128 lines
6.2 KiB
C++
128 lines
6.2 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_RESV
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#include "sql/resolver/dml/ob_sequence_namespace_checker.h"
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#include "lib/charset/ob_charset.h"
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#include "sql/resolver/dml/ob_dml_stmt.h"
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#include "sql/resolver/dml/ob_select_stmt.h"
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#include "sql/resolver/ob_resolver_define.h"
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#include "sql/resolver/ob_resolver_utils.h"
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#include "sql/resolver/ob_schema_checker.h"
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#include "sql/resolver/ob_stmt_resolver.h"
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namespace oceanbase
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{
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using namespace common;
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namespace sql
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{
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ObSequenceNamespaceChecker::ObSequenceNamespaceChecker(ObResolverParams &resolver_params)
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: schema_checker_(resolver_params.schema_checker_),
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session_info_(resolver_params.session_info_)
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{}
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ObSequenceNamespaceChecker::ObSequenceNamespaceChecker(const ObSchemaChecker *schema_checker,
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const ObSQLSessionInfo *session_info)
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: schema_checker_(schema_checker), session_info_(session_info)
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{}
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int ObSequenceNamespaceChecker::check_sequence_namespace(const ObQualifiedName &q_name,
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ObSynonymChecker &syn_checker,
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uint64_t &sequence_id)
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{
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return check_sequence_namespace(q_name, syn_checker,
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session_info_,
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schema_checker_,
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sequence_id);
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}
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int ObSequenceNamespaceChecker::check_sequence_namespace(const ObQualifiedName &q_name,
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ObSynonymChecker &syn_checker,
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const ObSQLSessionInfo *session_info,
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const ObSchemaChecker *schema_checker,
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uint64_t &sequence_id)
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{
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int ret = OB_NOT_IMPLEMENT;
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if (OB_ISNULL(schema_checker) || OB_ISNULL(session_info)) {
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ret = OB_NOT_INIT;
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LOG_WARN("schema checker is null", K(ret));
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} else if (!is_curr_or_next_val(q_name.col_name_)) {
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ret = OB_ERR_BAD_FIELD_ERROR;
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} else if (q_name.database_name_.empty() && session_info->get_database_name().empty()) {
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ret = OB_ERR_NO_DB_SELECTED;
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LOG_WARN("No database selected", K(q_name), K(ret));
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} else {
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const ObString &database_name = q_name.database_name_.empty() ?
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session_info->get_database_name() : q_name.database_name_;
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const ObString &sequence_name = q_name.tbl_name_;
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const ObString &sequence_expr = q_name.col_name_;
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uint64_t tenant_id = session_info->get_effective_tenant_id();
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uint64_t database_id = OB_INVALID_ID;
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bool exist = false;
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if (OB_FAIL(schema_checker->get_database_id(tenant_id, database_name, database_id))) {
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LOG_WARN("failed to get database id", K(ret), K(tenant_id), K(database_name));
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} else if (OB_FAIL(check_sequence_with_synonym_recursively(tenant_id, database_id, sequence_name,
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syn_checker, schema_checker, exist, sequence_id))) {
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LOG_WARN("fail recursively check sequence with name", K(q_name), K(database_name), K(ret));
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} else if (!exist) {
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ret = OB_ERR_BAD_FIELD_ERROR;
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} else if (0 != sequence_expr.case_compare("NEXTVAL") &&
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0 != sequence_expr.case_compare("CURRVAL")) {
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ret = OB_ERR_BAD_FIELD_ERROR;
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}
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}
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return ret;
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}
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int ObSequenceNamespaceChecker::check_sequence_with_synonym_recursively(const uint64_t tenant_id,
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const uint64_t database_id,
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const common::ObString &sequence_name,
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ObSynonymChecker &syn_checker,
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const ObSchemaChecker *schema_checker,
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bool &exists,
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uint64_t &sequence_id)
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{
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int ret = OB_SUCCESS;
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bool exist_with_synonym = false;
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ObString object_seq_name;
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uint64_t object_db_id;
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uint64_t synonym_id;
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if (OB_FAIL(schema_checker->check_sequence_exist_with_name(tenant_id,
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database_id,
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sequence_name,
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exists,
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sequence_id))) {
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LOG_WARN("failed to check sequence with name", K(ret), K(sequence_name), K(database_id));
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} else if (!exists) { // check synonym
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if (OB_FAIL(schema_checker->get_synonym_schema(tenant_id, database_id, sequence_name, object_db_id,
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synonym_id, object_seq_name, exist_with_synonym))) {
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LOG_WARN("get synonym failed", K(ret), K(tenant_id), K(database_id), K(sequence_name));
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} else if (exist_with_synonym) {
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syn_checker.set_synonym(true);
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if (OB_FAIL(syn_checker.add_synonym_id(synonym_id, database_id))) {
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LOG_WARN("failed to add synonym id", K(ret));
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} else {
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if (OB_FAIL(check_sequence_with_synonym_recursively(tenant_id, object_db_id, object_seq_name, syn_checker,
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schema_checker, exists, sequence_id))) {
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LOG_WARN("failed to check sequence with synonym recursively", K(ret));
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}
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}
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} else {
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exists = false;
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LOG_INFO("sequence object does not exist", K(sequence_name), K(tenant_id), K(database_id));
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}
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}
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return ret;
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}
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} // namespace sql
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} // namespace oceanbase
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