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In pg_upgrade, remove functions that did sequential array scans looking

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up relations, but rather order old/new relations and use the same array
index value for both.  This should speed up pg_upgrade for databases
with many relations.
This commit is contained in:
Bruce Momjian
2011-01-08 13:44:44 -05:00
parent ebaf648ad2
commit 002c105a07
5 changed files with 37 additions and 109 deletions
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8
contrib/pg_upgrade/pg_upgrade.h
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@ -77,7 +77,6 @@ typedef struct
{
RelInfo *rels;
int nrels;
int last_relname_lookup; /* cache of last lookup location */
} RelInfoArr;
/*
@ -321,8 +320,8 @@ void check_hard_link(void);
/* function.c */
void install_support_functions_in_db(const char *db_name);
void uninstall_support_functions(void);
void install_support_functions_in_new_db(const char *db_name);
void uninstall_support_functions_from_new_cluster(void);
void get_loadable_libraries(void);
void check_loadable_libraries(void);
@ -331,8 +330,7 @@ void check_loadable_libraries(void);
FileNameMap *gen_db_file_maps(DbInfo *old_db,
DbInfo *new_db, int *nmaps, const char *old_pgdata,
const char *new_pgdata);
void get_db_and_rel_infos(ClusterInfo *cluster);
DbInfo *dbarr_lookup_db(DbInfoArr *db_arr, const char *db_name);
void get_db_and_rel_infos(ClusterInfo *cluster);
void dbarr_free(DbInfoArr *db_arr);
void print_maps(FileNameMap *maps, int n,
const char *dbName);