diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index d86556121b..e5fec67617 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -216,7 +216,7 @@ int64_t tsTickPerHour[] = {3600000L, 3600000000L, 3600000000000L};
 char tsLossyColumns[32] = "";  // "float|double" means all float and double columns can be lossy compressed.  set empty
                                // can close lossy compress.
 // below option can take effect when tsLossyColumns not empty
-double   tsFPrecision = 1E-8;                   // float column precision
+float    tsFPrecision = 1E-8;                   // float column precision
 double   tsDPrecision = 1E-16;                  // double column precision
 uint32_t tsMaxRange = 500;                      // max quantization intervals
 uint32_t tsCurRange = 100;                      // current quantization intervals
@@ -649,7 +649,7 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
     return -1;
 
   if (cfgAddString(pCfg, "LossyColumns", tsLossyColumns, CFG_SCOPE_SERVER) != 0) return -1;
-  if (cfgAddDouble(pCfg, "FPrecision", tsFPrecision, 0.0f, 1000000.0f, CFG_SCOPE_SERVER) != 0) return -1;
+  if (cfgAddFloat(pCfg, "FPrecision", tsFPrecision, 0.0f, 100000.0f, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddDouble(pCfg, "DPrecision", tsDPrecision, 0.0f, 1000000.0f, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddInt32(pCfg, "MaxRange", tsMaxRange, 0, 65536, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddInt32(pCfg, "CurRange", tsCurRange, 0, 65536, CFG_SCOPE_SERVER) != 0) return -1;
diff --git a/source/util/src/tcompression.c b/source/util/src/tcompression.c
index 70a18e9a72..94acbe7007 100644
--- a/source/util/src/tcompression.c
+++ b/source/util/src/tcompression.c
@@ -70,7 +70,7 @@ bool lossyFloat = false;
 bool lossyDouble = false;
 
 // init call
-int32_t tsCompressInit(char* lossyColumns, double fPrecision, double dPrecision, uint32_t maxIntervals, uint32_t intervals,
+int32_t tsCompressInit(char* lossyColumns, float fPrecision, double dPrecision, uint32_t maxIntervals, uint32_t intervals,
                        int32_t ifAdtFse, const char* compressor) {
   // config
   if (lossyColumns[0] == 0) {
diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index cbc0c5bd4d..34c3222bff 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -406,7 +406,7 @@ int32_t cfgAddInt64(SConfig *pCfg, const char *name, int64_t defaultVal, int64_t
   return cfgAddItem(pCfg, &item, name);
 }
 
-int32_t cfgAddFloat(SConfig *pCfg, const char *name, float defaultVal, double minval, double maxval, int8_t scope) {
+int32_t cfgAddFloat(SConfig *pCfg, const char *name, float defaultVal, float minval, float maxval, int8_t scope) {
   if (defaultVal < minval || defaultVal > maxval) {
     terrno = TSDB_CODE_OUT_OF_RANGE;
     return -1;
@@ -422,7 +422,7 @@ int32_t cfgAddDouble(SConfig *pCfg, const char *name, double defaultVal, double
     return -1;
   }
 
-  SConfigItem item = {.dtype = CFG_DTYPE_DOUBLE, .fval = defaultVal, .fmin = minval, .fmax = maxval, .scope = scope};
+  SConfigItem item = {.dtype = CFG_DTYPE_DOUBLE, .dval = defaultVal, .fmin = minval, .fmax = maxval, .scope = scope};
   return cfgAddItem(pCfg, &item, name);
 }
 
diff --git a/utils/TSZ/sz/src/td_sz.c b/utils/TSZ/sz/src/td_sz.c
index f81fb47dc9..0dd2e6e003 100644
--- a/utils/TSZ/sz/src/td_sz.c
+++ b/utils/TSZ/sz/src/td_sz.c
@@ -24,7 +24,7 @@
 //
 // Init  success return 1 else 0
 //
-void tdszInit(double fPrecision, double dPrecision, unsigned int maxIntervals, unsigned int intervals, int ifAdtFse, const char* compressor)
+void tdszInit(float fPrecision, double dPrecision, unsigned int maxIntervals, unsigned int intervals, int ifAdtFse, const char* compressor)
 {
 	// need malloc
 	if(confparams_cpr == NULL)