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plan: propagate constant over outer join #7794

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merged 19 commits into from
Oct 16, 2018
Merged

plan: propagate constant over outer join #7794

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71f2b8c
plan: propagate constant over outer join
eurekaka Sep 10, 2018
1e56122
update unit test result due to code change
eurekaka Sep 11, 2018
f18e344
add comments for exported function to shutup gofmt
eurekaka Sep 11, 2018
552f717
add unit test
eurekaka Sep 11, 2018
c951009
fix left outer semi join bug
eurekaka Sep 11, 2018
a7e133c
refactor function and add comments
eurekaka Sep 11, 2018
383b2ab
move unit test to expression package
eurekaka Sep 12, 2018
1cb5043
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 10, 2018
4c58055
use UniqueID to substitute hash code of Column
eurekaka Sep 13, 2018
ba4583f
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 10, 2018
d481b8c
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 11, 2018
e886557
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 12, 2018
4a123a0
rename variables
eurekaka Oct 11, 2018
00f27b7
address comments
eurekaka Oct 12, 2018
2f03d21
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 15, 2018
f4e55bb
fix typo
eurekaka Oct 11, 2018
e5f0691
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 16, 2018
6c01c82
address comments
eurekaka Oct 12, 2018
f69b6f8
Merge branch 'master' into const_prop_outer_join
eurekaka Oct 16, 2018
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6 changes: 3 additions & 3 deletions executor/join_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -876,11 +876,11 @@ func (s *testSuite) TestMergejoinOrder(c *C) {
tk.MustExec("insert into t2 select a*100, b*100 from t1;")

tk.MustQuery("explain select /*+ TIDB_SMJ(t2) */ * from t1 left outer join t2 on t1.a=t2.a and t1.a!=3 order by t1.a;").Check(testkit.Rows(
"MergeJoin_15 12500.00 root left outer join, left key:test.t1.a, right key:test.t2.a, left cond:[ne(test.t1.a, 3)]",
"MergeJoin_15 10000.00 root left outer join, left key:test.t1.a, right key:test.t2.a, left cond:[ne(test.t1.a, 3)]",
"├─TableReader_11 10000.00 root data:TableScan_10",
"│ └─TableScan_10 10000.00 cop table:t1, range:[-inf,+inf], keep order:true, stats:pseudo",
"└─TableReader_13 10000.00 root data:TableScan_12",
" └─TableScan_12 10000.00 cop table:t2, range:[-inf,+inf], keep order:true, stats:pseudo",
"└─TableReader_13 6666.67 root data:TableScan_12",
" └─TableScan_12 6666.67 cop table:t2, range:[-inf,3), (3,+inf], keep order:true, stats:pseudo",
))

tk.MustExec("set @@tidb_max_chunk_size=1")
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