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b8558167
T
TDengine
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体验新版 GitCode,发现更多精彩内容 >>
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b8558167
编写于
2月 28, 2023
作者:
X
Xiaoyu Wang
提交者:
GitHub
2月 28, 2023
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差异文件
Merge pull request #20206 from taosdata/fix/main_wxy
fix: a plan error of set operator subquery
上级
60f24a5c
ca624678
变更
1
显示空白变更内容
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Showing
1 changed file
with
74 addition
and
5 deletion
+74
-5
source/libs/parser/src/parCalcConst.c
source/libs/parser/src/parCalcConst.c
+74
-5
未找到文件。
source/libs/parser/src/parCalcConst.c
浏览文件 @
b8558167
...
...
@@ -320,6 +320,79 @@ static int32_t calcConstInsert(SCalcConstContext* pCxt, SInsertStmt* pInsert) {
return
code
;
}
static
SNodeList
*
getChildProjection
(
SNode
*
pStmt
)
{
switch
(
nodeType
(
pStmt
))
{
case
QUERY_NODE_SELECT_STMT
:
return
((
SSelectStmt
*
)
pStmt
)
->
pProjectionList
;
case
QUERY_NODE_SET_OPERATOR
:
return
((
SSetOperator
*
)
pStmt
)
->
pProjectionList
;
default:
break
;
}
return
NULL
;
}
static
void
eraseSetOpChildProjection
(
SSetOperator
*
pSetOp
,
int32_t
index
)
{
SNodeList
*
pLeftProjs
=
getChildProjection
(
pSetOp
->
pLeft
);
nodesListErase
(
pLeftProjs
,
nodesListGetCell
(
pLeftProjs
,
index
));
SNodeList
*
pRightProjs
=
getChildProjection
(
pSetOp
->
pRight
);
nodesListErase
(
pRightProjs
,
nodesListGetCell
(
pRightProjs
,
index
));
}
typedef
struct
SNotRefByOrderByCxt
{
SColumnNode
*
pCol
;
bool
hasThisCol
;
}
SNotRefByOrderByCxt
;
static
EDealRes
notRefByOrderByImpl
(
SNode
*
pNode
,
void
*
pContext
)
{
if
(
QUERY_NODE_COLUMN
==
nodeType
(
pNode
))
{
SNotRefByOrderByCxt
*
pCxt
=
(
SNotRefByOrderByCxt
*
)
pContext
;
if
(
nodesEqualNode
((
SNode
*
)
pCxt
->
pCol
,
pNode
))
{
pCxt
->
hasThisCol
=
true
;
return
DEAL_RES_END
;
}
}
return
DEAL_RES_CONTINUE
;
}
static
bool
notRefByOrderBy
(
SColumnNode
*
pCol
,
SNodeList
*
pOrderByList
)
{
SNotRefByOrderByCxt
cxt
=
{.
pCol
=
pCol
,
.
hasThisCol
=
false
};
nodesWalkExprs
(
pOrderByList
,
notRefByOrderByImpl
,
&
cxt
);
return
!
cxt
.
hasThisCol
;
}
static
int32_t
calcConstSetOpProjections
(
SCalcConstContext
*
pCxt
,
SSetOperator
*
pSetOp
,
bool
subquery
)
{
int32_t
index
=
0
;
SNode
*
pProj
=
NULL
;
WHERE_EACH
(
pProj
,
pSetOp
->
pProjectionList
)
{
if
(
subquery
&&
notRefByOrderBy
((
SColumnNode
*
)
pProj
,
pSetOp
->
pOrderByList
)
&&
isUselessCol
((
SExprNode
*
)
pProj
))
{
ERASE_NODE
(
pSetOp
->
pProjectionList
);
eraseSetOpChildProjection
(
pSetOp
,
index
);
continue
;
}
++
index
;
WHERE_NEXT
;
}
if
(
0
==
LIST_LENGTH
(
pSetOp
->
pProjectionList
))
{
return
nodesListStrictAppend
(
pSetOp
->
pProjectionList
,
createConstantValue
());
}
return
TSDB_CODE_SUCCESS
;
}
static
int32_t
calcConstSetOperator
(
SCalcConstContext
*
pCxt
,
SSetOperator
*
pSetOp
,
bool
subquery
)
{
int32_t
code
=
calcConstSetOpProjections
(
pCxt
,
pSetOp
,
subquery
);
if
(
TSDB_CODE_SUCCESS
==
code
)
{
code
=
calcConstQuery
(
pCxt
,
pSetOp
->
pLeft
,
false
);
}
if
(
TSDB_CODE_SUCCESS
==
code
)
{
code
=
calcConstQuery
(
pCxt
,
pSetOp
->
pRight
,
false
);
}
if
(
TSDB_CODE_SUCCESS
==
code
)
{
code
=
calcConstList
(
pSetOp
->
pOrderByList
);
}
return
code
;
}
static
int32_t
calcConstQuery
(
SCalcConstContext
*
pCxt
,
SNode
*
pStmt
,
bool
subquery
)
{
int32_t
code
=
TSDB_CODE_SUCCESS
;
switch
(
nodeType
(
pStmt
))
{
...
...
@@ -330,11 +403,7 @@ static int32_t calcConstQuery(SCalcConstContext* pCxt, SNode* pStmt, bool subque
code
=
calcConstQuery
(
pCxt
,
((
SExplainStmt
*
)
pStmt
)
->
pQuery
,
subquery
);
break
;
case
QUERY_NODE_SET_OPERATOR
:
{
SSetOperator
*
pSetOp
=
(
SSetOperator
*
)
pStmt
;
code
=
calcConstQuery
(
pCxt
,
pSetOp
->
pLeft
,
false
);
if
(
TSDB_CODE_SUCCESS
==
code
)
{
code
=
calcConstQuery
(
pCxt
,
pSetOp
->
pRight
,
false
);
}
code
=
calcConstSetOperator
(
pCxt
,
(
SSetOperator
*
)
pStmt
,
subquery
);
break
;
}
case
QUERY_NODE_DELETE_STMT
:
...
...
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