predicatepushdown.out

derby database source code.good for you.

End Execution Timestamp : null
Statement Execution Plan Text: 
Hash Join ResultSet:
Number of opens = 1
Rows seen from the left = 7
Rows seen from the right = 9
Rows filtered = 0
Rows returned = 9
	constructor time (milliseconds) = 0
	open time (milliseconds) = 0
	next time (milliseconds) = 0
	close time (milliseconds) = 0
Left result set:
	Sort ResultSet:
	Number of opens = 1
	Rows input = 10
	Rows returned = 7
	Eliminate duplicates = true
	In sorted order = false
	Sort information: 
		Number of rows input=10
		Number of rows output=7
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
	Source result set:
		Union ResultSet:
		Number of opens = 1
		Rows seen from the left = 5
		Rows seen from the right = 5
		Rows returned = 10
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
		Left result set:
			Table Scan ResultSet for T1 at read committed isolation level using share row locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 5
			Rows filtered = 0
			Fetch Size = 1
				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=All
				Number of columns fetched=2
				Number of pages visited=1
				Number of rows qualified=5
				Number of rows visited=5
				Scan type=heap
				start position: 
null				stop position: 
null				qualifiers:
None
		Right result set:
			Table Scan ResultSet for T2 at read committed isolation level using share row locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 5
			Rows filtered = 0
			Fetch Size = 1
				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=All
				Number of columns fetched=2
				Number of pages visited=1
				Number of rows qualified=5
				Number of rows visited=5
				Scan type=heap
				start position: 
null				stop position: 
null				qualifiers:
None
Right result set:
	Hash Table ResultSet (9):
	Number of opens = 7
	Hash table size = 19
	Hash key is column number 0
	Rows seen = 31
	Rows filtered = 0
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
		next time in milliseconds/row = 0
		next qualifiers:
Column[0][0] Id: 0
Operator: =
Ordered nulls: false
Unknown return value: false
Negate comparison result: false
	Source result set:
		Union ResultSet:
		Number of opens = 1
		Rows seen from the left = 19
		Rows seen from the right = 12
		Rows returned = 31
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
		Left result set:
			Table Scan ResultSet for T3 at read committed isolation level using share row locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 19
			Rows filtered = 0
			Fetch Size = 1
				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=All
				Number of columns fetched=2
				Number of pages visited=1
				Number of rows qualified=19
				Number of rows visited=19
				Scan type=heap
				start position: 
null				stop position: 
null				qualifiers:
None
		Right result set:
			Table Scan ResultSet for T4 at read committed isolation level using share row locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 12
			Rows filtered = 0
			Fetch Size = 1
				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=All
				Number of columns fetched=2
				Number of pages visited=1
				Number of rows qualified=12
				Number of rows visited=12
				Scan type=heap
				start position: 
null				stop position: 
null				qualifiers:
None
ij> select * from
  (select * from t1 union all select * from t2) x1,
  (select * from t3 union all select * from t4) x2
where x1.i = x2.a;
I          |J          |A          |B          
-----------------------------------------------
1          |2          |1          |1          
2          |4          |2          |2          
3          |6          |3          |3          
3          |6          |3          |12         
4          |8          |4          |4          
4          |8          |4          |16         
1          |2          |1          |1          
2          |-4         |2          |2          
3          |6          |3          |3          
3          |6          |3          |12         
4          |-8         |4          |4          
4          |-8         |4          |16         
ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();
1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Statement Name: 
	null
Statement Text: 
	select * from
  (select * from t1 union all select * from t2) x1,
  (select * from t3 union all select * from t4) x2
where x1.i = x2.a
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: 
Hash Join ResultSet:
Number of opens = 1
Rows seen from the left = 10
Rows seen from the right = 12
Rows filtered = 0
Rows returned = 12
	constructor time (milliseconds) = 0
	open time (milliseconds) = 0
	next time (milliseconds) = 0
	close time (milliseconds) = 0
Left result set:
	Union ResultSet:
	Number of opens = 1
	Rows seen from the left = 5
	Rows seen from the right = 5
	Rows returned = 10
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
	Left result set:
		Table Scan ResultSet for T1 at read committed isolation level using share row locking chosen by the optimizer
		Number of opens = 1
		Rows seen = 5
		Rows filtered = 0
		Fetch Size = 1
			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=All
			Number of columns fetched=2
			Number of pages visited=1
			Number of rows qualified=5
			Number of rows visited=5
			Scan type=heap
			start position: 
null			stop position: 
null			qualifiers:
None
	Right result set:
		Table Scan ResultSet for T2 at read committed isolation level using share row locking chosen by the optimizer
		Number of opens = 1
		Rows seen = 5
		Rows filtered = 0
		Fetch Size = 1
			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=All
			Number of columns fetched=2
			Number of pages visited=1
			Number of rows qualified=5
			Number of rows visited=5
			Scan type=heap
			start position: 
null			stop position: 
null			qualifiers:
None
Right result set:
	Hash Table ResultSet (8):
	Number of opens = 10
	Hash table size = 19
	Hash key is column number 0
	Rows seen = 31
	Rows filtered = 0
		constructor time (milliseconds) = 0
		open time (milliseconds) = 0
		next time (milliseconds) = 0
		close time (milliseconds) = 0
		next time in milliseconds/row = 0
		next qualifiers:
Column[0][0] Id: 0
Operator: =
Ordered nulls: false
Unknown return value: false
Negate comparison result: false
	Source result set:
		Union ResultSet:
		Number of opens = 1
		Rows seen from the left = 19
		Rows seen from the right = 12
		Rows returned = 31
			constructor time (milliseconds) = 0
			open time (milliseconds) = 0
			next time (milliseconds) = 0
			close time (milliseconds) = 0
		Left result set:
			Table Scan ResultSet for T3 at read committed isolation level using share row locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 19
			Rows filtered = 0
			Fetch Size = 1
				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=All
				Number of columns fetched=2
				Number of pages visited=1
				Number of rows qualified=19
				Number of rows visited=19
				Scan type=heap
				start position: 
null				stop position: 
null				qualifiers:
None
		Right result set:
			Table Scan ResultSet for T4 at read committed isolation level using share row locking chosen by the optimizer
			Number of opens = 1
			Rows seen = 12
			Rows filtered = 0
			Fetch Size = 1
				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=All
				Number of columns fetched=2
				Number of pages visited=1
				Number of rows qualified=12
				Number of rows visited=12
				Scan type=heap
				start position: 
null				stop position: