mirror of
https://github.com/postgres/postgres.git
synced 2025-06-16 06:01:02 +03:00
Add system indexes to match all caches.
Make all system indexes unique. Make all cache loads use system indexes. Rename *rel to *relid in inheritance tables. Rename cache names to be clearer.
This commit is contained in:
Bruce Momjian
341
src/backend/utils/cache/syscache.c
vendored
341
src/backend/utils/cache/syscache.c
vendored
@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.40 1999/11/18 13:56:29 wieck Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.41 1999/11/22 17:56:32 momjian Exp $
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*
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* NOTES
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* These routines allow the parser/planner/executor to perform
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@ -45,12 +45,63 @@ extern bool AMI_OVERRIDE; /* XXX style */
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typedef HeapTuple (*ScanFunc) ();
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/* ----------------
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* Warning: cacheinfo[] below is changed, then be sure and
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* update the magic constants in syscache.h!
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* ----------------
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*/
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/*---------------------------------------------------------------------------
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Adding system caches:
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Add your new cache to the list in include/utils/syscache.h. Keep
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the list sorted alphabetically and adjust the cache numbers
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accordingly.
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Add your entry to the cacheinfo[] array below. All cache lists are
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alphabetical, so add it in the proper place. Specify the relation
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name, number of arguments, argument names, size of tuple, index lookup
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function, and index name.
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In include/catalog/indexing.h, add a define for the number of indexes
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in the relation, add a define for the index name, add an extern
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array to hold the index names, define the index lookup function
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prototype, and use DECLARE_UNIQUE_INDEX to define the index. Cache
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lookups return only one row, so the index should be unique.
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In backend/catalog/indexing.c, initialize the relation array with
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the index names for the relation, and create the index lookup function.
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Pick one that takes similar arguments and use that one, but keep the
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function names in the same order as the cache list for clarity.
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Finally, any place your relation gets heap_insert() or
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heap_replace calls, include code to do a CatalogIndexInsert() to update
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the system indexes. The heap_* calls do not update indexes.
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bjm 1999/11/22
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---------------------------------------------------------------------------
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*/
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static struct cachedesc cacheinfo[] = {
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{AggregateRelationName, /* AGGNAME */
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2,
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{
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Anum_pg_aggregate_aggname,
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Anum_pg_aggregate_aggbasetype,
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0,
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0
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},
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offsetof(FormData_pg_aggregate, agginitval1),
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AggregateNameTypeIndex,
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AggregateNameTypeIndexScan},
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{AccessMethodRelationName, /* AMNAME */
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1,
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{
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Anum_pg_am_amname,
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0,
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0,
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0
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},
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sizeof(FormData_pg_am),
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AmNameIndex,
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AmNameIndexScan},
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{AccessMethodOperatorRelationName, /* AMOPOPID */
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3,
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{
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@ -61,7 +112,7 @@ static struct cachedesc cacheinfo[] = {
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},
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sizeof(FormData_pg_amop),
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AccessMethodOpidIndex,
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(ScanFunc) AccessMethodOpidIndexScan},
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AccessMethodOpidIndexScan},
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{AccessMethodOperatorRelationName, /* AMOPSTRATEGY */
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3,
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{
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@ -82,8 +133,8 @@ static struct cachedesc cacheinfo[] = {
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0
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},
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ATTRIBUTE_TUPLE_SIZE,
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AttributeNameIndex,
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(ScanFunc) AttributeNameIndexScan},
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AttributeRelidNameIndex,
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AttributeRelidNameIndexScan},
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{AttributeRelationName, /* ATTNUM */
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2,
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{
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@ -93,8 +144,52 @@ static struct cachedesc cacheinfo[] = {
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0
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},
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ATTRIBUTE_TUPLE_SIZE,
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AttributeNumIndex,
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(ScanFunc) AttributeNumIndexScan},
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AttributeRelidNumIndex,
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(ScanFunc) AttributeRelidNumIndexScan},
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{OperatorClassRelationName, /* CLADEFTYPE */
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1,
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{
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Anum_pg_opclass_opcdeftype,
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0,
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0,
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0
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},
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sizeof(FormData_pg_opclass),
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OpclassDeftypeIndex,
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OpclassDeftypeIndexScan},
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{OperatorClassRelationName, /* CLANAME */
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1,
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{
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Anum_pg_opclass_opcname,
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0,
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0,
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0
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},
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sizeof(FormData_pg_opclass),
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OpclassNameIndex,
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OpclassNameIndexScan},
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{GroupRelationName, /* GRONAME */
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1,
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{
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Anum_pg_group_groname,
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0,
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0,
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0
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},
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offsetof(FormData_pg_group, grolist[0]),
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GroupNameIndex,
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GroupNameIndexScan},
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{GroupRelationName, /* GROSYSID */
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1,
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{
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Anum_pg_group_grosysid,
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0,
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0,
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0
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},
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offsetof(FormData_pg_group, grolist[0]),
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GroupSysidIndex,
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GroupSysidIndexScan},
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{IndexRelationName, /* INDEXRELID */
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1,
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{
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@ -105,8 +200,19 @@ static struct cachedesc cacheinfo[] = {
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},
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offsetof(FormData_pg_index, indpred),
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IndexRelidIndex,
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(ScanFunc) IndexRelidIndexScan},
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{LanguageRelationName, /* LANNAME */
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IndexRelidIndexScan},
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{InheritsRelationName, /* INHRELID */
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2,
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{
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Anum_pg_inherits_inhrelid,
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Anum_pg_inherits_inhseqno,
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0,
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0
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},
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sizeof(FormData_pg_inherits),
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InheritsRelidSeqnoIndex,
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InheritsRelidSeqnoIndexScan},
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{LanguageRelationName, /* LANGNAME */
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1,
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{
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Anum_pg_language_lanname,
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@ -115,9 +221,31 @@ static struct cachedesc cacheinfo[] = {
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0
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},
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offsetof(FormData_pg_language, lancompiler),
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NULL,
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NULL},
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{OperatorRelationName, /* OPRNAME */
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LanguageNameIndex,
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LanguageNameIndexScan},
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{LanguageRelationName, /* LANGOID */
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1,
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{
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ObjectIdAttributeNumber,
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0,
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0,
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0
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},
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offsetof(FormData_pg_language, lancompiler),
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LanguageOidIndex,
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LanguageOidIndexScan},
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{ListenerRelationName, /* LISTENREL */
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2,
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{
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Anum_pg_listener_relname,
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Anum_pg_listener_pid,
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0,
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0
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},
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sizeof(FormData_pg_listener),
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ListenerRelnamePidIndex,
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ListenerRelnamePidIndexScan},
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{OperatorRelationName, /* OPERNAME */
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4,
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{
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Anum_pg_operator_oprname,
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@ -126,9 +254,9 @@ static struct cachedesc cacheinfo[] = {
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Anum_pg_operator_oprkind
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},
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sizeof(FormData_pg_operator),
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NULL,
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NULL},
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{OperatorRelationName, /* OPROID */
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OperatorNameIndex,
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(ScanFunc) OperatorNameIndexScan},
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{OperatorRelationName, /* OPEROID */
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1,
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{
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ObjectIdAttributeNumber,
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@ -137,9 +265,9 @@ static struct cachedesc cacheinfo[] = {
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0
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},
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sizeof(FormData_pg_operator),
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NULL,
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(ScanFunc) NULL},
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{ProcedureRelationName, /* PRONAME */
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OperatorOidIndex,
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OperatorOidIndexScan},
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{ProcedureRelationName, /* PROCNAME */
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3,
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{
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Anum_pg_proc_proname,
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@ -150,7 +278,7 @@ static struct cachedesc cacheinfo[] = {
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offsetof(FormData_pg_proc, prosrc),
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ProcedureNameIndex,
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(ScanFunc) ProcedureNameIndexScan},
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{ProcedureRelationName, /* PROOID */
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{ProcedureRelationName, /* PROCOID */
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1,
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{
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ObjectIdAttributeNumber,
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@ -160,7 +288,7 @@ static struct cachedesc cacheinfo[] = {
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},
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offsetof(FormData_pg_proc, prosrc),
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ProcedureOidIndex,
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(ScanFunc) ProcedureOidIndexScan},
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ProcedureOidIndexScan},
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{RelationRelationName, /* RELNAME */
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1,
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{
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@ -171,7 +299,7 @@ static struct cachedesc cacheinfo[] = {
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},
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CLASS_TUPLE_SIZE,
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ClassNameIndex,
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(ScanFunc) ClassNameIndexScan},
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ClassNameIndexScan},
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{RelationRelationName, /* RELOID */
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1,
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{
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@ -182,8 +310,30 @@ static struct cachedesc cacheinfo[] = {
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},
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CLASS_TUPLE_SIZE,
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ClassOidIndex,
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(ScanFunc) ClassOidIndexScan},
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{TypeRelationName, /* TYPNAME */
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ClassOidIndexScan},
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{RewriteRelationName, /* REWRITENAME */
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1,
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{
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Anum_pg_rewrite_rulename,
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0,
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0,
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0
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},
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offsetof(FormData_pg_rewrite, ev_qual),
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RewriteRulenameIndex,
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RewriteRulenameIndexScan},
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{RewriteRelationName, /* RULEOID */
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1,
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{
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ObjectIdAttributeNumber,
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0,
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0,
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0
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},
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offsetof(FormData_pg_rewrite, ev_qual),
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RewriteOidIndex,
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RewriteOidIndexScan},
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{TypeRelationName, /* TYPENAME */
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1,
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{
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Anum_pg_type_typname,
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@ -194,7 +344,7 @@ static struct cachedesc cacheinfo[] = {
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offsetof(FormData_pg_type, typalign) +sizeof(char),
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TypeNameIndex,
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TypeNameIndexScan},
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{TypeRelationName, /* TYPOID */
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{TypeRelationName, /* TYPEOID */
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1,
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{
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ObjectIdAttributeNumber,
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@ -205,73 +355,7 @@ static struct cachedesc cacheinfo[] = {
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offsetof(FormData_pg_type, typalign) +sizeof(char),
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TypeOidIndex,
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TypeOidIndexScan},
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{AccessMethodRelationName, /* AMNAME */
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1,
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{
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Anum_pg_am_amname,
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0,
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0,
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0
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},
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sizeof(FormData_pg_am),
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NULL,
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NULL},
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{OperatorClassRelationName, /* CLANAME */
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1,
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{
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Anum_pg_opclass_opcname,
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0,
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0,
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0
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},
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sizeof(FormData_pg_opclass),
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NULL,
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NULL},
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{InheritsRelationName, /* INHRELID */
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2,
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{
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Anum_pg_inherits_inhrel,
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Anum_pg_inherits_inhseqno,
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0,
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0
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},
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sizeof(FormData_pg_inherits),
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NULL,
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(ScanFunc) NULL},
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{RewriteRelationName, /* RULOID */
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1,
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{
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ObjectIdAttributeNumber,
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0,
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0,
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0
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},
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offsetof(FormData_pg_rewrite, ev_qual),
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NULL,
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(ScanFunc) NULL},
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{AggregateRelationName, /* AGGNAME */
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2,
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{
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Anum_pg_aggregate_aggname,
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Anum_pg_aggregate_aggbasetype,
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0,
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0
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},
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offsetof(FormData_pg_aggregate, agginitval1),
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NULL,
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(ScanFunc) NULL},
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{ListenerRelationName, /* LISTENREL */
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2,
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{
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Anum_pg_listener_relname,
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Anum_pg_listener_pid,
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0,
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0
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},
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sizeof(FormData_pg_listener),
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NULL,
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(ScanFunc) NULL},
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{ShadowRelationName, /* USENAME */
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{ShadowRelationName, /* USERNAME */
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1,
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{
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Anum_pg_shadow_usename,
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@ -280,9 +364,10 @@ static struct cachedesc cacheinfo[] = {
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0
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},
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sizeof(FormData_pg_shadow),
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NULL,
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(ScanFunc) NULL},
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{ShadowRelationName, /* USESYSID */
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NULL,NULL
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/* ShadowNameIndex,
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ShadowNameIndexScan*/},
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{ShadowRelationName, /* USERSYSID */
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1,
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{
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Anum_pg_shadow_usesysid,
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@ -291,63 +376,9 @@ static struct cachedesc cacheinfo[] = {
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0
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},
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sizeof(FormData_pg_shadow),
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NULL,
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(ScanFunc) NULL},
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{GroupRelationName, /* GRONAME */
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1,
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{
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Anum_pg_group_groname,
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0,
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0,
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0
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},
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offsetof(FormData_pg_group, grolist[0]),
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NULL,
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(ScanFunc) NULL},
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{GroupRelationName, /* GROSYSID */
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1,
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{
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Anum_pg_group_grosysid,
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0,
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0,
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0
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},
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offsetof(FormData_pg_group, grolist[0]),
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NULL,
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(ScanFunc) NULL},
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{RewriteRelationName, /* REWRITENAME */
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1,
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{
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Anum_pg_rewrite_rulename,
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0,
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0,
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0
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},
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offsetof(FormData_pg_rewrite, ev_qual),
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NULL,
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(ScanFunc) NULL},
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{OperatorClassRelationName, /* CLADEFTYPE */
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1,
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{
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Anum_pg_opclass_opcdeftype,
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0,
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0,
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0
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},
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sizeof(FormData_pg_opclass),
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NULL,
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(ScanFunc) NULL},
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{LanguageRelationName, /* LANOID */
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1,
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{
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ObjectIdAttributeNumber,
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0,
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0,
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0
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},
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offsetof(FormData_pg_language, lancompiler),
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NULL,
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NULL}
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NULL,NULL
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/* ShadowSysidIndex,
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ShadowSysidIndexScan*/}
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};
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static struct catcache *SysCache[lengthof(cacheinfo)];
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Reference in New Issue
Block a user