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Remove spclocation field from pg_tablespace

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Instead, add a function pg_tablespace_location(oid) used to return
the same information, and do this by reading the symbolic link.

Doing it this way makes it possible to relocate a tablespace when the
database is down by simply changing the symbolic link.
This commit is contained in:
Magnus Hagander
2011-12-07 10:35:00 +01:00
parent c6e3ac11b6
commit 16d8e594ac
13 changed files with 114 additions and 40 deletions
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src/include/utils/builtins.h
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@ -469,6 +469,7 @@ extern Datum pg_cancel_backend(PG_FUNCTION_ARGS);
extern Datum pg_terminate_backend(PG_FUNCTION_ARGS);
extern Datum pg_reload_conf(PG_FUNCTION_ARGS);
extern Datum pg_tablespace_databases(PG_FUNCTION_ARGS);
extern Datum pg_tablespace_location(PG_FUNCTION_ARGS);
extern Datum pg_rotate_logfile(PG_FUNCTION_ARGS);
extern Datum pg_sleep(PG_FUNCTION_ARGS);
extern Datum pg_get_keywords(PG_FUNCTION_ARGS);