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[mysql][window function]: fix 4 order by bugs in ob-mysql window function.

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This commit is contained in:
Monk-Liu
2022-03-28 16:34:46 +08:00
committed by LINxiansheng
parent 5e0b6e4c8c
commit 403f881b89
10 changed files with 461 additions and 289 deletions
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44
src/sql/resolver/expr/ob_raw_expr_resolver_impl.cpp
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@ -3876,7 +3876,17 @@ int ObRawExprResolverImpl::not_row_check(const ObRawExpr* expr)
return ret;
}
int ObRawExprResolverImpl::param_not_row_check(const ObRawExpr* expr)
int ObRawExprResolverImpl::not_int_check(const ObRawExpr *expr)
{
int ret = OB_SUCCESS;
if (share::is_mysql_mode() && NULL != expr && T_INT == expr->get_expr_type()) {
ret = OB_ERR_WINDOW_ILLEGAL_ORDER_BY;
LOG_WARN("int not expected in window function's orderby ", K(ret));
}
return ret;
}
int ObRawExprResolverImpl::param_not_row_check(const ObRawExpr *expr)
{
int ret = OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && NULL != expr && i < expr->get_param_count(); i++) {
@ -4299,6 +4309,10 @@ int ObRawExprResolverImpl::process_sort_list_node(const ParseNode* node, ObIArra
LOG_WARN("fail to recursive resolve order item expr", K(ret));
} else {
OZ(not_row_check(order_item.expr_));
// check order_item.expr_:
// 1. shouldn't be int,
// 2. if is number, ignore the order_item.(all group are in same group);
OZ(not_int_check(order_item.expr_));
OZ(order_items.push_back(order_item));
}
}
@ -4343,6 +4357,21 @@ int ObRawExprResolverImpl::process_frame_node(const ParseNode* node, ObFrame& fr
LOG_WARN("process lower bound node failed", K(ret));
}
}
/* check the frame
* In mysql, ROWS can't coexists with (INTERVAL expr unit).
* mysql: select c1, sum(c1) over(order by c1 rows interval 5 day preceding) from t1;
* mysql will raise error: ERROR 3596 (HY000): INTERVAL can only be used with RANGE frames.
*/
if (OB_SUCC(ret) && share::is_mysql_mode() && frame.win_type_ == WINDOW_ROWS) {
if (frame.get_upper().type_ == BOUND_INTERVAL && !frame.get_upper().is_nmb_literal_) {
// upper is a (INTERVAL expr unit)
ret = OB_ERR_WINDOW_ROWS_INTERVAL_USE;
LOG_WARN("INTERVAL can only be used with RANGE frames.", K(ret));
} else if (frame.get_lower().type_ == BOUND_INTERVAL && !frame.get_lower().is_nmb_literal_) {
ret = OB_ERR_WINDOW_ROWS_INTERVAL_USE;
LOG_WARN("INTERVAL can only be used with RANGE frames.", K(ret));
}
}
}
}
@ -4524,9 +4553,16 @@ int ObRawExprResolverImpl::check_and_canonicalize_window_expr(ObRawExpr* expr)
}
}
if (OB_SUCC(ret) && share::is_mysql_mode() && w_expr->has_frame_orig() &&
WINDOW_RANGE == win_type && 0 == order_items.count()) {
ret = OB_ERR_MISS_ORDER_BY_EXPR;
if (OB_SUCC(ret) && share::is_mysql_mode() && w_expr->has_frame_orig() && WINDOW_RANGE == win_type &&
0 == order_items.count() &&
(w_expr->get_upper().type_ == BOUND_INTERVAL || w_expr->get_lower().type_ == BOUND_INTERVAL)) {
/* if preceding or following has a specific value (not the default unbounded)
* in mysql:
* @OK: select c1, sum(c1) over(range between current row and current row) from t1;
* @OK: select c1, sum(c1) over(range unbounded preceding) from t1;
* @error: select c1, sum(c1) over(range 1 preceding) from t1; --error 3587
*/
ret = OB_ERR_WINDOW_RANGE_FRAME_ORDER_TYPE;
LOG_WARN("missing ORDER BY expression in the window specification", K(ret));
}