Introduce prepareMethod=scopeTempTablesToConnection for connection-scoped temporary tables (#2844)

Introduce prepareMethod=scopeTempTablesToConnection for connection-scoped temporary tables.

Author: divang

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java

@@ -15,7 +15,9 @@
 import java.net.InetSocketAddress;
 import java.net.SocketException;
 import java.net.UnknownHostException;
+import java.sql.Blob;
 import java.sql.CallableStatement;
+import java.sql.Clob;
 import java.sql.Connection;
 import java.sql.DatabaseMetaData;
 import java.sql.PreparedStatement;
@@ -8521,46 +8523,6 @@ void endRequestInternal() throws SQLException {
         loggerExternal.exiting(loggingClassName, "endRequest", this);
     }
 
-    /**
-     * Replaces JDBC syntax parameter markets '?' with SQL Server parameter markers @p1, @p2 etc...
-     * 
-     * @param sql
-     *        the user's SQL
-     * @throws SQLServerException
-     * @return the returned syntax
-     */
-    static final char[] OUT = {' ', 'O', 'U', 'T'};
-
-    String replaceParameterMarkers(String sqlSrc, int[] paramPositions, Parameter[] params,
-            boolean isReturnValueSyntax) {
-        final int MAX_PARAM_NAME_LEN = 6;
-        char[] sqlDst = new char[sqlSrc.length() + (params.length * (MAX_PARAM_NAME_LEN + OUT.length))
-                + (params.length * 2)];
-        int dstBegin = 0;
-        int srcBegin = 0;
-        int nParam = 0;
-
-        int paramIndex = 0;
-        while (true) {
-            int srcEnd = (paramIndex >= paramPositions.length) ? sqlSrc.length() : paramPositions[paramIndex];
-            sqlSrc.getChars(srcBegin, srcEnd, sqlDst, dstBegin);
-            dstBegin += srcEnd - srcBegin;
-
-            if (sqlSrc.length() == srcEnd)
-                break;
-
-            dstBegin += makeParamName(nParam++, sqlDst, dstBegin, true);
-            srcBegin = srcEnd + 1 <= sqlSrc.length() - 1 && sqlSrc.charAt(srcEnd + 1) == ' ' ? srcEnd + 2 : srcEnd + 1;
-
-            if (params[paramIndex++].isOutput() && (!isReturnValueSyntax || paramIndex > 1)) {
-                System.arraycopy(OUT, 0, sqlDst, dstBegin, OUT.length);
-                dstBegin += OUT.length;
-            }
-        }
-
-        return new String(sqlDst, 0, dstBegin);
-    }
-
     /**
      * Makes a SQL Server style parameter name.
      * 

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerDriver.java

@@ -532,7 +532,8 @@ public String toString() {
 
 enum PrepareMethod {
     PREPEXEC("prepexec"), // sp_prepexec, default prepare method
-    PREPARE("prepare");
+    PREPARE("prepare"),
+    SCOPE_TEMP_TABLES_TO_CONNECTION("scopeTempTablesToConnection");
 
     private final String value;
 
@@ -840,7 +841,8 @@ public final class SQLServerDriver implements java.sql.Driver {
                     SQLServerDriverStringProperty.SERVER_CERTIFICATE.getDefaultValue(), false, null),
             new SQLServerDriverPropertyInfo(SQLServerDriverStringProperty.PREPARE_METHOD.toString(),
                     SQLServerDriverStringProperty.PREPARE_METHOD.getDefaultValue(), false,
-                    new String[] {PrepareMethod.PREPEXEC.toString(), PrepareMethod.PREPARE.toString()}),
+            new String[] { PrepareMethod.PREPEXEC.toString(), PrepareMethod.PREPARE.toString(),
+                    PrepareMethod.SCOPE_TEMP_TABLES_TO_CONNECTION.toString() }),
             new SQLServerDriverPropertyInfo(SQLServerDriverStringProperty.FAILOVER_PARTNER.toString(),
                     SQLServerDriverStringProperty.FAILOVER_PARTNER.getDefaultValue(), false, null),
             new SQLServerDriverPropertyInfo(SQLServerDriverStringProperty.HOSTNAME_IN_CERTIFICATE.toString(),

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerParameterMetaData.java

@@ -364,7 +364,7 @@ private void checkClosed() throws SQLServerException {
             else {
                 queryMetaMap = new HashMap<>();
                 if (con.getServerMajorVersion() >= SQL_SERVER_2012_VERSION && !st.getUseFmtOnly()) {
-                    String preparedSQL = con.replaceParameterMarkers(stmtParent.userSQL,
+                    String preparedSQL = stmtParent.replaceParameterMarkers(stmtParent.userSQL,
                             stmtParent.userSQLParamPositions, stmtParent.inOutParam, stmtParent.bReturnValueSyntax);
 
                     try (SQLServerCallableStatement cstmt = (SQLServerCallableStatement) con