;
if (sscanf(str2, "%X/%X", &hi, &lo) != 2)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("could not parse transaction log location \"%s\"", str2)));
loc2 = ((uint64) hi) << 32 | lo;
bytes1 = (uint64) loc1;
bytes2 = (uint64) loc2;
/*
* result = bytes1 - bytes2.
*
* XXX: this won't handle values higher than 2^63 correctly.
*/
result = DatumGetNumeric(DirectFunctionCall2(numeric_sub,
DirectFunctionCall1(int8_numeric, Int64GetDatum((int64) bytes1)),
DirectFunctionCall1(int8_numeric, Int64GetDatum((int64) bytes2))));
result = DirectFunctionCall2(pg_lsn_mi,
PG_GETARG_DATUM(0),
PG_GETARG_DATUM(1));
PG_RETURN_NUMERIC(result);
}

2
src/backend/catalog/system_views.sql
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@ -810,7 +810,7 @@ COMMENT ON FUNCTION ts_debug(text) IS
CREATE OR REPLACE FUNCTION
pg_start_backup(label text, fast boolean DEFAULT false)
RETURNS text STRICT VOLATILE LANGUAGE internal AS 'pg_start_backup';
RETURNS pg_lsn STRICT VOLATILE LANGUAGE internal AS 'pg_start_backup';
CREATE OR REPLACE FUNCTION
json_populate_record(base anyelement, from_json json, use_json_as_text boolean DEFAULT false)

8
src/backend/replication/slotfuncs.c
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@ -17,6 +17,7 @@
#include "miscadmin.h"
#include "access/htup_details.h"
#include "utils/builtins.h"
#include "utils/pg_lsn.h"
#include "replication/slot.h"
Datum pg_create_physical_replication_slot(PG_FUNCTION_ARGS);
@ -141,8 +142,6 @@ pg_get_replication_slots(PG_FUNCTION_ARGS)
bool active;
Oid database;
const char *slot_name;
char restart_lsn_s[MAXFNAMELEN];
int i;
SpinLockAcquire(&slot->mutex);
@ -164,9 +163,6 @@ pg_get_replication_slots(PG_FUNCTION_ARGS)
memset(nulls, 0, sizeof(nulls));
snprintf(restart_lsn_s, sizeof(restart_lsn_s), "%X/%X",
(uint32) (restart_lsn >> 32), (uint32) restart_lsn);
i = 0;
values[i++] = CStringGetTextDatum(slot_name);
if (database == InvalidOid)
@ -180,7 +176,7 @@ pg_get_replication_slots(PG_FUNCTION_ARGS)
else
nulls[i++] = true;
if (restart_lsn != InvalidTransactionId)
values[i++] = CStringGetTextDatum(restart_lsn_s);
values[i++] = LSNGetDatum(restart_lsn);
else
nulls[i++] = true;

2
src/include/catalog/catversion.h
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@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201402191
#define CATALOG_VERSION_NO 201402192
#endif

26
src/include/catalog/pg_proc.h
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@ -2971,28 +2971,28 @@ DATA(insert OID = 2171 ( pg_cancel_backend PGNSP PGUID 12 1 0 0 0 f f f f t f v
DESCR("cancel a server process' current query");
DATA(insert OID = 2096 ( pg_terminate_backend PGNSP PGUID 12 1 0 0 0 f f f f t f v 1 0 16 "23" _null_ _null_ _null_ _null_ pg_terminate_backend _null_ _null_ _null_ ));
DESCR("terminate a server process");
DATA(insert OID = 2172 ( pg_start_backup PGNSP PGUID 12 1 0 0 0 f f f f t f v 2 0 25 "25 16" _null_ _null_ _null_ _null_ pg_start_backup _null_ _null_ _null_ ));
DATA(insert OID = 2172 ( pg_start_backup PGNSP PGUID 12 1 0 0 0 f f f f t f v 2 0 3220 "25 16" _null_ _null_ _null_ _null_ pg_start_backup _null_ _null_ _null_ ));
DESCR("prepare for taking an online backup");
DATA(insert OID = 2173 ( pg_stop_backup PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_stop_backup _null_ _null_ _null_ ));
DATA(insert OID = 2173 ( pg_stop_backup PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 3220 "" _null_ _null_ _null_ _null_ pg_stop_backup _null_ _null_ _null_ ));
DESCR("finish taking an online backup");
DATA(insert OID = 3813 ( pg_is_in_backup PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 16 "" _null_ _null_ _null_ _null_ pg_is_in_backup _null_ _null_ _null_ ));
DESCR("true if server is in online backup");
DATA(insert OID = 3814 ( pg_backup_start_time PGNSP PGUID 12 1 0 0 0 f f f f t f s 0 0 1184 "" _null_ _null_ _null_ _null_ pg_backup_start_time _null_ _null_ _null_ ));
DESCR("start time of an online backup");
DATA(insert OID = 2848 ( pg_switch_xlog PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_switch_xlog _null_ _null_ _null_ ));
DATA(insert OID = 2848 ( pg_switch_xlog PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 3220 "" _null_ _null_ _null_ _null_ pg_switch_xlog _null_ _null_ _null_ ));
DESCR("switch to new xlog file");
DATA(insert OID = 3098 ( pg_create_restore_point PGNSP PGUID 12 1 0 0 0 f f f f t f v 1 0 25 "25" _null_ _null_ _null_ _null_ pg_create_restore_point _null_ _null_ _null_ ));
DATA(insert OID = 3098 ( pg_create_restore_point PGNSP PGUID 12 1 0 0 0 f f f f t f v 1 0 3220 "25" _null_ _null_ _null_ _null_ pg_create_restore_point _null_ _null_ _null_ ));
DESCR("create a named restore point");
DATA(insert OID = 2849 ( pg_current_xlog_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_current_xlog_location _null_ _null_ _null_ ));
DATA(insert OID = 2849 ( pg_current_xlog_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 3220 "" _null_ _null_ _null_ _null_ pg_current_xlog_location _null_ _null_ _null_ ));
DESCR("current xlog write location");
DATA(insert OID = 2852 ( pg_current_xlog_insert_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_current_xlog_insert_location _null_ _null_ _null_ ));
DATA(insert OID = 2852 ( pg_current_xlog_insert_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 3220 "" _null_ _null_ _null_ _null_ pg_current_xlog_insert_location _null_ _null_ _null_ ));
DESCR("current xlog insert location");
DATA(insert OID = 2850 ( pg_xlogfile_name_offset PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 2249 "25" "{25,25,23}" "{i,o,o}" "{wal_location,file_name,file_offset}" _null_ pg_xlogfile_name_offset _null_ _null_ _null_ ));
DATA(insert OID = 2850 ( pg_xlogfile_name_offset PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 2249 "3220" "{3220,25,23}" "{i,o,o}" "{wal_location,file_name,file_offset}" _null_ pg_xlogfile_name_offset _null_ _null_ _null_ ));
DESCR("xlog filename and byte offset, given an xlog location");
DATA(insert OID = 2851 ( pg_xlogfile_name PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 25 "25" _null_ _null_ _null_ _null_ pg_xlogfile_name _null_ _null_ _null_ ));
DATA(insert OID = 2851 ( pg_xlogfile_name PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 25 "3220" _null_ _null_ _null_ _null_ pg_xlogfile_name _null_ _null_ _null_ ));
DESCR("xlog filename, given an xlog location");
DATA(insert OID = 3165 ( pg_xlog_location_diff PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 1700 "25 25" _null_ _null_ _null_ _null_ pg_xlog_location_diff _null_ _null_ _null_ ));
DATA(insert OID = 3165 ( pg_xlog_location_diff PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 1700 "3220 3220" _null_ _null_ _null_ _null_ pg_xlog_location_diff _null_ _null_ _null_ ));
DESCR("difference in bytes, given two xlog locations");
DATA(insert OID = 3809 ( pg_export_snapshot PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_export_snapshot _null_ _null_ _null_ ));
@ -3001,9 +3001,9 @@ DESCR("export a snapshot");
DATA(insert OID = 3810 ( pg_is_in_recovery PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 16 "" _null_ _null_ _null_ _null_ pg_is_in_recovery _null_ _null_ _null_ ));
DESCR("true if server is in recovery");
DATA(insert OID = 3820 ( pg_last_xlog_receive_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_last_xlog_receive_location _null_ _null_ _null_ ));
DATA(insert OID = 3820 ( pg_last_xlog_receive_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 3220 "" _null_ _null_ _null_ _null_ pg_last_xlog_receive_location _null_ _null_ _null_ ));
DESCR("current xlog flush location");
DATA(insert OID = 3821 ( pg_last_xlog_replay_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 25 "" _null_ _null_ _null_ _null_ pg_last_xlog_replay_location _null_ _null_ _null_ ));
DATA(insert OID = 3821 ( pg_last_xlog_replay_location PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 3220 "" _null_ _null_ _null_ _null_ pg_last_xlog_replay_location _null_ _null_ _null_ ));
DESCR("last xlog replay location");
DATA(insert OID = 3830 ( pg_last_xact_replay_timestamp PGNSP PGUID 12 1 0 0 0 f f f f t f v 0 0 1184 "" _null_ _null_ _null_ _null_ pg_last_xact_replay_timestamp _null_ _null_ _null_ ));
DESCR("timestamp of last replay xact");
@ -4800,11 +4800,11 @@ DATA(insert OID = 3473 ( spg_range_quad_leaf_consistent PGNSP PGUID 12 1 0 0 0
DESCR("SP-GiST support for quad tree over range");
/* replication slots */
DATA(insert OID = 3779 ( pg_create_physical_replication_slot PGNSP PGUID 12 1 0 0 0 f f f f f f v 1 0 2249 "19" "{19,25,25}" "{i,o,o}" "{slotname,slotname,xlog_position}" _null_ pg_create_physical_replication_slot _null_ _null_ _null_ ));
DATA(insert OID = 3779 ( pg_create_physical_replication_slot PGNSP PGUID 12 1 0 0 0 f f f f f f v 1 0 2249 "19" "{19,25,3220}" "{i,o,o}" "{slotname,slotname,xlog_position}" _null_ pg_create_physical_replication_slot _null_ _null_ _null_ ));
DESCR("create a physical replication slot");
DATA(insert OID = 3780 ( pg_drop_replication_slot PGNSP PGUID 12 1 0 0 0 f f f f f f v 1 0 2278 "19" _null_ _null_ _null_ _null_ pg_drop_replication_slot _null_ _null_ _null_ ));
DESCR("drop a replication slot");
DATA(insert OID = 3781 ( pg_get_replication_slots PGNSP PGUID 12 1 10 0 0 f f f f f t s 0 0 2249 "" "{25,25,26,16,28,25}" "{o,o,o,o,o,o}" "{slot_name,slot_type,datoid,active,xmin,restart_lsn}" _null_ pg_get_replication_slots _null_ _null_ _null_ ));
DATA(insert OID = 3781 ( pg_get_replication_slots PGNSP PGUID 12 1 10 0 0 f f f f f t s 0 0 2249 "" "{25,25,26,16,28,3220}" "{o,o,o,o,o,o}" "{slot_name,slot_type,datoid,active,xmin,restart_lsn}" _null_ pg_get_replication_slots _null_ _null_ _null_ ));
DESCR("information about replication slots currently in use");
/* event triggers */

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