diff options
Diffstat (limited to 'src/backend/storage/file/fd.c')
| -rw-r--r-- | src/backend/storage/file/fd.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c index faa73061cf3..0fd1bbde5b0 100644 --- a/src/backend/storage/file/fd.c +++ b/src/backend/storage/file/fd.c @@ -251,8 +251,10 @@ static AllocateDesc *allocatedDescs = NULL; static long tempFileCounter = 0; /* - * Array of OIDs of temp tablespaces. When numTempTableSpaces is -1, - * this has not been set in the current transaction. + * Array of OIDs of temp tablespaces. (Some entries may be InvalidOid, + * indicating that the current database's default tablespace should be used.) + * When numTempTableSpaces is -1, this has not been set in the current + * transaction. */ static Oid *tempTableSpaces = NULL; static int numTempTableSpaces = -1; @@ -2670,6 +2672,9 @@ closeAllVfds(void) * unless this function is called again before then. It is caller's * responsibility that the passed-in array has adequate lifespan (typically * it'd be allocated in TopTransactionContext). + * + * Some entries of the array may be InvalidOid, indicating that the current + * database's default tablespace should be used. */ void SetTempTablespaces(Oid *tableSpaces, int numSpaces) @@ -2709,7 +2714,10 @@ TempTablespacesAreSet(void) * GetTempTablespaces * * Populate an array with the OIDs of the tablespaces that should be used for - * temporary files. Return the number that were copied into the output array. + * temporary files. (Some entries may be InvalidOid, indicating that the + * current database's default tablespace should be used.) At most numSpaces + * entries will be filled. + * Returns the number of OIDs that were copied into the output array. */ int GetTempTablespaces(Oid *tableSpaces, int numSpaces) |