diff options
Diffstat (limited to 'src/backend/access/gist/gist.c')
| -rw-r--r-- | src/backend/access/gist/gist.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c index e2d3390300e..eba95f18664 100644 --- a/src/backend/access/gist/gist.c +++ b/src/backend/access/gist/gist.c @@ -16,6 +16,7 @@ #include "access/genam.h" #include "access/gist_private.h" +#include "access/heapam_xlog.h" #include "catalog/index.h" #include "catalog/pg_collation.h" #include "miscadmin.h" @@ -71,9 +72,22 @@ createTempGistContext(void) Datum gistbuildempty(PG_FUNCTION_ARGS) { - ereport(ERROR, - (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("unlogged GiST indexes are not supported"))); + Relation index = (Relation) PG_GETARG_POINTER(0); + Buffer buffer; + + /* Initialize the root page */ + buffer = ReadBufferExtended(index, INIT_FORKNUM, P_NEW, RBM_NORMAL, NULL); + LockBuffer(buffer, BUFFER_LOCK_EXCLUSIVE); + + /* Initialize and xlog buffer */ + START_CRIT_SECTION(); + GISTInitBuffer(buffer, F_LEAF); + MarkBufferDirty(buffer); + log_newpage_buffer(buffer); + END_CRIT_SECTION(); + + /* Unlock and release the buffer */ + UnlockReleaseBuffer(buffer); PG_RETURN_VOID(); } @@ -391,7 +405,7 @@ gistplacetopage(Relation rel, Size freespace, GISTSTATE *giststate, dist, oldrlink, oldnsn, leftchildbuf, markfollowright); else - recptr = GetXLogRecPtrForTemp(); + recptr = gistGetFakeLSN(rel); for (ptr = dist; ptr; ptr = ptr->next) { @@ -448,7 +462,7 @@ gistplacetopage(Relation rel, Size freespace, GISTSTATE *giststate, } else { - recptr = GetXLogRecPtrForTemp(); + recptr = gistGetFakeLSN(rel); PageSetLSN(page, recptr); } |