From dd1bb6e0369c3cd3eed49b798454c182571b0b68 Mon Sep 17 00:00:00 2001
From: slguan <guanshengliang@qq.com>
Date: Fri, 8 May 2020 15:36:39 +0800
Subject: [PATCH] fix alter db bug

---
 src/mnode/src/mgmtDb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mnode/src/mgmtDb.c b/src/mnode/src/mgmtDb.c
index d8dfcbe213..5cee1f30cd 100644
--- a/src/mnode/src/mgmtDb.c
+++ b/src/mnode/src/mgmtDb.c
@@ -803,7 +803,7 @@ static SDbCfg mgmtGetAlterDbOption(SDbObj *pDb, SCMAlterDbMsg *pAlter) {
     newCfg.daysToKeep2 = daysToKeep2;
   }
 
-  if (compression > 0 && compression != pDb->cfg.compression) {
+  if (compression >= 0 && compression != pDb->cfg.compression) {
     mTrace("db:%s, compression:%d change to %d", pDb->name, pDb->cfg.compression, compression);
     newCfg.compression = compression;
   }
@@ -823,7 +823,7 @@ static SDbCfg mgmtGetAlterDbOption(SDbObj *pDb, SCMAlterDbMsg *pAlter) {
     }
   }
 
-  if (walLevel > 0 && (walLevel < TSDB_MIN_WAL_LEVEL || walLevel > TSDB_MAX_WAL_LEVEL)) {
+  if (walLevel >= 0 && (walLevel < TSDB_MIN_WAL_LEVEL || walLevel > TSDB_MAX_WAL_LEVEL)) {
     mError("db:%s, wal level %d should be between 0-2, origin:%d", pDb->name, walLevel, pDb->cfg.walLevel);
     terrno = TSDB_CODE_INVALID_OPTION;
   }
-- 
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