diff options
Diffstat (limited to 'src/backend/access/gist/gistbuildbuffers.c')
| -rw-r--r-- | src/backend/access/gist/gistbuildbuffers.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/src/backend/access/gist/gistbuildbuffers.c b/src/backend/access/gist/gistbuildbuffers.c index 4b562d8d3f0..4eab9bb83ac 100644 --- a/src/backend/access/gist/gistbuildbuffers.c +++ b/src/backend/access/gist/gistbuildbuffers.c @@ -757,26 +757,20 @@ gistRelocateBuildBuffersOnSplit(GISTBuildBuffers *gfbb, GISTSTATE *giststate, static void ReadTempFileBlock(BufFile *file, long blknum, void *ptr) { + size_t nread; + if (BufFileSeekBlock(file, blknum) != 0) - elog(ERROR, "could not seek temporary file: %m"); - if (BufFileRead(file, ptr, BLCKSZ) != BLCKSZ) - elog(ERROR, "could not read temporary file: %m"); + elog(ERROR, "could not seek to block %ld in temporary file", blknum); + nread = BufFileRead(file, ptr, BLCKSZ); + if (nread != BLCKSZ) + elog(ERROR, "could not read temporary file: read only %zu of %zu bytes", + nread, (size_t) BLCKSZ); } static void WriteTempFileBlock(BufFile *file, long blknum, void *ptr) { if (BufFileSeekBlock(file, blknum) != 0) - elog(ERROR, "could not seek temporary file: %m"); - if (BufFileWrite(file, ptr, BLCKSZ) != BLCKSZ) - { - /* - * the other errors in Read/WriteTempFileBlock shouldn't happen, but - * an error at write can easily happen if you run out of disk space. - */ - ereport(ERROR, - (errcode_for_file_access(), - errmsg("could not write block %ld of temporary file: %m", - blknum))); - } + elog(ERROR, "could not seek to block %ld in temporary file", blknum); + BufFileWrite(file, ptr, BLCKSZ); } |