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A materialized view has a rule just like a view and a heap and other physical properties like a table. The rule is only used to populate the table, references in queries refer to the materialized data. This is a minimal implementation, but should still be useful in many cases. Currently data is only populated "on demand" by the CREATE MATERIALIZED VIEW and REFRESH MATERIALIZED VIEW statements. It is expected that future releases will add incremental updates with various timings, and that a more refined concept of defining what is "fresh" data will be developed. At some point it may even be possible to have queries use a materialized in place of references to underlying tables, but that requires the other above-mentioned features to be working first. Much of the documentation work by Robert Haas. Review by Noah Misch, Thom Brown, Robert Haas, Marko Tiikkaja Security review by KaiGai Kohei, with a decision on how best to implement sepgsql still pending.
263 lines
5.4 KiB
Plaintext
263 lines
5.4 KiB
Plaintext
<!-- doc/src/sgml/reference.sgml -->
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<part id="reference">
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<title>Reference</title>
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<partintro>
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<para>
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The entries in this Reference are meant to provide in reasonable
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length an authoritative, complete, and formal summary about their
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respective subjects. More information about the use of
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<productname>PostgreSQL</productname>, in narrative, tutorial, or
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example form, can be found in other parts of this book. See the
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cross-references listed on each reference page.
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</para>
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<para>
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The reference entries are also available as traditional
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<quote>man</quote> pages.
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</para>
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</partintro>
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<reference id="sql-commands">
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<title>SQL Commands</title>
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<partintro>
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<para>
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This part contains reference information for the
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<acronym>SQL</acronym> commands supported by
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<productname>PostgreSQL</productname>. By <quote>SQL</quote> the
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language in general is meant; information about the standards
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conformance and compatibility of each command can be found on the
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respective reference page.
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</para>
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</partintro>
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&abort;
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&alterAggregate;
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&alterCollation;
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&alterConversion;
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&alterDatabase;
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&alterDefaultPrivileges;
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&alterDomain;
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&alterExtension;
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&alterEventTrigger;
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&alterForeignDataWrapper;
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&alterForeignTable;
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&alterFunction;
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&alterGroup;
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&alterIndex;
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&alterLanguage;
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&alterLargeObject;
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&alterMaterializedView;
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&alterOperator;
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&alterOperatorClass;
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&alterOperatorFamily;
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&alterRole;
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&alterRule;
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&alterSchema;
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&alterSequence;
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&alterServer;
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&alterTable;
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&alterTableSpace;
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&alterTSConfig;
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&alterTSDictionary;
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&alterTSParser;
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&alterTSTemplate;
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&alterTrigger;
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&alterType;
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&alterUser;
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&alterUserMapping;
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&alterView;
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&analyze;
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&begin;
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&checkpoint;
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&close;
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&cluster;
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&commentOn;
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&commit;
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&commitPrepared;
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©Table;
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&createAggregate;
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&createCast;
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&createCollation;
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&createConversion;
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&createDatabase;
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&createDomain;
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&createExtension;
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&createEventTrigger;
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&createForeignDataWrapper;
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&createForeignTable;
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&createFunction;
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&createGroup;
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&createIndex;
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&createLanguage;
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&createMaterializedView;
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&createOperator;
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&createOperatorClass;
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&createOperatorFamily;
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&createRole;
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&createRule;
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&createSchema;
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&createSequence;
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&createServer;
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&createTable;
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&createTableAs;
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&createTableSpace;
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&createTSConfig;
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&createTSDictionary;
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&createTSParser;
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&createTSTemplate;
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&createTrigger;
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&createType;
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&createUser;
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&createUserMapping;
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&createView;
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&deallocate;
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&declare;
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&delete;
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&discard;
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&do;
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&dropAggregate;
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&dropCast;
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&dropCollation;
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&dropConversion;
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&dropDatabase;
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&dropDomain;
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&dropExtension;
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&dropEventTrigger;
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&dropForeignDataWrapper;
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&dropForeignTable;
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&dropFunction;
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&dropGroup;
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&dropIndex;
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&dropLanguage;
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&dropMaterializedView;
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&dropOperator;
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&dropOperatorClass;
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&dropOperatorFamily;
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&dropOwned;
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&dropRole;
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&dropRule;
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&dropSchema;
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&dropSequence;
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&dropServer;
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&dropTable;
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&dropTableSpace;
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&dropTSConfig;
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&dropTSDictionary;
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&dropTSParser;
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&dropTSTemplate;
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&dropTrigger;
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&dropType;
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&dropUser;
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&dropUserMapping;
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&dropView;
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&end;
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&execute;
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&explain;
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&fetch;
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&grant;
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&insert;
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&listen;
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&load;
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&lock;
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&move;
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¬ify;
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&prepare;
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&prepareTransaction;
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&reassignOwned;
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&refreshMaterializedView;
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&reindex;
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&releaseSavepoint;
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&reset;
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&revoke;
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&rollback;
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&rollbackPrepared;
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&rollbackTo;
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&savepoint;
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&securityLabel;
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&select;
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&selectInto;
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&set;
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&setConstraints;
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&setRole;
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&setSessionAuth;
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&setTransaction;
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&show;
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&startTransaction;
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&truncate;
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&unlisten;
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&update;
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&vacuum;
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&values;
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</reference>
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<reference id="reference-client">
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<title>PostgreSQL Client Applications</title>
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<partintro>
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<para>
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This part contains reference information for
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<productname>PostgreSQL</productname> client applications and
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utilities. Not all of these commands are of general utility; some
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might require special privileges. The common feature of these
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applications is that they can be run on any host, independent of
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where the database server resides.
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</para>
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<para>
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When specified on the command line, user and database names have
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their case preserved — the presence of spaces or special
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characters might require quoting. Table names and other identifiers
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do not have their case preserved, except where documented, and
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might require quoting.
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</para>
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</partintro>
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&clusterdb;
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&createdb;
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&createlang;
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&createuser;
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&dropdb;
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&droplang;
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&dropuser;
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&ecpgRef;
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&pgBasebackup;
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&pgConfig;
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&pgDump;
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&pgDumpall;
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&pgIsready;
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&pgReceivexlog;
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&pgRestore;
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&psqlRef;
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&reindexdb;
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&vacuumdb;
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</reference>
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<reference id="reference-server">
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<title>PostgreSQL Server Applications</title>
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<partintro>
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<para>
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This part contains reference information for
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<productname>PostgreSQL</productname> server applications and
|
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support utilities. These commands can only be run usefully on the
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host where the database server resides. Other utility programs
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are listed in <xref linkend="reference-client">.
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</para>
|
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</partintro>
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&initdb;
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&pgControldata;
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&pgCtl;
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&pgResetxlog;
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&postgres;
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&postmaster;
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</reference>
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</part>
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