public String getSchemaFromQualifiedTableName(String tableName) {

        if (tableName.split("\\.").length - 1 > 0) {
            String s = tableName.substring(0, tableName.lastIndexOf("."));
            return s.substring(s.lastIndexOf(".") + 1);
        }
        // No schema defined in the tableName
        return null;
    }
When using a table name in a generated SQL query, how (if at all)
should we escape that column name? e.g., a table named "table"
may need to be quoted with backtiks: "`table`".

@param tableName the table name as provided by the user, etc.
@return how the table name should be rendered in the sql text.
src/main/java/org/replicadb/manager/ConnManager.java