8e2146f48c
`Export` syntax provides asynchronous export function, but `Export` does not achieve vectorization. `Outfile` syntax provides synchronous export function`. So we can reimplement the export syntax with oufile syntax.
81 lines
2.3 KiB
Thrift
81 lines
2.3 KiB
Thrift
// 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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namespace cpp doris
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namespace java org.apache.doris.thrift
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include "Types.thrift"
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// Serialized, self-contained version of a RowBatch (in be/src/runtime/row-batch.h).
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struct TRowBatch {
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// total number of rows contained in this batch
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1: required i32 num_rows
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// row composition
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2: required list<Types.TTupleId> row_tuples
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// There are a total of num_rows * num_tuples_per_row offsets
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// pointing into tuple_data.
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// An offset of -1 records a NULL.
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3: list<i32> tuple_offsets
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// binary tuple data
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// TODO: figure out how we can avoid copying the data during TRowBatch construction
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4: string tuple_data
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// Indicates whether tuple_data is snappy-compressed
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5: bool is_compressed
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// backend num, source
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6: i32 be_number
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// packet seq
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7: i64 packet_seq
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}
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// this is a union over all possible return types
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struct TCell {
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// TODO: use <type>_val instead of camelcase
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1: optional bool boolVal
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2: optional i32 intVal
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3: optional i64 longVal
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4: optional double doubleVal
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5: optional string stringVal
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// add type: date datetime
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}
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struct TResultRow {
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1: list<TCell> colVals
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}
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struct TRow {
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1: optional list<TCell> column_value
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}
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// Serialized, self-contained version of a RowBatch (in be/src/runtime/row-batch.h).
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struct TResultBatch {
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// mysql result row
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1: required list<binary> rows
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// Indicates whether tuple_data is snappy-compressed
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2: required bool is_compressed
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// packet seq used to check if there has packet lost
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3: required i64 packet_seq
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4: optional map<string,string> attached_infos
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}
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