📄 orderbyelimination.out
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Rows input = 10Rows returned = 9Eliminate duplicates = trueIn sorted order = falseSort information: Number of rows input=10 Number of rows output=9 constructor time (milliseconds) = 0 open time (milliseconds) = 0 next time (milliseconds) = 0 close time (milliseconds) = 0Source 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, 3} Number of columns fetched=2 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:Noneij> -- no prefixselect distinct c3, c4 from t1 order by 2;C3 |C4 ------------------------4 |-5 -3 |-4 3 |2 4 |2 2 |3 4 |3 2 |4 3 |4 4 |5 ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();1 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Statement Name: nullStatement Text: -- no prefixselect distinct c3, c4 from t1 order by 2Parse Time: 0Bind Time: 0Optimize Time: 0Generate Time: 0Compile Time: 0Execute Time: 0Begin Compilation Timestamp : nullEnd Compilation Timestamp : nullBegin Execution Timestamp : nullEnd Execution Timestamp : nullStatement Execution Plan Text: Project-Restrict ResultSet (4):Number of opens = 1Rows seen = 9Rows filtered = 0restriction = falseprojection = true constructor time (milliseconds) = 0 open time (milliseconds) = 0 next time (milliseconds) = 0 close time (milliseconds) = 0 restriction time (milliseconds) = 0 projection time (milliseconds) = 0Source result set: Sort ResultSet: Number of opens = 1 Rows input = 10 Rows returned = 9 Eliminate duplicates = true In sorted order = false Sort information: Number of rows input=10 Number of rows output=9 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, 3} Number of columns fetched=2 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:Noneij> select distinct c3, c4 from t1 order by c4;C3 |C4 ------------------------4 |-5 -3 |-4 3 |2 4 |2 2 |3 4 |3 2 |4 3 |4 4 |5 ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();1 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Statement Name: nullStatement Text: select distinct c3, c4 from t1 order by c4Parse Time: 0Bind Time: 0Optimize Time: 0Generate Time: 0Compile Time: 0Execute Time: 0Begin Compilation Timestamp : nullEnd Compilation Timestamp : nullBegin Execution Timestamp : nullEnd Execution Timestamp : nullStatement Execution Plan Text: Project-Restrict ResultSet (4):Number of opens = 1Rows seen = 9Rows filtered = 0restriction = falseprojection = true constructor time (milliseconds) = 0 open time (milliseconds) = 0 next time (milliseconds) = 0 close time (milliseconds) = 0 restriction time (milliseconds) = 0 projection time (milliseconds) = 0Source result set: Sort ResultSet: Number of opens = 1 Rows input = 10 Rows returned = 9 Eliminate duplicates = true In sorted order = false Sort information: Number of rows input=10 Number of rows output=9 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, 3} Number of columns fetched=2 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:Noneij> -- expressionselect distinct c3, 1 from t1 order by 1;C3 |2 ------------------------4 |1 -3 |1 2 |1 3 |1 4 |1 ij> values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS();1 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Statement Name: nullStatement Text: -- expressionselect distinct c3, 1 from t1 order by 1Parse Time: 0Bind Time: 0Optimize Time: 0Generate Time: 0Compile Time: 0Execute Time: 0Begin Compilation Timestamp : nullEnd Compilation Timestamp : nullBegin Execution Timestamp : nullEnd Execution Timestamp : nullStatement Execution Plan Text: Sort ResultSet:Number of opens = 1Rows input = 10Rows returned = 5Eliminate duplicates = trueIn sorted order = falseSort 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) = 0Source result set: Project-Restrict ResultSet (3): Number of opens = 1 Rows seen = 10 Rows filtered = 0 restriction = false projection = true
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