e1e63f8354
1. Supports for persisting collected statistics to a pre-built OLAP table named `column_statistics`. 2. Use a much simpler mechanism to collect statistics: all the gauges are collected in single one SQL for each partition and then the whole column, which defined in class `AnalysisJob` 3. Implement a cache to manage the statistics records in FE TODO: 1. Use opentelemetry to monitor the execution time of each job 2. Format the internal analysis SQL 3. split SQL to promise the in expr's child count not exceeds the FE limits of generated SQL for deleting expired records 4. Implements show statements
79 lines
2.3 KiB
Thrift
79 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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}
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