diff options
Diffstat (limited to 'src/backend/commands/tablecmds.c')
| -rw-r--r-- | src/backend/commands/tablecmds.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c index 6f1a429c7e5..0b518cf6721 100644 --- a/src/backend/commands/tablecmds.c +++ b/src/backend/commands/tablecmds.c @@ -10820,21 +10820,14 @@ static void copy_relation_data(SMgrRelation src, SMgrRelation dst, ForkNumber forkNum, char relpersistence) { - char *buf; + PGAlignedBlock buf; Page page; bool use_wal; bool copying_initfork; BlockNumber nblocks; BlockNumber blkno; - /* - * palloc the buffer so that it's MAXALIGN'd. If it were just a local - * char[] array, the compiler might align it on any byte boundary, which - * can seriously hurt transfer speed to and from the kernel; not to - * mention possibly making log_newpage's accesses to the page header fail. - */ - buf = (char *) palloc(BLCKSZ); - page = (Page) buf; + page = (Page) buf.data; /* * The init fork for an unlogged relation in many respects has to be @@ -10858,7 +10851,7 @@ copy_relation_data(SMgrRelation src, SMgrRelation dst, /* If we got a cancel signal during the copy of the data, quit */ CHECK_FOR_INTERRUPTS(); - smgrread(src, forkNum, blkno, buf); + smgrread(src, forkNum, blkno, buf.data); if (!PageIsVerified(page, blkno)) ereport(ERROR, @@ -10884,11 +10877,9 @@ copy_relation_data(SMgrRelation src, SMgrRelation dst, * rel, because there's no need for smgr to schedule an fsync for this * write; we'll do it ourselves below. */ - smgrextend(dst, forkNum, blkno, buf, true); + smgrextend(dst, forkNum, blkno, buf.data, true); } - pfree(buf); - /* * If the rel is WAL-logged, must fsync before commit. We use heap_sync * to ensure that the toast table gets fsync'd too. (For a temp or |