database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-06 18:42:54 +03:00
Code Activity

Switch various builtin functions to use pg_lsn instead of text.

Browse Source 
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.
This commit is contained in:
Robert Haas
2014-02-19 11:13:44 -05:00
parent 694e3d139a
commit 6f289c2b7d
7 changed files with 45 additions and 172 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
doc/src/sgml/catalogs.sgml
View File

@@ -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
View File

@@ -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