diff --git a/dbswitch-common/pom.xml b/dbswitch-common/pom.xml
index f0ceb46705a1a322e053284c2c90f464659ecd33..a970a7fe70a261445ebc7513b63acd20c1eb90f6 100644
--- a/dbswitch-common/pom.xml
+++ b/dbswitch-common/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-common</artifactId>
diff --git a/dbswitch-core/pom.xml b/dbswitch-core/pom.xml
index 02deaedbab9fbf772b565a57d6df8987532bd194..7f238b886df8d6e8842aa6d54d7942f7ae47f871 100644
--- a/dbswitch-core/pom.xml
+++ b/dbswitch-core/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-core</artifactId>
diff --git a/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/AbstractDatabase.java b/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/AbstractDatabase.java
index 89cd82d9fdc6d73a68808d033262e9cc91bf86b6..2ebdd54d160c0eb786e476588a34805d8b641857 100644
--- a/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/AbstractDatabase.java
+++ b/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/AbstractDatabase.java
@@ -18,6 +18,7 @@ import java.util.HashSet;
 import java.sql.Connection;
 import java.sql.DatabaseMetaData;
 import java.sql.DriverManager;
+import java.sql.Statement;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
@@ -217,8 +218,8 @@ public abstract class AbstractDatabase implements IDatabaseInterface {
 	@Override
 	public void testQuerySQL(String sql) {
 		String wrapperSql = this.getTestQuerySQL(sql);
-		try(PreparedStatement pstmt = this.connection.prepareStatement(wrapperSql);) {
-			pstmt.executeQuery();
+		try (Statement statement = this.connection.createStatement();) {
+			statement.execute(wrapperSql);
 		} catch (SQLException e) {
 			throw new RuntimeException(e);
 		}
diff --git a/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabaseGreenplumImpl.java b/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabaseGreenplumImpl.java
index a436238d2cc048979136b3413d503ff79bfd4671..109958317f5d25a0e958cff73d330f09b5b33022 100644
--- a/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabaseGreenplumImpl.java
+++ b/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabaseGreenplumImpl.java
@@ -112,7 +112,11 @@ public class DatabaseGreenplumImpl extends AbstractDatabase implements IDatabase
 			if (length < 1 || length >= AbstractDatabase.CLOB_LENGTH) {
 				retval += "TEXT";
 			} else {
-				retval += "VARCHAR(" + length + ")";
+				if (null != pks && pks.contains(fieldname)) {
+					retval += "VARCHAR(" + length + ")";
+				} else {
+					retval += "TEXT";
+				}
 			}
 			break;
 		case ColumnMetaData.TYPE_BINARY:
diff --git a/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabasePostgresImpl.java b/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabasePostgresImpl.java
index 891a405d26996e5736ed8e86c32fa9b2d6b85b9a..6582d7f8d05119a2030d6d1527f1c484b7397930 100644
--- a/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabasePostgresImpl.java
+++ b/dbswitch-core/src/main/java/com/gitee/dbswitch/core/database/impl/DatabasePostgresImpl.java
@@ -112,7 +112,11 @@ public class DatabasePostgresImpl extends AbstractDatabase implements IDatabaseI
 			if (length < 1 || length >= AbstractDatabase.CLOB_LENGTH) {
 				retval += "TEXT";
 			} else {
-				retval += "VARCHAR(" + length + ")";
+				if (null != pks && pks.contains(fieldname)) {
+					retval += "VARCHAR(" + length + ")";
+				} else {
+					retval += "TEXT";
+				}
 			}
 			break;
 		case ColumnMetaData.TYPE_BINARY:
diff --git a/dbswitch-data/pom.xml b/dbswitch-data/pom.xml
index 36dd9348b16ed4aa2ae60f7db33996abdaf88dbe..d15d4af517baf540d1c240812a77e68475a58a80 100644
--- a/dbswitch-data/pom.xml
+++ b/dbswitch-data/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-data</artifactId>
diff --git a/dbswitch-dbchange/pom.xml b/dbswitch-dbchange/pom.xml
index 2c4bc2655d8e29678a5bf174221f26a755b78f01..fba428922e4dc69acf078b0a73f9868e9530c04b 100644
--- a/dbswitch-dbchange/pom.xml
+++ b/dbswitch-dbchange/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-dbchange</artifactId>
diff --git a/dbswitch-dbcommon/pom.xml b/dbswitch-dbcommon/pom.xml
index 3936a1da87d83a2f7271591df1a5b5656fadc54a..23759be99ccd3c092cfdc0c021b5987db0568d79 100644
--- a/dbswitch-dbcommon/pom.xml
+++ b/dbswitch-dbcommon/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>com.gitee</groupId>
     <artifactId>dbswitch</artifactId>
-    <version>1.5.1</version>
+    <version>1.5.2</version>
   </parent>
   
   <artifactId>dbswitch-dbcommon</artifactId>
diff --git a/dbswitch-dbsynch/pom.xml b/dbswitch-dbsynch/pom.xml
index 66ecd11414310f1528d41ea54b8ba5dffb7209b7..a3b8f74780e419e375125d93e98414383360122b 100644
--- a/dbswitch-dbsynch/pom.xml
+++ b/dbswitch-dbsynch/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>com.gitee</groupId>
     <artifactId>dbswitch</artifactId>
-    <version>1.5.1</version>
+    <version>1.5.2</version>
   </parent>
   
   <artifactId>dbswitch-dbsynch</artifactId>
diff --git a/dbswitch-dbwriter/pom.xml b/dbswitch-dbwriter/pom.xml
index 5b65d9edb14433378ac735794a878387e0701352..9beee526b2ac6aa52e8a94dd8aa38bcdbc25ca2c 100644
--- a/dbswitch-dbwriter/pom.xml
+++ b/dbswitch-dbwriter/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-dbwriter</artifactId>
diff --git a/dbswitch-pgwriter/pom.xml b/dbswitch-pgwriter/pom.xml
index 00f99a31f1c5c6f1f26bc67ca91b4ca2de33b89c..093e225cb9d9b4b512908bcf2f2476ffd4561a57 100644
--- a/dbswitch-pgwriter/pom.xml
+++ b/dbswitch-pgwriter/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 	
 	<artifactId>dbswitch-pgwriter</artifactId>
diff --git a/dbswitch-sql/pom.xml b/dbswitch-sql/pom.xml
index 9103616cafa30235d7eb2fd8571b47be8f5420f3..625aa4efca871c9e2786e87f457f38bfdef1336f 100644
--- a/dbswitch-sql/pom.xml
+++ b/dbswitch-sql/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-sql</artifactId>
diff --git a/dbswitch-webapi/pom.xml b/dbswitch-webapi/pom.xml
index 77d2c66bc437baee12a445fadbf019c8ab2d3e3f..9138d34a80125ded4c35e4e91d57899963a81308 100644
--- a/dbswitch-webapi/pom.xml
+++ b/dbswitch-webapi/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>dbswitch-webapi</artifactId>
diff --git a/package-tool/pom.xml b/package-tool/pom.xml
index 85cb8815497708bbd7e422b86c5dcd43c1e5edf2..930b4f8d96e1a5f5aa6e8c1dde13ccacaa8f0138 100644
--- a/package-tool/pom.xml
+++ b/package-tool/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>com.gitee</groupId>
 		<artifactId>dbswitch</artifactId>
-		<version>1.5.1</version>
+		<version>1.5.2</version>
 	</parent>
 
 	<artifactId>package-tool</artifactId>
diff --git a/package-tool/src/main/assembly/bin/datasync.sh b/package-tool/src/main/assembly/bin/datasync.sh
index 3d370ff0e69e04221321d2e96b0a51fbd51941a8..46bb506ea8cbcf6df429255b9760c084ae71951a 100644
--- a/package-tool/src/main/assembly/bin/datasync.sh
+++ b/package-tool/src/main/assembly/bin/datasync.sh
@@ -21,7 +21,7 @@ APP_LIB_PATH=$APP_HOME/lib
 APP_CONF_PATH=$APP_HOME/conf
 
 # JVMFLAGS JVM参数可以在这里设置
-JVMFLAGS="-Xms1024m -Xmx1024m -Xmn512m -XX:+DisableExplicitGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -Dfile.encoding=UTF-8 -Doracle.jdbc.J2EE13Compliant=true"
+JVMFLAGS="-Xms2g -Xmx2g -Xmn1g -XX:+DisableExplicitGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -Dfile.encoding=UTF-8 -Doracle.jdbc.J2EE13Compliant=true"
 
 if [ "$JAVA_HOME" != "" ]; then
   JAVA="$JAVA_HOME/bin/java"
diff --git a/pom.xml b/pom.xml
index d0ebc5009cb76d9bda4e866184dcf816161b6994..2d0a1e3e57b48ac4de5008ae3d30b068d1401547 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 
 	<groupId>com.gitee</groupId>
 	<artifactId>dbswitch</artifactId>
-	<version>1.5.1</version>
+	<version>1.5.2</version>
 	<packaging>pom</packaging>
 	<name>dbswitch</name>
 	<description>database switch project</description>
diff --git a/version.cmd b/version.cmd
index a3325f930bc314b7860bc79f9adebac1243aa655..3271f5abd8185909a3319e6f23bc1a6bfbba3ba7 100644
--- a/version.cmd
+++ b/version.cmd
@@ -1,6 +1,6 @@
 @echo off
 
-set APP_VERSION=1.5.1
+set APP_VERSION=1.5.2
 
 echo "Clean Project ..."
 call mvn clean -f pom.xml