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Fix bit agg function add redundant cast

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This commit is contained in:
hezuojiao
2024-03-06 10:15:19 +00:00
committed by ob-robot
parent c27c4648bc
commit 485f7cecfb
2 changed files with 12 additions and 6 deletions
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15
src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp
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@ -1423,6 +1423,7 @@ int ObRawExprDeduceType::visit(ObAggFunRawExpr &expr)
LOG_WARN("failed to check group aggr param", K(ret));
} else {
bool need_add_cast = false;
bool override_calc_meta = true;
switch (expr.get_expr_type()) {
//count_sum是在分布式的count(*)中上层为了避免select a, count(a) from t1这种语句a出现NULL这种非期望值
//而生成的内部表达式
@ -1497,11 +1498,13 @@ int ObRawExprDeduceType::visit(ObAggFunRawExpr &expr)
LOG_WARN("param expr is null", K(expr));
} else {
result_type.set_type(ObUInt64Type);
result_type.set_calc_type(result_type.get_type());
result_type.set_calc_type(ob_is_unsigned_type(child_expr->get_data_type()) ?
ObUInt64Type : ObIntType);
override_calc_meta = false;
result_type.set_accuracy(ObAccuracy::MAX_ACCURACY2[0/*is_oracle*/][ObUInt64Type]);
expr.set_result_type(result_type);
ObObjTypeClass from_tc = child_expr->get_type_class();
need_add_cast = (ObUIntTC != from_tc && ObIntTC != from_tc);
need_add_cast = (ObUIntTC != from_tc && ObIntTC != from_tc && ObBitTC != from_tc);
}
break;
}
@ -1927,8 +1930,11 @@ int ObRawExprDeduceType::visit(ObAggFunRawExpr &expr)
}
LOG_DEBUG("aggregate function deduced result type", K(result_type), K(need_add_cast), K(expr));
if (OB_SUCC(ret) && need_add_cast) {
result_type.set_calc_type(result_type.get_type());
result_type.set_calc_accuracy(result_type.get_accuracy());
if (override_calc_meta) {
result_type.set_calc_type(result_type.get_type());
result_type.set_calc_accuracy(result_type.get_accuracy());
result_type.set_calc_meta(result_type.get_obj_meta());
}
if (T_FUN_AVG == expr.get_expr_type() && -2 != scale_increment_recover) {
result_type.set_calc_scale(scale_increment_recover);
}
@ -3500,7 +3506,6 @@ int ObRawExprDeduceType::add_implicit_cast(ObAggFunRawExpr &parent,
{
int ret = OB_SUCCESS;
ObExprResType res_type = parent.get_result_type();
res_type.set_calc_meta(res_type.get_obj_meta());
ObIArray<ObRawExpr*> &real_param_exprs = parent.get_real_param_exprs_for_update();
for (int64_t i = 0; OB_SUCC(ret) && i < real_param_exprs.count(); ++i) {
ObRawExpr *&child_ptr = real_param_exprs.at(i);