ee7ec10b11
This patch adds the parsing for the "CREATE MATERIALIZED VIEW" statement, following Cassandra 3 syntax. For example: CREATE MATERIALIZED VIEW building_by_city AS SELECT * FROM buildings WHERE city IS NOT NULL PRIMARY KEY(city, name); It also adds the "IS NOT NULL" operator needed for this purpose. As in Cassandra, "IS NOT NULL" can only be used for materialized view creation, and not in a normal SELECT. It can only be used with the NULL operand (i.e., "IS NOT 3" will be a syntax error). The current implementation of this statement just does some sanity checking (such as to verify that "city" is a valid column name and that the "building" base table exists), complains that materialized views are not yet supported: SyntaxException: <ErrorMessage code=2000 [Syntax error in CQL query] message="Failed parsing statement: [CREATE MATERIALIZED VIEW building_by_city AS SELECT * FROM buildings WHERE city IS NOT NULL PRIMARY KEY(city, name);] reason: unsupported operation: Materialized views not yet supported"> As mentioned above, the "IS NOT NULL" restriction is not allowed in ordinary selects not creating a materialized views: SELECT * FROM buildings WHERE city IS NOT NULL; InvalidRequest: code=2200 [Invalid query] message="restriction 'city IS NOT null' is only supported in materialized view creation" Signed-off-by: Nadav Har'El <nyh@scylladb.com> Message-Id: <1475742927-30695-1-git-send-email-nyh@scylladb.com>
58 lines
2.3 KiB
C++
58 lines
2.3 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright (C) 2015 ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "operator.hh"
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namespace cql3 {
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const operator_type operator_type::EQ(0, operator_type::EQ, "=");
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const operator_type operator_type::LT(4, operator_type::GT, "<");
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const operator_type operator_type::LTE(3, operator_type::GTE, "<=");
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const operator_type operator_type::GTE(1, operator_type::LTE, ">=");
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const operator_type operator_type::GT(2, operator_type::LT, ">");
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const operator_type operator_type::IN(7, operator_type::IN, "IN");
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const operator_type operator_type::CONTAINS(5, operator_type::CONTAINS, "CONTAINS");
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const operator_type operator_type::CONTAINS_KEY(6, operator_type::CONTAINS_KEY, "CONTAINS_KEY");
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const operator_type operator_type::NEQ(8, operator_type::NEQ, "!=");
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const operator_type operator_type::IS_NOT(9, operator_type::IS_NOT, "IS NOT");
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}
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