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postgresql/src/include/access/rmgrlist.h

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Split out list of XLog resource managers The new rmgrlist.h header, containing all necessary data about built-in resource managers, allows other pieces of code to access them. In particular, this allows a future pg_xlogdump program to extract rm_desc function pointers, without having to keep a duplicate list of them.
2013-02-05 21:21:29 +01:00
/*---------------------------------------------------------------------------
* rmgrlist.h
*
* The resource manager list is kept in its own source file for possible
pgindent run for 9.4 This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
2014-05-06 18:12:18 +02:00
* use by automatic tools. The exact representation of a rmgr is determined
Split out list of XLog resource managers The new rmgrlist.h header, containing all necessary data about built-in resource managers, allows other pieces of code to access them. In particular, this allows a future pg_xlogdump program to extract rm_desc function pointers, without having to keep a duplicate list of them.
2013-02-05 21:21:29 +01:00
* by the PG_RMGR macro, which is not defined in this file; it can be
* defined by the caller for special purposes.
*
Update copyright for 2014 Update all files in head, and files COPYRIGHT and legal.sgml in all back branches.
2014-01-07 22:05:30 +01:00
* Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
Split out list of XLog resource managers The new rmgrlist.h header, containing all necessary data about built-in resource managers, allows other pieces of code to access them. In particular, this allows a future pg_xlogdump program to extract rm_desc function pointers, without having to keep a duplicate list of them.
2013-02-05 21:21:29 +01:00
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/access/rmgrlist.h
*---------------------------------------------------------------------------
*/
/* there is deliberately not an #ifndef RMGRLIST_H here */
/*
* List of resource manager entries. Note that order of entries defines the
* numerical values of each rmgr's ID, which is stored in WAL records. New
* entries should be added at the end, to avoid changing IDs of existing
* entries.
*
* Changes to this list possibly need a XLOG_PAGE_MAGIC bump.
*/
Remove rm_safe_restartpoint machinery. It is no longer used, none of the resource managers have multi-record actions that would make it unsafe to perform a restartpoint. Also don't allow rm_cleanup to write WAL records, it's also no longer required. Move the call to rm_cleanup routines to make it more symmetric with rm_startup.
2014-03-18 21:06:59 +01:00
/* symbol name, textual name, redo, desc, startup, cleanup */
Add rmgr callback to name xlog record types for display purposes. This is primarily useful for the upcoming pg_xlogdump --stats feature, but also allows to remove some duplicated code in the rmgr_desc routines. Due to the separation and harmonization, the output of dipsplayed records changes somewhat. But since this isn't enduser oriented content that's ok. It's potentially desirable to further change pg_xlogdump's display of records. It previously wasn't possible to show the record type separately from the description forcing it to be in the last column. But that's better done in a separate commit. Author: Abhijit Menon-Sen, slightly editorialized by me Reviewed-By: Álvaro Herrera, Andres Freund, and Heikki Linnakangas Discussion: 20140604104716.GA3989@toroid.org
2014-09-19 15:17:12 +02:00
PG_RMGR(RM_XLOG_ID, "XLOG", xlog_redo, xlog_desc, xlog_identify, NULL, NULL)
PG_RMGR(RM_XACT_ID, "Transaction", xact_redo, xact_desc, xact_identify, NULL, NULL)
PG_RMGR(RM_SMGR_ID, "Storage", smgr_redo, smgr_desc, smgr_identify, NULL, NULL)
PG_RMGR(RM_CLOG_ID, "CLOG", clog_redo, clog_desc, clog_identify, NULL, NULL)
PG_RMGR(RM_DBASE_ID, "Database", dbase_redo, dbase_desc, dbase_identify, NULL, NULL)
PG_RMGR(RM_TBLSPC_ID, "Tablespace", tblspc_redo, tblspc_desc, tblspc_identify, NULL, NULL)
PG_RMGR(RM_MULTIXACT_ID, "MultiXact", multixact_redo, multixact_desc, multixact_identify, NULL, NULL)
PG_RMGR(RM_RELMAP_ID, "RelMap", relmap_redo, relmap_desc, relmap_identify, NULL, NULL)
PG_RMGR(RM_STANDBY_ID, "Standby", standby_redo, standby_desc, standby_identify, NULL, NULL)
PG_RMGR(RM_HEAP2_ID, "Heap2", heap2_redo, heap2_desc, heap2_identify, NULL, NULL)
PG_RMGR(RM_HEAP_ID, "Heap", heap_redo, heap_desc, heap_identify, NULL, NULL)
PG_RMGR(RM_BTREE_ID, "Btree", btree_redo, btree_desc, btree_identify, NULL, NULL)
PG_RMGR(RM_HASH_ID, "Hash", hash_redo, hash_desc, hash_identify, NULL, NULL)
PG_RMGR(RM_GIN_ID, "Gin", gin_redo, gin_desc, gin_identify, gin_xlog_startup, gin_xlog_cleanup)
PG_RMGR(RM_GIST_ID, "Gist", gist_redo, gist_desc, gist_identify, gist_xlog_startup, gist_xlog_cleanup)
PG_RMGR(RM_SEQ_ID, "Sequence", seq_redo, seq_desc, seq_identify, NULL, NULL)
PG_RMGR(RM_SPGIST_ID, "SPGist", spg_redo, spg_desc, spg_identify, spg_xlog_startup, spg_xlog_cleanup)
BRIN: Block Range Indexes BRIN is a new index access method intended to accelerate scans of very large tables, without the maintenance overhead of btrees or other traditional indexes. They work by maintaining "summary" data about block ranges. Bitmap index scans work by reading each summary tuple and comparing them with the query quals; all pages in the range are returned in a lossy TID bitmap if the quals are consistent with the values in the summary tuple, otherwise not. Normal index scans are not supported because these indexes do not store TIDs. As new tuples are added into the index, the summary information is updated (if the block range in which the tuple is added is already summarized) or not; in the latter case, a subsequent pass of VACUUM or the brin_summarize_new_values() function will create the summary information. For data types with natural 1-D sort orders, the summary info consists of the maximum and the minimum values of each indexed column within each page range. This type of operator class we call "Minmax", and we supply a bunch of them for most data types with B-tree opclasses. Since the BRIN code is generalized, other approaches are possible for things such as arrays, geometric types, ranges, etc; even for things such as enum types we could do something different than minmax with better results. In this commit I only include minmax. Catalog version bumped due to new builtin catalog entries. There's more that could be done here, but this is a good step forwards. Loosely based on ideas from Simon Riggs; code mostly by Álvaro Herrera, with contribution by Heikki Linnakangas. Patch reviewed by: Amit Kapila, Heikki Linnakangas, Robert Haas. Testing help from Jeff Janes, Erik Rijkers, Emanuel Calvo. PS: The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 318633.
2014-11-07 20:38:14 +01:00
PG_RMGR(RM_BRIN_ID, "BRIN", brin_redo, brin_desc, brin_identify, NULL, NULL)