adb758dcac
remove json functions code remove string functions code remove math functions code move MatchPredicate to olap since it is only used in storage predicate process remove some code in tuple, Tuple structure should be removed in the future. remove many code in collection value structure, they are useless
62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
// 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// This file is copied from
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// https://github.com/apache/impala/blob/branch-2.9.0/be/src/exprs/math-functions.h
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// and modified by Doris
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#pragma once
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#include <stdint.h>
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#include "util/string_parser.hpp"
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namespace doris {
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class MathFunctions {
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public:
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static double my_double_round(double value, int64_t dec, bool dec_unsigned, bool truncate);
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// Converts src_num in decimal to dest_base,
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// and fills expr_val.string_val with the result.
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static doris_udf::StringVal decimal_to_base(doris_udf::FunctionContext* ctx, int64_t src_num,
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int8_t dest_base);
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// Converts src_num representing a number in src_base but encoded in decimal
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// into its actual decimal number.
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// For example, if src_num is 21 and src_base is 5,
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// then this function sets *result to 2*5^1 + 1*5^0 = 11.
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// Returns false if overflow occurred, true upon success.
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static bool decimal_in_base_to_decimal(int64_t src_num, int8_t src_base, int64_t* result);
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// Helper function used in Conv to implement behavior consistent
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// with MySQL and Hive in case of numeric overflow during Conv.
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// Inspects parse_res, and in case of overflow sets num to MAXINT64 if dest_base
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// is positive, otherwise to -1.
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// Returns true if no parse_res == PARSE_SUCCESS || parse_res == PARSE_OVERFLOW.
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// Returns false otherwise, indicating some other error condition.
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static bool handle_parse_result(int8_t dest_base, int64_t* num,
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StringParser::ParseResult parse_res);
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static const int32_t MIN_BASE = 2;
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static const int32_t MAX_BASE = 36;
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private:
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static const char* _s_alphanumeric_chars;
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};
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} // namespace doris
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