diff options
Diffstat (limited to 'src/backend/storage/file/buffile.c')
| -rw-r--r-- | src/backend/storage/file/buffile.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 8c7d8bcb91d..cc7307ba336 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -314,7 +314,8 @@ BufFileOpenShared(SharedFileSet *fileset, const char *name) if (nfiles == 0) ereport(ERROR, (errcode_for_file_access(), - errmsg("could not open BufFile \"%s\"", name))); + errmsg("could not open temporary file \"%s\" from BufFile \"%s\": %m", + segment_name, name))); file = makeBufFileCommon(nfiles); file->files = files; @@ -793,20 +794,26 @@ BufFileTellBlock(BufFile *file) #endif /* - * Return the current file size. + * Return the current shared BufFile size. * * Counts any holes left behind by BufFileAppend as part of the size. - * Returns -1 on error. + * ereport()s on failure. */ int64 BufFileSize(BufFile *file) { int64 lastFileSize; + Assert(file->fileset != NULL); + /* Get the size of the last physical file by seeking to end. */ lastFileSize = FileSeek(file->files[file->numFiles - 1], 0, SEEK_END); if (lastFileSize < 0) - return -1; + ereport(ERROR, + (errcode_for_file_access(), + errmsg("could not determine size of temporary file \"%s\" from BufFile \"%s\": %m", + FilePathName(file->files[file->numFiles - 1]), + file->name))); file->offsets[file->numFiles - 1] = lastFileSize; return ((file->numFiles - 1) * (int64) MAX_PHYSICAL_FILESIZE) + |