- Implemented select_union_intersect_subtract general optimization

- Added tests for the new optimization git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@268 014f5005-505e-4b48-8d0a-63407b615a7c
2011-02-18 18:11:39 +00:00
parent 7ab6ed8ed7
commit 71697bb2e8
9 changed files with 37 additions and 2 deletions
--- a/test/union_and_select.query
+++ b/test/union_and_select.query
@@ -0,0 +1 @@
+σ skill=='C'(skills) ᑎ σ id%2==0 (skills)
--- a/test/union_and_select.result
+++ b/test/union_and_select.result
@@ -0,0 +1,4 @@
+id,skill
+0,C
+2,C
+4,C
--- a/test/union_not_select.query
+++ b/test/union_not_select.query
@@ -0,0 +1 @@
+σ skill=='C' (skills) - σ id%2==0(skills)
--- a/test/union_not_select.result
+++ b/test/union_not_select.result
@@ -0,0 +1,3 @@
+id,skill
+5,C
+7,C
--- a/test/union_or_select.query
+++ b/test/union_or_select.query
@@ -0,0 +1 @@
+σ age<21 (people) ᑌ σage >30(people)
--- a/test/union_or_select.result
+++ b/test/union_or_select.result
@@ -0,0 +1,3 @@
+id,name,chief,age
+3,dean,1,33
+1,carl,0,20
				`@@ -0,0 +1 @@`
				`σ skill=='C'(skills) ᑎ σ id%2==0 (skills)`
				`@@ -0,0 +1 @@`
				`σ skill=='C' (skills) - σ id%2==0(skills)`