ClickHouse/tests/queries/0_stateless/00915_simple_aggregate_function.sql

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-- basic test
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drop table if exists simple;
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create table simple (id UInt64,val SimpleAggregateFunction(sum,Double)) engine=AggregatingMergeTree order by id;
insert into simple select number,number from system.numbers limit 10;
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select * from simple;
select * from simple final;
select toTypeName(val) from simple limit 1;
-- merge
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insert into simple select number,number from system.numbers limit 10;
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select * from simple final;
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optimize table simple final;
select * from simple;
-- complex types
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drop table if exists simple;
create table simple (
id UInt64,
nullable_str SimpleAggregateFunction(anyLast,Nullable(String)),
low_str SimpleAggregateFunction(anyLast,LowCardinality(Nullable(String))),
ip SimpleAggregateFunction(anyLast,IPv4),
status SimpleAggregateFunction(groupBitOr, UInt32),
tup SimpleAggregateFunction(sumMap, Tuple(Array(Int32), Array(Int64)))
) engine=AggregatingMergeTree order by id;
insert into simple values(1,'1','1','1.1.1.1', 1, ([1,2], [1,1]));
insert into simple values(1,null,'2','2.2.2.2', 2, ([1,3], [1,1]));
Fix SimpleAggregateFunction for String longer MAX_SMALL_STRING_SIZE SimpleAggregateFunction do not pass arena to the add_function -> getAddressOfAddFunction(), hence next crash happens: (gdb) bt #0 DB::Arena::alloc (size=64, this=0x0) at ../dbms/src/Common/Arena.h:124 #1 DB::SingleValueDataString::changeImpl (this=0x7f97424a27d8, value=..., arena=0x0) at ../dbms/src/AggregateFunctions/AggregateFunctionMinMaxAny.h:274 #2 0x0000000005ea5319 in DB::AggregateFunctionNullUnary<true>::add (arena=<optimized out>, row_num=<optimized out>, columns=<optimized out>, place=<optimized out>, this=<optimized out>) at ../dbms/src/AggregateFunctions/AggregateFunctionNull.h:43 #3 DB::IAggregateFunctionHelper<DB::AggregateFunctionNullUnary<true> >::addFree (that=<optimized out>, place=<optimized out>, columns=<optimized out>, row_num=<optimized out>, arena=<optimized out>) at ../dbms/src/AggregateFunctions/IAggregateFunction.h:131 #4 0x000000000679772f in DB::AggregatingSortedBlockInputStream::addRow (this=this@entry=0x7f982de19c00, cursor=...) at ../dbms/src/Common/AlignedBuffer.h:31 #5 0x0000000006797faa in DB::AggregatingSortedBlockInputStream::merge (this=this@entry=0x7f982de19c00, merged_columns=..., queue=...) at ../dbms/src/DataStreams/AggregatingSortedBlockInputStream.cpp:140 #6 0x0000000006798979 in DB::AggregatingSortedBlockInputStream::readImpl (this=0x7f982de19c00) at ../dbms/src/DataStreams/AggregatingSortedBlockInputStream.cpp:78 #7 0x000000000622db55 in DB::IBlockInputStream::read (this=0x7f982de19c00) at ../dbms/src/DataStreams/IBlockInputStream.cpp:56 #8 0x0000000006613bee in DB::MergeTreeDataMergerMutator::mergePartsToTemporaryPart (this=this@entry=0x7f97ec65e1a0, future_part=..., merge_entry=..., time_of_merge=<optimized out>, disk_reservation=<optimized out>, deduplicate=<optimized out>) at /usr/include/c++/8/bits/shared_ptr_base.h:1018 #9 0x000000000658f7a4 in DB::StorageReplicatedMergeTree::tryExecuteMerge (this=0x7f97ec65b810, entry=...) at /usr/include/c++/8/bits/unique_ptr.h:342 #10 0x00000000065940ab in DB::StorageReplicatedMergeTree::executeLogEntry (this=0x7f97ec65b810, entry=...) at ../dbms/src/Storages/StorageReplicatedMergeTree.cpp:910 <snip> (gdb) f 1 (gdb) p MAX_SMALL_STRING_SIZE $1 = 48 (gdb) p capacity $2 = 64 (gdb) p value $3 = {data = 0x7f97242fcbd0 "HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH", size = 61} v2: avoid leaking of allocated by Arena memory on the intermediate step Fixes: 8f8d2c048e ("Merge pull request #4629 from bgranvea/simple_aggregate_function")
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-- String longer then MAX_SMALL_STRING_SIZE (actual string length is 100)
insert into simple values(10,'10','10','10.10.10.10', 4, ([2,3], [1,1]));
insert into simple values(10,'2222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222','20','20.20.20.20', 1, ([2, 4], [1,1]));
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select * from simple final;
select toTypeName(nullable_str),toTypeName(low_str),toTypeName(ip),toTypeName(status), toTypeName(tup) from simple limit 1;
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optimize table simple final;
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drop table simple;