table t = 
QueryResult
col1	col2	col3
----	----	----
1	1.0	aa
2	2.0	bbbb
3	3.0	c c c
4	4.0	
row 0, col 0: "1"
row 0, col 1: "1.0"
row 0, col 2: "aa"
row 1, col 0: "2"
row 1, col 1: "2.0"
row 1, col 2: "bbbb"
row 2, col 0: "3"
row 2, col 1: "3.0"
row 2, col 2: "c c c"
row 3, col 0: "4"
row 3, col 1: "4.0"
row 3, col 2: ""
testing insert of rows:
table t2 = 
QueryResult
col1	col2	col3
----	----	----
3	3.0	c c c
2	2.0	bbbb
1	1.0	aa
1	1.0	aa
3	3.0	c c c
5	5.0	ddd
2	2.0	bbbb
1	1.0	aa
4	4.0	
result after insert:
QueryResult
col1	col2	col3
----	----	----
1	1.0	aa
2	2.0	bbbb
3	3.0	c c c
4	4.0	
1	1.0	aa
3	3.0	c c c
5	5.0	ddd
2	2.0	bbbb
1	1.0	aa
testing remove of rows:
QueryResult
col1	col2	col3
----	----	----
5	5.0	ddd
