Fix dblink bugs
This commit is contained in:
xianyu-w
@ -6840,77 +6840,18 @@ int ObRawExprUtils::create_real_cast_expr(ObRawExprFactory &expr_factory,
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{
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int ret = OB_SUCCESS;
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ObConstRawExpr *dst_expr = NULL;
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ParseNode parse_node;
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memset(&parse_node, 0, sizeof(ParseNode));
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ObObj val;
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if (OB_ISNULL(src_expr) || OB_ISNULL(session_info)) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("invalid args", KP(src_expr), KP(session_info));
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} else {
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if (OB_FAIL(expr_factory.create_raw_expr(T_FUN_SYS_CAST, func_expr))) {
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LOG_WARN("create cast expr failed", K(ret));
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} else if (OB_FAIL(expr_factory.create_raw_expr(T_INT, dst_expr))) {
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LOG_WARN("create dest type expr failed", K(ret));
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} else if (OB_FAIL(create_type_expr(expr_factory, dst_expr, dst_type))) {
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LOG_WARN("create type expr failed", K(ret));
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} else if (OB_FAIL(func_expr->add_param_expr(src_expr))) {
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LOG_WARN("add real param expr failed", K(ret));
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} else {
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ObString func_name = ObString::make_string(N_CAST);
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parse_node.int16_values_[OB_NODE_CAST_TYPE_IDX] = static_cast<int16_t>(dst_type.get_type());
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parse_node.int16_values_[OB_NODE_CAST_COLL_IDX] = static_cast<int16_t>(
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dst_type.get_collation_type());
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if (ob_is_string_or_lob_type(dst_type.get_type())) {
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parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX] = dst_type.get_length();
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if (lib::is_oracle_mode()) {
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dst_expr->set_length_semantics(dst_type.get_length_semantics());
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}
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} else if (ob_is_rowid_tc(dst_type.get_type())) {
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int32_t urowid_len = dst_type.get_length();
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if (urowid_len <= -1) {
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urowid_len = 4000;
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}
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parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX] = 4000;
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} else if (ObIntervalYMType == dst_type.get_type()) {
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// TODO: @shaoge 针对ObIntervalYMType和ObIntervalDSType，parse_node的设置需要写case验证
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if (dst_type.get_scale() == -1) {
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// scale=-1 is invalid, update to default value
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ObCompatibilityMode compatibility_mode = get_compatibility_mode();
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] =
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ObAccuracy::DDL_DEFAULT_ACCURACY2[compatibility_mode]
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[ObIntervalYMType]
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.get_scale();
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} else {
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] =
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dst_type.get_scale(); // year
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}
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} else if (ObIntervalDSType == dst_type.get_type()) {
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ObCompatibilityMode compatibility_mode = get_compatibility_mode();
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parse_node.int16_values_[OB_NODE_CAST_N_PREC_IDX] = (dst_type.get_scale() / 10); // day
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if (dst_type.get_scale() == -1) {
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// scale=-1 is invalid, update to default value
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] = 0;
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} else {
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] = (dst_type.get_scale() % 10);// second
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}
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} else if ((ObTimestampNanoType == dst_type.get_type() ||
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ObTimestampTZType == dst_type.get_type() ||
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ObTimestampLTZType == dst_type.get_type()) &&
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dst_type.get_scale() == -1) {
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// scale=-1 is invalid, update to default value
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ObCompatibilityMode compatibility_mode = get_compatibility_mode();
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parse_node.int16_values_[OB_NODE_CAST_N_PREC_IDX] = dst_type.get_precision();
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] =
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ObAccuracy::DDL_DEFAULT_ACCURACY2[compatibility_mode]
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[dst_type.get_type()]
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.get_scale();
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} else {
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parse_node.int16_values_[OB_NODE_CAST_N_PREC_IDX] = dst_type.get_precision();
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] = dst_type.get_scale();
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}
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val.set_int(parse_node.value_);
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dst_expr->set_value(val);
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dst_expr->set_param(val);
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func_expr->set_func_name(func_name);
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if (src_expr->is_for_generated_column()) {
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func_expr->set_for_generated_column();
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@ -6925,6 +6866,80 @@ int ObRawExprUtils::create_real_cast_expr(ObRawExprFactory &expr_factory,
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return ret;
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}
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int ObRawExprUtils::create_type_expr(ObRawExprFactory &expr_factory,
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ObConstRawExpr *&type_expr,
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const ObExprResType &dst_type,
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bool avoid_zero_len)
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{
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int ret = OB_SUCCESS;
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ObConstRawExpr *dst_expr = NULL;
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ParseNode parse_node;
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memset(&parse_node, 0, sizeof(ParseNode));
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ObObj val;
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if (OB_FAIL(expr_factory.create_raw_expr(T_INT, dst_expr))) {
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LOG_WARN("create dest type expr failed", K(ret));
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} else {
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parse_node.int16_values_[OB_NODE_CAST_TYPE_IDX] = static_cast<int16_t>(dst_type.get_type());
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parse_node.int16_values_[OB_NODE_CAST_COLL_IDX] = static_cast<int16_t>(
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dst_type.get_collation_type());
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if (ob_is_string_or_lob_type(dst_type.get_type())) {
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parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX] = (avoid_zero_len && dst_type.get_length() == 0) ?
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1 : dst_type.get_length();
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if (lib::is_oracle_mode()) {
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dst_expr->set_length_semantics(dst_type.get_length_semantics());
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}
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} else if (ob_is_rowid_tc(dst_type.get_type())) {
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int32_t urowid_len = dst_type.get_length();
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if (urowid_len <= -1) {
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urowid_len = 4000;
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}
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parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX] = 4000;
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} else if (ObIntervalYMType == dst_type.get_type()) {
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// TODO: @shaoge 针对ObIntervalYMType和ObIntervalDSType，parse_node的设置需要写case验证
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if (dst_type.get_scale() == -1) {
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// scale=-1 is invalid, update to default value
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ObCompatibilityMode compatibility_mode = get_compatibility_mode();
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] =
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ObAccuracy::DDL_DEFAULT_ACCURACY2[compatibility_mode]
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[ObIntervalYMType]
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.get_scale();
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} else {
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] =
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dst_type.get_scale(); // year
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}
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} else if (ObIntervalDSType == dst_type.get_type()) {
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ObCompatibilityMode compatibility_mode = get_compatibility_mode();
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parse_node.int16_values_[OB_NODE_CAST_N_PREC_IDX] = (dst_type.get_scale() / 10); // day
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if (dst_type.get_scale() == -1) {
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// scale=-1 is invalid, update to default value
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] = 0;
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} else {
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] = (dst_type.get_scale() % 10);// second
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}
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} else if ((ObTimestampNanoType == dst_type.get_type() ||
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ObTimestampTZType == dst_type.get_type() ||
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ObTimestampLTZType == dst_type.get_type()) &&
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dst_type.get_scale() == -1) {
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// scale=-1 is invalid, update to default value
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ObCompatibilityMode compatibility_mode = get_compatibility_mode();
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parse_node.int16_values_[OB_NODE_CAST_N_PREC_IDX] = dst_type.get_precision();
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] =
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ObAccuracy::DDL_DEFAULT_ACCURACY2[compatibility_mode]
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[dst_type.get_type()]
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.get_scale();
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} else {
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parse_node.int16_values_[OB_NODE_CAST_N_PREC_IDX] = dst_type.get_precision();
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parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX] = dst_type.get_scale();
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}
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val.set_int(parse_node.value_);
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dst_expr->set_value(val);
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dst_expr->set_param(val);
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type_expr = dst_expr;
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}
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return ret;
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}
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int ObRawExprUtils::build_add_expr(ObRawExprFactory &expr_factory,
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ObRawExpr *param_expr1,
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ObRawExpr *param_expr2,
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