diff options
Diffstat (limited to 'src/backend/utils/cache/temprel.c')
| -rw-r--r-- | src/backend/utils/cache/temprel.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/src/backend/utils/cache/temprel.c b/src/backend/utils/cache/temprel.c index b4ca06bbce6..88dc606cb0e 100644 --- a/src/backend/utils/cache/temprel.c +++ b/src/backend/utils/cache/temprel.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/cache/Attic/temprel.c,v 1.34 2001/01/24 19:43:15 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/cache/Attic/temprel.c,v 1.35 2001/03/22 03:59:58 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -19,7 +19,7 @@ * * When a temp table is created, normal entries are made for it in pg_class, * pg_type, etc using a unique "physical" relation name. We also make an - * entry in the temp table list maintained by this module. Subsequently, + * entry in the temp table list maintained by this module. Subsequently, * relname lookups are filtered through the temp table list, and attempts * to look up a temp table name are changed to look up the physical name. * This allows temp table names to mask a regular table of the same name @@ -50,12 +50,13 @@ typedef struct TempTable NameData relname; /* underlying unique name */ Oid relid; /* needed properties of rel */ char relkind; + /* - * If this entry was created during this xact, it should be deleted - * at xact abort. Conversely, if this entry was deleted during this - * xact, it should be removed at xact commit. We leave deleted entries - * in the list until commit so that we can roll back if needed --- - * but we ignore them for purposes of lookup! + * If this entry was created during this xact, it should be deleted at + * xact abort. Conversely, if this entry was deleted during this + * xact, it should be removed at xact commit. We leave deleted + * entries in the list until commit so that we can roll back if needed + * --- but we ignore them for purposes of lookup! */ bool created_in_cur_xact; bool deleted_in_cur_xact; @@ -110,7 +111,11 @@ remove_temp_rel_by_relid(Oid relid) if (temp_rel->relid == relid) temp_rel->deleted_in_cur_xact = true; - /* Keep scanning 'cause there could be multiple matches; see RENAME */ + + /* + * Keep scanning 'cause there could be multiple matches; see + * RENAME + */ } } @@ -161,10 +166,10 @@ rename_temp_relation(const char *oldname, * xact. One of these entries will be deleted at xact end. * * NOTE: the new mapping entry is inserted into the list just after - * the old one. We could alternatively insert it before the old one, - * but that'd take more code. It does need to be in one spot or the - * other, to ensure that deletion of temp rels happens in the right - * order during remove_all_temp_relations(). + * the old one. We could alternatively insert it before the old + * one, but that'd take more code. It does need to be in one spot + * or the other, to ensure that deletion of temp rels happens in + * the right order during remove_all_temp_relations(). */ oldcxt = MemoryContextSwitchTo(CacheMemoryContext); @@ -208,11 +213,11 @@ remove_all_temp_relations(void) StartTransactionCommand(); /* - * Scan the list and delete all entries not already deleted. - * We need not worry about list entries getting deleted from under us, - * because remove_temp_rel_by_relid() doesn't remove entries, only - * mark them dead. Note that entries will be deleted in reverse order - * of creation --- that's critical for cases involving inheritance. + * Scan the list and delete all entries not already deleted. We need + * not worry about list entries getting deleted from under us, because + * remove_temp_rel_by_relid() doesn't remove entries, only mark them + * dead. Note that entries will be deleted in reverse order of + * creation --- that's critical for cases involving inheritance. */ foreach(l, temp_rels) { |