LPD-20641 Optimize trying to reduce as much as possible String manipu…

…lation. It's more likely to encounter long String than String with multiple placeholder occurrences.

portal-impl/src/com/liferay/portal/dao/sql/transformer/BaseSQLTransformerLogic.java

@@ -260,11 +260,11 @@ else if (character == CharPool.CLOSE_PARENTHESIS) {
 
 					if (parenthesisCount == 0) {
 						Matcher matcher = castPattern.matcher(
-							sql.substring(0, i + 1));
+							sql.substring(start, i + 1));
 
-						return apply(
-							castFunction.apply(matcher) +
-								_safeSubstring(sql, i + 1));
+						return sql.substring(0, start) +
+							apply(castFunction.apply(matcher)) +
+								apply(_safeSubstring(sql, i + 1));
 					}
 				}