diff options
Diffstat (limited to 'src/backend/access/gist/gistxlog.c')
| -rw-r--r-- | src/backend/access/gist/gistxlog.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/backend/access/gist/gistxlog.c b/src/backend/access/gist/gistxlog.c index d3f3a7b803..b60dba052f 100644 --- a/src/backend/access/gist/gistxlog.c +++ b/src/backend/access/gist/gistxlog.c @@ -449,6 +449,9 @@ gist_redo(XLogReaderState *record) case XLOG_GIST_PAGE_DELETE: gistRedoPageDelete(record); break; + case XLOG_GIST_ASSIGN_LSN: + /* nop. See gistGetFakeLSN(). */ + break; default: elog(PANIC, "gist_redo: unknown op code %u", info); } @@ -593,6 +596,24 @@ gistXLogPageDelete(Buffer buffer, FullTransactionId xid, } /* + * Write an empty XLOG record to assign a distinct LSN. + */ +XLogRecPtr +gistXLogAssignLSN(void) +{ + int dummy = 0; + + /* + * Records other than SWITCH_WAL must have content. We use an integer 0 to + * follow the restriction. + */ + XLogBeginInsert(); + XLogSetRecordFlags(XLOG_MARK_UNIMPORTANT); + XLogRegisterData((char *) &dummy, sizeof(dummy)); + return XLogInsert(RM_GIST_ID, XLOG_GIST_ASSIGN_LSN); +} + +/* * Write XLOG record about reuse of a deleted page. */ void |