auto-fetching all table rows causes performance problems

[bmrobin]

When you open a table the default behavior is to run SELECT * FROM {keyspace}.{table}. This crashed my browser because the table I happened to click on in my database had over 100K rows in it. Since this was one of the smaller tables in the keyspace I was working with I quickly realized that the default behavior of selecting all rows wasn't going to work for me. I forked the repository and implemented a default behavior of getting the first 15 rows, with the ability to modify this number or disable it entirely.

[bmrobin]

#13