Wang Yanlin created CALCITE-3408:
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Summary: Add support for Enumerable Intersect/Minus all
Key: CALCITE-3408
URL: https://issues.apache.org/jira/browse/CALCITE-3408
Project: Calcite
Issue Type: New Feature
Reporter: Wang Yanlin
When running sql with calcite driver
{code:java}
final String sql = "select * from\n"
+ "(select x, y from (values (1, 'a'), (2, 'b'), (2, 'b'), (3, 'c')) as
t(x, y))\n"
+ "except all\n"
+ "(select x, y from (values (1, 'a'), (2, 'c'), (4, 'x')) as t2(x,
y))\n";
{code}
got
{code:java}
java.sql.SQLException: Error while executing SQL "explain plan for select * from
(select x, y from (values (1, 'a'), (2, 'b'), (2, 'b'), (3, 'c')) as t(x, y))
except all
(select x, y from (values (1, 'a'), (2, 'c'), (4, 'x')) as t2(x, y))
": There are not enough rules to produce a node with desired properties:
convention=ENUMERABLE, sort=[].
Missing conversion is LogicalMinus[convention: NONE -> ENUMERABLE]
There is 1 empty subset: rel#27:Subset#4.ENUMERABLE.[], the relevant part of
the original plan is as follows
22:LogicalMinus(all=[true])
1:LogicalValues(subset=[rel#16:Subset#0.NONE.[]], tuples=[[{ 1, 'a' }, { 2,
'b' }, { 2, 'b' }, { 3, 'c' }]])
5:LogicalValues(subset=[rel#19:Subset#2.NONE.[]], tuples=[[{ 1, 'a' }, { 2,
'c' }, { 4, 'x' }]])
Root: rel#27:Subset#4.ENUMERABLE.[]
Original rel:
LogicalMinus(all=[true]): rowcount = 3.0, cumulative cost = {17.0 rows, 19.0
cpu, 0.0 io}, id = 14
LogicalProject(X=[$0], Y=[$1]): rowcount = 4.0, cumulative cost = {8.0 rows,
9.0 cpu, 0.0 io}, id = 9
LogicalValues(tuples=[[{ 1, 'a' }, { 2, 'b' }, { 2, 'b' }, { 3, 'c' }]]):
rowcount = 4.0, cumulative cost = {4.0 rows, 1.0 cpu, 0.0 io}, id = 1
LogicalProject(X=[$0], Y=[$1]): rowcount = 3.0, cumulative cost = {6.0 rows,
7.0 cpu, 0.0 io}, id = 12
LogicalValues(tuples=[[{ 1, 'a' }, { 2, 'c' }, { 4, 'x' }]]): rowcount =
3.0, cumulative cost = {3.0 rows, 1.0 cpu, 0.0 io}, id = 5
{code}
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