hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

[FEAT MERGE]4_1_sql_feature

Browse Source 
Co-authored-by: leslieyuchen <leslieyuchen@gmail.com>
Co-authored-by: Charles0429 <xiezhenjiang@gmail.com>
Co-authored-by: raywill <hustos@gmail.com>
This commit is contained in:
obdev
2023-01-28 16:01:26 +08:00
committed by ob-robot
parent 3080f2b66f
commit 2d19a9d8f5
846 changed files with 161957 additions and 116661 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
src/sql/rewrite/ob_transform_simplify_winfunc.cpp
View File

@ -37,6 +37,8 @@ int ObTransformSimplifyWinfunc::transform_one_stmt(common::ObIArray<ObParentDMLS
LOG_WARN("failed to simplify win exprs", K(ret));
} else {
trans_happened = is_removed || is_simplified;
OPT_TRACE("remove stmt win func:", is_removed);
OPT_TRACE("simplify win exprs:", is_simplified);
}
if (OB_SUCC(ret) && trans_happened) {
if (OB_FAIL(add_transform_hint(*stmt))) {
@ -141,7 +143,10 @@ int ObTransformSimplifyWinfunc::check_aggr_win_can_be_removed(const ObDMLStmt *s
case T_WIN_FUN_ROW_NUMBER: // return 1
case T_WIN_FUN_RANK: // return 1
case T_WIN_FUN_DENSE_RANK: // return 1
case T_WIN_FUN_PERCENT_RANK: { // return 0
case T_WIN_FUN_PERCENT_RANK: // return 0
case T_FUN_SYS_BIT_AND: // return expr or UINT64MAX
case T_FUN_SYS_BIT_OR: // return expr or 0
case T_FUN_SYS_BIT_XOR: { // return expr or 0
can_remove = true;
break;
}
@ -436,6 +441,14 @@ int ObTransformSimplifyWinfunc::transform_aggr_win_to_common_expr(ObSelectStmt *
}
break;
}
case T_FUN_SYS_BIT_AND:
case T_FUN_SYS_BIT_OR:
case T_FUN_SYS_BIT_XOR: {
if (OB_FAIL(ObTransformUtils::transform_bit_aggr_to_common_expr(*select_stmt, aggr, ctx_, param_expr))) {
LOG_WARN("transform bit aggr to common expr failed", KR(ret), K(aggr), K(func_type), K(*select_stmt));
}
break;
}
default: {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected func", K(ret), K(*expr));
@ -616,7 +629,7 @@ int ObTransformSimplifyWinfunc::do_remove_stmt_win(ObSelectStmt *select_stmt,
LOG_WARN("failed to remove window func expr", K(ret));
}
}
if (OB_SUCC(ret) && OB_FAIL(select_stmt->replace_inner_stmt_expr(exprs, new_exprs))) {
if (OB_SUCC(ret) && OB_FAIL(select_stmt->replace_relation_exprs(exprs, new_exprs))) {
LOG_WARN("select_stmt replace inner stmt expr failed", K(ret), K(select_stmt));
}
}
@ -660,25 +673,25 @@ int ObTransformSimplifyWinfunc::simplify_win_expr(ObWinFunRawExpr &win_expr,
ObSEArray<ObRawExpr *, 4> added_expr;
trans_happened = false;
for (int64_t i = 0; OB_SUCC(ret) && i < partition_exprs.count(); ++i) {
ObRawExpr *part_expr = partition_exprs.at(i);
if (part_expr->is_const_expr()) {
} else if (ObRawExprUtils::find_expr(added_expr, part_expr)) {
} else if (OB_FAIL(new_partition_exprs.push_back(part_expr))) {
LOG_WARN("failed to push back expr", K(ret));
} else if (OB_FAIL(added_expr.push_back(part_expr))) {
LOG_WARN("failed to push back expr", K(ret));
}
ObRawExpr *part_expr = partition_exprs.at(i);
if (part_expr->is_const_expr()) {
} else if (ObRawExprUtils::find_expr(added_expr, part_expr)) {
} else if (OB_FAIL(new_partition_exprs.push_back(part_expr))) {
LOG_WARN("failed to push back expr", K(ret));
} else if (OB_FAIL(added_expr.push_back(part_expr))) {
LOG_WARN("failed to push back expr", K(ret));
}
for (int64_t i = 0; OB_SUCC(ret) && i < order_items.count(); ++i) {
ObRawExpr *order_expr = order_items.at(i).expr_;
if (order_expr->is_const_expr()) {
} else if (ObRawExprUtils::find_expr(added_expr, order_expr)) {
} else if (OB_FAIL(new_order_items.push_back(order_items.at(i)))) {
LOG_WARN("failed to push back expr", K(ret));
} else if (OB_FAIL(added_expr.push_back(order_expr))) {
LOG_WARN("failed to push back expr", K(ret));
}
}
for (int64_t i = 0; OB_SUCC(ret) && i < order_items.count(); ++i) {
ObRawExpr *order_expr = order_items.at(i).expr_;
if (order_expr->is_const_expr()) {
} else if (ObRawExprUtils::find_expr(added_expr, order_expr)) {
} else if (OB_FAIL(new_order_items.push_back(order_items.at(i)))) {
LOG_WARN("failed to push back expr", K(ret));
} else if (OB_FAIL(added_expr.push_back(order_expr))) {
LOG_WARN("failed to push back expr", K(ret));
}
}
if (OB_SUCC(ret)
&& new_order_items.count() == 0 && order_items.count() > 0) {
// for computing range frame