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Merge pull request #1962 from tntnatbry/MCOL-4642
MCOL-4642 NOT IN subquery containing an isnull in the OR predicate crashes server.
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@ -266,7 +266,6 @@ void InSub::handleFunc(gp_walk_info* gwip, Item_func* func)
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if (cond->argument_list()->elements == 1)
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if (cond->argument_list()->elements == 1)
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return;
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return;
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// (cache=item or isnull(item)) case. remove "or isnull()"
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if (cond->argument_list()->elements == 2)
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if (cond->argument_list()->elements == 2)
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{
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{
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// don't know how to deal with this. don't think it's a fatal error either.
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// don't know how to deal with this. don't think it's a fatal error either.
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@ -278,35 +277,22 @@ void InSub::handleFunc(gp_walk_info* gwip, Item_func* func)
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if (!pt->left() || !pt->right())
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if (!pt->left() || !pt->right())
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return;
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return;
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SimpleFilter* sf = dynamic_cast<SimpleFilter*>(pt->left()->data());
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SimpleFilter* lsf = dynamic_cast<SimpleFilter*>(pt->left()->data());
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SimpleFilter* rsf = dynamic_cast<SimpleFilter*>(pt->right()->data());
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//assert (sf && sf->op()->op() == execplan::OP_ISNULL);
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if (!lsf || !rsf)
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if (!sf || sf->op()->op() != execplan::OP_ISNULL)
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return;
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return;
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delete sf;
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// (a=b or isnull(item))/(a=b or isnotnull(item)) case.
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sf = dynamic_cast<SimpleFilter*>(pt->right()->data());
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// swap the lhs and rhs operands of the OR operator.
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if ((lsf->op()->op() == execplan::OP_ISNULL ||
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//idbassert(sf && sf->op()->op() == execplan::OP_EQ);
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lsf->op()->op() == execplan::OP_ISNOTNULL) &&
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if (!sf || sf->op()->op() != execplan::OP_EQ)
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rsf->op()->op() == execplan::OP_EQ)
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return;
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{
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ParseTree* temp = pt->left();
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// set NULLMATCH for both operand. It's really a setting for the join.
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pt->left(pt->right());
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// should only set NULLMATCH when the subtype is NOT_IN. for some IN subquery
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pt->right(temp);
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// with aggregation column, MySQL inefficiently convert to:
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}
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// (cache=item or item is null) and item is not null, which is equivalent to
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// cache = item. Do not set NULLMATCH for this case.
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// Because we don't know IN or NOTIN yet, set candidate bit and switch to NULLMATCH
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// later in handleNot function.
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if (sf->lhs()->joinInfo() & JOIN_CORRELATED)
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sf->lhs()->joinInfo(sf->lhs()->joinInfo() | JOIN_NULLMATCH_CANDIDATE);
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if (sf->rhs()->joinInfo() & JOIN_CORRELATED)
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sf->rhs()->joinInfo(sf->rhs()->joinInfo() | JOIN_NULLMATCH_CANDIDATE);
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pt = pt->right();
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gwip->ptWorkStack.pop();
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gwip->ptWorkStack.push(pt);
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}
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}
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}
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}
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else if (cond->functype() == Item_func::EQ_FUNC)
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else if (cond->functype() == Item_func::EQ_FUNC)
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49
mysql-test/columnstore/basic/r/mcol-4642.result
Normal file
49
mysql-test/columnstore/basic/r/mcol-4642.result
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@ -0,0 +1,49 @@
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#
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# MCOL-4642 NOT IN subquery containing an isnull in the OR predicate crashes server
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#
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DROP DATABASE IF EXISTS mcol4642;
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CREATE DATABASE mcol4642;
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USE mcol4642;
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CREATE TABLE cs1 (a int);
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INSERT INTO cs1 VALUES (1), (2), (3), (4), (null);
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CREATE TABLE cs2 (b int, c int);
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INSERT INTO cs2 VALUES (1, 100), (1, 101), (2, 200),(3, 300), (3, 301), (3, 302), (null, null);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is not null OR b is null);
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a
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is null OR b is not null);
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a
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is not null OR b is null);
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a
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1
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2
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is null OR b is not null);
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a
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1
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b=123 OR b is null);
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a
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is null OR b=123);
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a
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b=123 OR b is null);
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a
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is null OR b=123);
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a
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b=123 OR b is not null);
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a
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4
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is not null OR b=123);
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a
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4
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b=123 OR b is not null);
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a
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1
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2
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is not null OR b=123);
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a
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1
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DROP DATABASE mcol4642;
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35
mysql-test/columnstore/basic/t/mcol-4642.test
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35
mysql-test/columnstore/basic/t/mcol-4642.test
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@ -0,0 +1,35 @@
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--source ../include/have_columnstore.inc
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--source ctype_cmp_combinations.inc
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--echo #
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--echo # MCOL-4642 NOT IN subquery containing an isnull in the OR predicate crashes server
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--echo #
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--disable_warnings
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DROP DATABASE IF EXISTS mcol4642;
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--enable_warnings
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CREATE DATABASE mcol4642;
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USE mcol4642;
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CREATE TABLE cs1 (a int);
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INSERT INTO cs1 VALUES (1), (2), (3), (4), (null);
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CREATE TABLE cs2 (b int, c int);
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INSERT INTO cs2 VALUES (1, 100), (1, 101), (2, 200),(3, 300), (3, 301), (3, 302), (null, null);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is not null OR b is null);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is null OR b is not null);
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is not null OR b is null);
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is null OR b is not null);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b=123 OR b is null);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is null OR b=123);
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b=123 OR b is null);
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is null OR b=123);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b=123 OR b is not null);
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SELECT * FROM cs1 WHERE a NOT IN (SELECT b FROM cs2 WHERE b is not null OR b=123);
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b=123 OR b is not null);
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SELECT * FROM cs1 WHERE a IN (SELECT b FROM cs2 WHERE b is not null OR b=123);
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DROP DATABASE mcol4642;
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