orderbyelimination.out

derby database source code.good for you.

		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
		restriction time (milliseconds) = 0
		projection time (milliseconds) = 0
	Source result set:
		Table Scan ResultSet for T1 at serializable isolation level using share table locking chosen by the optimizer
		Number of opens = 1
		Rows seen = 10
		Rows filtered = 0
		Fetch Size = 16
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
			next time in milliseconds/row = 0
		scan information: 
			Bit set of columns fetched={2}
			Number of columns fetched=1
			Number of pages visited=1
			Number of rows qualified=10
			Number of rows visited=10
			Scan type=heap
			start position: 
null			stop position: 
null			qualifiers:
None
ij> select distinct c3, 1 from t1 order by 2;
C3         |2          
-----------------------
-4         |1          
-3         |1          
2          |1          
3          |1          
4          |1          
ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();
1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Statement Name: 
	null
Statement Text: 
	select distinct c3, 1 from t1 order by 2
Parse Time: 0
Bind Time: 0
Optimize Time: 0
Generate Time: 0
Compile Time: 0
Execute Time: 0
Begin Compilation Timestamp : null
End Compilation Timestamp : null
Begin Execution Timestamp : null
End Execution Timestamp : null
Statement Execution Plan Text: 
Project-Restrict ResultSet (4):
Number of opens = 1
Rows seen = 5
Rows filtered = 0
restriction = false
projection = true
	constructor time (milliseconds) = 0
	open time (milliseconds) = 0
	next time (milliseconds) = 0
	close time (milliseconds) = 0
	restriction time (milliseconds) = 0
	projection time (milliseconds) = 0
Source result set:
	Sort ResultSet:
	Number of opens = 1
	Rows input = 10
	Rows returned = 5
	Eliminate duplicates = true
	In sorted order = false
	Sort information: 
		Number of rows input=10
		Number of rows output=5
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
	Source result set:
		Project-Restrict ResultSet (3):
		Number of opens = 1
		Rows seen = 10
		Rows filtered = 0
		restriction = false
		projection = true
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
			restriction time (milliseconds) = 0
			projection time (milliseconds) = 0
		Source result set:
			Table Scan ResultSet for T1 at serializable isolation level using share table locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 10
			Rows filtered = 0
			Fetch Size = 16
				constructor time (milliseconds) = 0
				open time (milliseconds) = 0
				next time (milliseconds) = 0
				close time (milliseconds) = 0
				next time in milliseconds/row = 0
			scan information: 
				Bit set of columns fetched={2}
				Number of columns fetched=1
				Number of pages visited=1
				Number of rows qualified=10
				Number of rows visited=10
				Scan type=heap
				start position: 
null				stop position: 
null				qualifiers:
None
ij> -- verify that a sort is still done when a unique index 
-- exists
create unique index i1 on t1(c1, c2, c3, c4);
0 rows inserted/updated/deleted
ij> select distinct c4, c3 from t1 where c1 = 1 and c2 = 2 order by c4, c3;
C4         |C3         
-----------------------
3          |4          
4          |3          
ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();
1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Statement Name: 
	null
Statement Text: 
	select distinct c4, c3 from t1 where c1 = 1 and c2 = 2 order by c4, c3
Parse Time: 0
Bind Time: 0
Optimize Time: 0
Generate Time: 0
Compile Time: 0
Execute Time: 0
Begin Compilation Timestamp : null
End Compilation Timestamp : null
Begin Execution Timestamp : null
End Execution Timestamp : null
Statement Execution Plan Text: 
Sort ResultSet:
Number of opens = 1
Rows input = 2
Rows returned = 2
Eliminate duplicates = false
In sorted order = false
Sort information: 
	Number of rows input=2
	Number of rows output=2
	constructor time (milliseconds) = 0
	open time (milliseconds) = 0
	next time (milliseconds) = 0
	close time (milliseconds) = 0
Source result set:
	Project-Restrict ResultSet (2):
	Number of opens = 1
	Rows seen = 2
	Rows filtered = 0
	restriction = false
	projection = true
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
		restriction time (milliseconds) = 0
		projection time (milliseconds) = 0
	Source result set:
		Index Scan ResultSet for T1 using index I1 at serializable isolation level using share row locking chosen by the optimizer
		Number of opens = 1
		Rows seen = 2
		Rows filtered = 0
		Fetch Size = 16
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
			next time in milliseconds/row = 0
		scan information: 
			Bit set of columns fetched={0, 1, 2, 3}
			Number of columns fetched=4
			Number of deleted rows visited=0
			Number of pages visited=1
			Number of rows qualified=2
			Number of rows visited=3
			Scan type=btree
			Tree height=1
			start position: 
	>= on first 2 column(s).
	Ordered null semantics on the following columns: 
			stop position: 
	> on first 2 column(s).
	Ordered null semantics on the following columns: 
			qualifiers:
None
ij> select distinct c3, c4 from t1 where c1 = 1 and c2 = 2 order by c4;
C3         |C4         
-----------------------
4          |3          
3          |4          
ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();
1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Statement Name: 
	null
Statement Text: 
	select distinct c3, c4 from t1 where c1 = 1 and c2 = 2 order by c4
Parse Time: 0
Bind Time: 0
Optimize Time: 0
Generate Time: 0
Compile Time: 0
Execute Time: 0
Begin Compilation Timestamp : null
End Compilation Timestamp : null
Begin Execution Timestamp : null
End Execution Timestamp : null
Statement Execution Plan Text: 
Sort ResultSet:
Number of opens = 1
Rows input = 2
Rows returned = 2
Eliminate duplicates = false
In sorted order = false
Sort information: 
	Number of rows input=2
	Number of rows output=2
	constructor time (milliseconds) = 0
	open time (milliseconds) = 0
	next time (milliseconds) = 0
	close time (milliseconds) = 0
Source result set:
	Project-Restrict ResultSet (2):
	Number of opens = 1
	Rows seen = 2
	Rows filtered = 0
	restriction = false
	projection = true
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
		restriction time (milliseconds) = 0
		projection time (milliseconds) = 0
	Source result set:
		Index Scan ResultSet for T1 using index I1 at serializable isolation level using share row locking chosen by the optimizer
		Number of opens = 1
		Rows seen = 2
		Rows filtered = 0
		Fetch Size = 16
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
			next time in milliseconds/row = 0
		scan information: 
			Bit set of columns fetched={0, 1, 2, 3}
			Number of columns fetched=4
			Number of deleted rows visited=0
			Number of pages visited=1
			Number of rows qualified=2
			Number of rows visited=3
			Scan type=btree
			Tree height=1