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[CP] reorder the order of complex filters

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This commit is contained in:
obdev
2024-02-21 09:19:05 +00:00
committed by ob-robot
parent 0c3b7d08c4
commit fea19bc54e
31 changed files with 335 additions and 21 deletions
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22
src/sql/optimizer/ob_log_set.cpp
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@ -868,3 +868,25 @@ int ObLogSet::is_my_fixed_expr(const ObRawExpr *expr, bool &is_fixed)
}
return ret;
}
int ObLogSet::get_card_without_filter(double &card)
{
int ret = OB_SUCCESS;
card = 0.0;
for (int64_t i = 0; OB_SUCC(ret) && i < get_num_of_child(); ++i) {
const ObLogicalOperator *child = get_child(i);
if (ObSelectStmt::UNION == get_set_op() && !is_set_distinct()) {
ObSelectStmt::SetOperator set_type = is_recursive_union() ? ObSelectStmt::RECURSIVE : ObSelectStmt::UNION;
if (0 == i) {
card = child->get_card();
} else {
card = ObOptSelectivity::get_set_stmt_output_count(card, child->get_card(), set_type);
}
} else if (0 == i) {
card = child_ndv_.at(i);
} else {
card = ObOptSelectivity::get_set_stmt_output_count(card, child_ndv_.at(i), get_set_op());
}
}
return ret;
}