Update DB IO for query hash storage and parameter count

The parameter count methods in the PgSQL class have changed
- the function returns a unique list of $ parameters

The count is now done in the DB IO part where it counts over the unique array

Query hash is stored like the query for the current run one (reset on dbExec call).
The method to create the hash is renamed to dbBuildQueryHash instead of "Get".
The dbGetQueryHash function now just returns the last set query hash. There is a matching dbResetQueryHash for unsetting the query hash.

www/admin/class_test.db.encryption.php

@@ -42,7 +42,10 @@ print '<div><a href="class_test.php">Class Test Master</a></div>';
 print '<div><h1>' . $PAGE_NAME . '</h1></div>';
 
 // encryption key
-$key = CreateKey::generateRandomKey();
+$key_new = CreateKey::generateRandomKey();
+print "Secret Key NEW: " . $key_new . "<br>";
+// for reproducable test results
+$key = 'e475c19b9a3c8363feb06b51f5b73f1dc9b6f20757d4ab89509bf5cc70ed30ec';
 print "Secret Key: " . $key . "<br>";
 
 // test text
@@ -105,20 +108,35 @@ $res = $db->dbReturnRowParams(
 		-- in DB encryption
 		pg_digest_bytea, pg_digest_text,
 		pg_hmac_bytea, pg_hmac_text,
-		pg_crypt_bytea, pg_crypt_text
+		pg_crypt_bytea, pg_crypt_text,
+		encode(pg_crypt_bytea, 'hex') AS pg_crypt_bytea_hex,
+		pgp_sym_decrypt(pg_crypt_bytea, $2) AS from_pg_crypt_bytea,
+		pgp_sym_decrypt(decode(pg_crypt_text, 'hex'), $2) AS from_pg_crypt_text
 	FROM
 		test_encryption
 	WHERE
 		cuuid = $1
 	SQL,
 	[
-		$cuuid
+		$cuuid, $key
 	]
 );
 
 print "RES: <pre>" . Support::prAr($res) . "</pre><br>";
 
-// do compare
+if ($res === false) {
+	echo "Failed to run query<br>";
+} else {
+	if (hash_equals($string_hashed, $res['pg_digest_text'])) {
+		print "libsodium and pgcrypto hash match<br>";
+	}
+	if (hash_equals($string_hmac, $res['pg_hmac_text'])) {
+		print "libsodium and pgcrypto hash hmac match<br>";
+	}
+}
+
+
+// do compare for PHP and pgcrypto settings
 
 print "</body></html>";