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adjust subquery_exprs in formalize_stmt

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This commit is contained in:
jingtaoye35
2024-03-15 03:15:37 +00:00
committed by ob-robot
parent 4d516e64c7
commit 0487d20e6d
16 changed files with 185 additions and 322 deletions
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29
src/sql/rewrite/ob_transform_expr_pullup.cpp
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@ -546,29 +546,6 @@ int ObTransformExprPullup::search_expr_cannot_pullup(ObRawExpr *expr,
return ret;
}
int ObTransformExprPullup::adjust_subquery(ObRawExpr *expr,
ObSelectStmt &child,
ObSelectStmt &parent)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
} else if (expr->is_query_ref_expr()
&& !ObRawExprUtils::find_expr(parent.get_subquery_exprs(), expr)) {
ObQueryRefRawExpr &query_ref = static_cast<ObQueryRefRawExpr &>(*expr);
if (OB_FAIL(parent.add_subquery_ref(&query_ref))) {
LOG_WARN("fail to add subquery ref", K(ret));
}
}
for (int64_t i = 0; OB_SUCC(ret) && i < expr->get_param_count(); i++) {
if (OB_FAIL(SMART_CALL(adjust_subquery(expr->get_param_expr(i), child, parent)))) {
LOG_WARN("fail to preorder search expr", K(ret));
}
}
return ret;
}
int ObTransformExprPullup::rewrite_decision_by_hint(ObSelectStmt &parent,
ObSelectStmt &child,
bool stmt_may_reduce_row_count,
@ -793,8 +770,6 @@ int ObTransformExprPullup::pullup_expr_from_view(TableItem *view,
expr_params,
new_child_project_columns))) {
LOG_WARN("failed to create select item", K(ret));
} else if (OB_FAIL(child.adjust_subquery_list())) {
LOG_WARN("fail to adjust subquery list", K(ret));
}
}
@ -809,8 +784,6 @@ int ObTransformExprPullup::pullup_expr_from_view(TableItem *view,
for (int64_t i = 0; OB_SUCC(ret) && i < select_exprs_can_pullup.count(); i++) {
if (OB_FAIL(select_exprs_can_pullup.at(i)->formalize(ctx_->session_info_))) {
LOG_WARN("fail to formalize expr", K(ret));
} else if (OB_FAIL(adjust_subquery(select_exprs_can_pullup.at(i), child, parent))) {
LOG_WARN("fail to add subquery ref", K(ret));
}
}
}
@ -822,6 +795,8 @@ int ObTransformExprPullup::pullup_expr_from_view(TableItem *view,
LOG_WARN("fail to replace inner stmt expr", K(ret));
} else if (OB_FAIL(parent.formalize_stmt(ctx_->session_info_))) {
LOG_WARN("fail to formalize stmt", K(ret));
} else if (OB_FAIL(child.formalize_stmt(ctx_->session_info_))) {
LOG_WARN("fail to formalize stmt", K(ret));
}
}
}