ClickHouse/dbms/src/Storages/MergeTree/checkDataPart.h
Nikita Vasilev a1b0dede07 Data Skipping Indices (#4143)
* made index parser

* added index parsing

* some fixes

* added index interface and factory

* fixed compilation

* ptrs

* added indexParts

* indextypes

* index condition

* IndexCondition

* added indexes in selectexecutor

* fix

* changed comment

* fix

* added granularity

* comments

* fix

* fix

* added writing indexes

* removed indexpart class

* fix

* added setSkipIndexes

* add rw for MergeTreeIndexes

* fixes

* upd error

* fix

* fix

* reading

* test index

* fixed nullptr error

* fixed

* fix

* unique names

* asts -> exprlist

* minmax index

* fix

* fixed select

* fixed merging

* fixed mutation

* working minmax

* removed test index

* fixed style

* added indexes to checkDataPart

* added tests for minmax index

* fixed constructor

* fix style

* fixed includes

* fixed setSkipIndexes

* added indexes meta to zookeeper

* added parsing

* removed throw

* alter cmds parse

* fix

* added alter

* fix

* alters fix

* fix alters

* fix "after"

* fixed alter

* alter fix + test

* fixes

* upd setSkipIndexes

* fixed alter bug with drop all indices

* fix metadata editing

* new test and repl fix

* rm test files

* fixed repl alter

* fix

* fix

* indices

* MTReadStream

* upd test for bug

* fix

* added useful parsers and ast classes

* fix

* fix comments

* replaced columns

* fix

* fixed parsing

* fixed printing

* fix err

* basic IndicesDescription

* go to IndicesDescr

* moved indices

* go to indicesDescr

* fix test minmax_index*

* fixed MT alter

* fixed bug with replMT indices storing in zk

* rename

* refactoring

* docs ru

* docs ru

* docs en

* refactor

* rename tests

* fix docs

* refactoring

* fix

* fix

* fix

* fixed style

* unique idx

* unique

* fix

* better minmax calculation

* upd

* added getBlock

* unique_condition

* added termForAST

* unique

* fixed not

* uniqueCondition::mayBeTrueOnGranule

* fix

* fixed bug with double column

* is always true

* fix

* key set

* spaces

* test

* tests

* fix

* unique

* fix

* fix

* fixed bug with duplicate column

* removed unused data

* fix

* fixes

* __bitSwapLastTwo

* fix
2019-02-05 17:50:25 +03:00

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C++

#pragma once
#include <Storages/MergeTree/MergeTreeData.h>
namespace DB
{
/** Completely checks the part data
* - Calculates checksums and compares them with checksums.txt.
* - For arrays and strings, checks the correspondence of the size and amount of data.
* - Checks the correctness of marks.
* Throws an exception if the part is corrupted or if the check fails (TODO: you can try to separate these cases).
*/
MergeTreeData::DataPart::Checksums checkDataPart(
const String & path,
size_t index_granularity,
bool require_checksums,
const DataTypes & primary_key_data_types, /// Check the primary key. If it is not necessary, pass an empty array.
const MergeTreeIndices & indices = {}, /// Check skip indices
std::function<bool()> is_cancelled = []{ return false; });
}