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[CP] remove const params in window function

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This commit is contained in:
obdev
2022-06-02 10:10:55 +08:00
committed by wangzelin.wzl
parent 75ca779e47
commit bc26b2f163
4 changed files with 54 additions and 1 deletions
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16
src/sql/optimizer/ob_select_log_plan.cpp
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@ -1719,6 +1719,20 @@ int ObSelectLogPlan::decide_sort_keys_for_runion(
return ret;
}
int ObSelectLogPlan::remove_const_in_window_functions(ObIArray<ObWinFunRawExpr *> &win_funcs)
{
int ret = OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < win_funcs.count(); ++i) {
if (OB_ISNULL(win_funcs.at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (OB_FAIL(win_funcs.at(i)->remove_const_params())) {
LOG_WARN("failed to remove const params in window function", K(ret));
}
}
return ret;
}
int ObSelectLogPlan::candi_allocate_window_function()
{
int ret = OB_SUCCESS;
@ -1731,6 +1745,8 @@ int ObSelectLogPlan::candi_allocate_window_function()
LOG_WARN("failed to append exprs", K(ret));
} else if (OB_FAIL(candi_allocate_subplan_filter_for_exprs(candi_subquery_exprs))) {
LOG_WARN("failed to do allocate subplan filter", K(ret));
} else if (OB_FAIL(remove_const_in_window_functions(stmt->get_window_func_exprs()))) {
LOG_WARN("failed to remove const in window functions", K(ret));
} else if (stmt->get_window_func_count() > 0) {
ObSEArray<CandidatePlan, 8> winfunc_plans;
CandidatePlan winfunc_plan;