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Silence compiler warning on an unused variable

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Also, tweak wording in comments (per Andres) and documentation (myself)
to point out that it's the database's default tablespace that can be
passed as 0, not DEFAULTTABLESPACE_OID.  Robert Haas noticed the bug in
the code, but didn't update the accompanying prose.
This commit is contained in:
Alvaro Herrera
2013-07-22 13:15:13 -04:00
parent f01d1ae3a1
commit 0aeb5ae204
3 changed files with 7 additions and 6 deletions
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7
src/backend/utils/adt/dbsize.c
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@ -760,13 +760,14 @@ pg_relation_filenode(PG_FUNCTION_ARGS)
* Get the relation via (reltablespace, relfilenode)
*
* This is expected to be used when somebody wants to match an individual file
* on the filesystem back to its table. Thats not trivially possible via
* pg_class because that doesn't contain the relfilenodes of shared and nailed
* on the filesystem back to its table. That's not trivially possible via
* pg_class, because that doesn't contain the relfilenodes of shared and nailed
* tables.
*
* We don't fail but return NULL if we cannot find a mapping.
*
* Instead of knowing DEFAULTTABLESPACE_OID you can pass 0.
* InvalidOid can be passed instead of the current database's default
* tablespace.
*/
Datum
pg_filenode_relation(PG_FUNCTION_ARGS)