thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-15 10:52:30 +00:00
Code Issues Packages Projects Releases Wiki Activity
88,166 Commits 9,328 Branches 1,783 Tags 2.1 GiB
04fdd75c56
Commit Graph

2650 Commits

Author SHA1 Message Date
Dmitry Novik
8f935a72d6
Merge pull request #33230 from CurtizJ/read_in_order_max_rows_to_read 
Proper handle of 'max_rows_to_read' in case of reading in order of sorting key
 2022-03-29 15:16:34 +02:00
Antonio Andelic
9990abb76a Use compile-time check for Exception messages, fix wrong messages 2022-03-29 13:16:11 +00:00
avogar
97f5033ea9 Fix tests 2022-03-29 13:07:37 +00:00
mergify[bot]
343588de2c
Merge branch 'master' into improve-schema-inference 2022-03-29 13:06:00 +00:00
Anton Popov
9610139477
Merge pull request #35629 from CurtizJ/dynamic-columns-5 
Support schema inference for type `Object` in format `JSONEachRow`
 2022-03-29 14:17:09 +02:00
Alexey Milovidov
5e262fba85
Merge pull request #35204 from azat/build-gcc 
Add build with GCC
 2022-03-29 04:55:15 +03:00
Yakov Olkhovskiy
615efa1381 aliases processing fixed 2022-03-28 19:15:53 -04:00
Azat Khuzhin
bf4df5c6bb Fix SIGSEGV for build under gcc-11 (due to auto deduction) 
During building with gcc-11 you will got SIGSEGV for building
InterpretersMySQLDDLQuery (and some others), and it is due to endless
recursion:

    (gdb) bt 5
    0  0x00000000010978f2 in structural_comptypes (t1=0x7fde028c7dc8, t2=0x7fde028d1e70, strict=0) at ../../src/gcc/cp/typeck.c:1274
    1  0x00000000011c3f9d in comp_template_parms (parms1=<optimized out>, parms2=<optimized out>) at ../../src/gcc/cp/pt.c:3369
    2  0x0000000001097bd9 in structural_comptypes (t1=0x7fde028c7dc8, t2=0x7fde028d1e70, strict=<optimized out>) at ../../src/gcc/cp/typeck.c:1361
    3  0x00000000011c3f9d in comp_template_parms (parms1=<optimized out>, parms2=<optimized out>) at ../../src/gcc/cp/pt.c:3369
    4  0x0000000001097bd9 in structural_comptypes (t1=0x7fde028c7dc8, t2=0x7fde028d1e70, strict=<optimized out>) at ../../src/gcc/cp/typeck.c:1361
    (gdb) bt -X
    1397454 0x0000000001097bd9 in structural_comptypes (t1=0x7fde028d1540, t2=0x7fde028d27e0, strict=<optimized out>) at ../../src/gcc/cp/typeck.c:1361
    1397455 0x0000000000f2d8b5 in cp_tree_equal (t1=<optimized out>, t2=<optimized out>) at ../../src/gcc/cp/tree.c:4144
    1397456 0x00000000010909cb in template_args_equal (ot=0x7fde028cf578, nt=0x7fde028cfc58, partial_order=<optimized out>) at ../../src/gcc/cp/pt.c:9256
    1397457 0x0000000001090422 in template_args_equal (partial_order=false, nt=0x7fde028cfc58, ot=0x7fde028cf578) at ../../src/gcc/cp/pt.c:9295
    1397458 comp_template_args (oldargs=0x7fde028cf550, newargs=0x7fde028cfc30, oldarg_ptr=0x0, newarg_ptr=0x0, partial_order=false) at ../../src/gcc/cp/pt.c:9285
    1397459 0x00000000010a08f4 in spec_hasher::equal (e1=0x7fde028c95d0, e2=0x7ffd1194e8c0) at ../../src/gcc/cp/pt.c:1726
    1397460 0x0000000001085965 in hash_table<spec_hasher, false, xcallocator>::find_with_hash (this=0x7fde36b7f450, comparable=@0x7ffd1194e8b8: 0x7ffd1194e8c0, hash=<optimized out>) at ../../src/gcc/hash-table.h:936
    1397461 0x0000000001079698 in lookup_template_class_1 (d1=<optimized out>, arglist=0x7fde028cfc30, in_decl=0x0, context=<optimized out>, entering_scope=<optimized out>, complain=3) at ../../src/gcc/cp/pt.c:9896
    1397462 0x000000000109f8ef in lookup_template_class (complain=3, entering_scope=1, context=0x7fde27558e40, in_decl=0x0, arglist=0x7fde028cfc08, d1=0x7fde269bcd20) at ../../src/gcc/cp/pt.c:10251
    1397463 tsubst_aggr_type (t=0x7fde269bcd20, args=<optimized out>, complain=3, in_decl=0x0, entering_scope=1) at ../../src/gcc/cp/pt.c:13646
    1397464 0x000000000108f797 in tsubst (t=0x7fde269bcdc8, args=0x7fde028cf7a8, complain=3, in_decl=<optimized out>) at ../../src/gcc/cp/pt.c:16108
    1397465 0x0000000000e61bf2 in rewrite_template_parm (level=1, complain=3, tsubst_args=0x7fde028cf7a8, index=5, olddecl=0x7fde269b5600) at ../../src/gcc/cp/pt.c:28556
    1397466 rewrite_tparm_list(tree_node*, unsigned int, unsigned int, tree_node*, unsigned int, int) [clone .constprop.0] (oldelt=0x7fde269bd190, index=5, targs=0x7fde028cf7a8, targs_index=4, complain=3, level=1) at ../../src/gcc/cp/pt.c:28640
    1397467 0x00000000009f3748 in build_deduction_guide (type=type@entry=0x7fde26e13dc8, ctor=0x7fde269ac300, outer_args=outer_args@entry=0x0, complain=complain@entry=3) at ../../src/gcc/cp/pt.c:28769
    1397468 0x00000000009f444f in ctor_deduction_guides_for (complain=3, tmpl=<optimized out>) at ../../src/gcc/cp/cp-tree.h:842
    1397469 deduction_guides_for (tmpl=<optimized out>, any_dguides_p=<optimized out>, complain=3) at ../../src/gcc/cp/pt.c:29282
    1397470 0x00000000008507a8 in do_class_deduction (complain=3, flags=1, init=<optimized out>, tmpl=0x7fde26e0f980, ptype=0x7fde028c7b28) at ../../src/gcc/cp/pt.c:29402
    1397471 do_auto_deduction (type=0x7fde028c7b28, init=<optimized out>, auto_node=<optimized out>, complain=3, context=<optimized out>, outer_targs=<optimized out>, flags=1) at ../../src/gcc/cp/pt.c:29572
    1397472 0x00000000007c9569 in finish_compound_literal (type=<optimized out>, compound_literal=0x7fde028c95b8, complain=3, fcl_context=fcl_functional) at ../../src/gcc/cp/semantics.c:3060
    1397473 0x0000000001123a79 in cp_parser_functional_cast (parser=0x7fde27558da8, type=0x7fde028c7b28) at ../../src/gcc/cp/parser.c:30670
    1397474 0x0000000000fd7873 in cp_parser_postfix_expression (parser=0x7fde27558da8, address_p=<optimized out>, cast_p=<optimized out>, member_access_only_p=<optimized out>, decltype_p=false, pidk_return=0x0) at ../../src/gcc/cp/parser.c:7437
    1397475 0x0000000000fd4ddf in cp_parser_binary_expression (parser=0x7fde27558da8, cast_p=<optimized out>, no_toplevel_fold_p=false, decltype_p=<optimized out>, prec=PREC_NOT_OPERATOR, pidk=<optimized out>) at ../../src/gcc/cp/parser.c:9842
    1397476 0x0000000000fd4595 in cp_parser_assignment_expression (parser=0x7fde27558da8, pidk=<optimized out>, cast_p=<optimized out>, decltype_p=<optimized out>) at ../../src/gcc/cp/parser.c:10146
    1397477 0x0000000000fd3b90 in cp_parser_constant_expression (parser=0x7fde27558da8, allow_non_constant_p=2, non_constant_p=0x7ffd1194f1d7, strict_p=<optimized out>) at ../../src/gcc/cp/parser.c:10449
    1397478 0x0000000000fcfdd5 in cp_parser_initializer_clause (non_constant_p=<optimized out>, parser=0x7fde27558da8) at ../../src/gcc/cp/parser.c:24253
    1397479 cp_parser_initializer (parser=0x7fde27558da8, is_direct_init=<optimized out>, non_constant_p=<optimized out>, subexpression_p=<optimized out>) at ../../src/gcc/cp/parser.c:24193
    1397480 0x000000000062e5d8 in cp_parser_decomposition_declaration (init_loc=0x7ffd1194f1d8, maybe_range_for_decl=0x7ffd1194f498, decl_specifiers=0x7ffd1194f1f0, parser=0x7fde27558da8) at ../../src/gcc/cp/parser.c:14734
    1397481 cp_parser_simple_declaration (parser=0x7fde27558da8, function_definition_allowed_p=<optimized out>, maybe_range_for_decl=0x7ffd1194f498) at ../../src/gcc/cp/parser.c:14393
    1397482 0x000000000109b870 in cp_parser_init_statement (parser=0x7fde27558da8, decl=0x7ffd1194f498) at ../../src/gcc/cp/parser.c:13420
    1397483 0x00000000010996f0 in cp_parser_for (unroll=0, ivdep=false, parser=0x7fde27558da8) at ../../src/gcc/cp/parser.c:12708
    1397484 cp_parser_iteration_statement (parser=0x7fde27558da8, if_p=0x0, ivdep=<optimized out>, unroll=<optimized out>) at ../../src/gcc/cp/parser.c:13343
    1397485 0x0000000000fe5c46 in cp_parser_statement (parser=0x7fde27558da8, in_statement_expr=0x0, in_compound=<optimized out>, if_p=0x0, chain=0x0, loc_after_labels=0x0) at ../../src/gcc/cp/parser.c:11718
    1397486 0x0000000000fe15ac in cp_parser_statement_seq_opt (in_statement_expr=<optimized out>, parser=<optimized out>) at ../../src/gcc/cp/parser.c:12201
    1397487 cp_parser_compound_statement (parser=0x7fde27558da8, in_statement_expr=0x0, bcs_flags=<optimized out>, function_body=<optimized out>) at ../../src/gcc/cp/parser.c:12150

Interesting frame is 1397471, from which we can extract location:

    (gdb) p line_table[0].info_ordinary.maps[line_table[0].info_ordinary.cache]
    $54 = {
      <line_map> = {
        start_location = 1396581280
      },
      members of line_map_ordinary:
      reason = LC_RENAME,
      sysp = 0 '\000',
      m_column_and_range_bits = 8,
      m_range_bits = 0,
      to_file = 0x3eb4bb0 "/ch/src/Interpreters/MySQL/InterpretersMySQLDDLQuery.cpp",
      to_line = 46,
      included_from = 0
    }

By replicating SOURCE_LINE() macro from gcc-11 (libcpp/include/line-map.h):

    /* Converts a map and a location_t to source line.  */
    inline linenum_type
    SOURCE_LINE (const line_map_ordinary *ord_map, location_t loc)
    {
      return ((loc - ord_map->start_location)
          >> ord_map->m_column_and_range_bits) + ord_map->to_line;
    }

We got line 154:

    (gdb) p ((input_location-1396581280) >> 8) + 46
    $61 = 154

And this is:

    auto [column_name_and_type, declare_column_ast] = std::tuple{columns_name_and_type.begin(), columns_definition->children.begin()};

After rewriting it, everything works correctly.

Also here is a reproducer for gcc-11 (and no failures for gcc-12, but
gcc-12 has other issues, like [1] and one more for hash table):

    # cat /tmp/test.cpp
    #include <tuple>

    auto multi()
    {
            return std::tuple{1, 1};
    }
    double foo()
    {
            auto [a, b] = multi();
            return a - b;
    }

    # g++-11 -std=gnu++20 -c -o /dev/null -isystem /ch/contrib/libcxx/include -nostdinc++ /tmp/test.cpp
    g++-11: internal compiler error: Segmentation fault signal terminated program cc1plus
    Please submit a full bug report,
    with preprocessed source if appropriate.
    See <file:///usr/share/doc/gcc-11/README.Bugs> for instructions.
    # g++-12 -std=gnu++20 -c -o /dev/null -isystem /ch/contrib/libcxx/include -nostdinc++ /tmp/test.cpp

  [1]: https://reviews.llvm.org/D122598

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-03-28 22:21:45 +03:00
Anton Popov
d677635cd8
Merge pull request #35592 from CurtizJ/dynamic-columns-4 
Add parallel parsing and schema inference for format `JSONAsObject`
 2022-03-28 19:29:55 +02:00
mergify[bot]
f09ebea2d8
Merge branch 'master' into read_in_order_max_rows_to_read 2022-03-28 13:30:34 +00:00
Yakov Olkhovskiy
5a4694f340 major refactoring, simplified, optimized, bugs fixed 2022-03-27 14:32:09 -04:00
Anton Popov
67195bfdd5 support schema inference for type Object in format JSONEachRow 2022-03-25 21:51:53 +00:00
Vladimir C
cfb12aff6f
Merge pull request #35460 from helifu/master 2022-03-25 15:55:17 +01:00
avogar
6fb3c3be04 Fix comments and build 2022-03-25 12:02:21 +00:00
Kruglov Pavel
d45143ffe0
Merge branch 'master' into improve-schema-inference 2022-03-25 12:05:40 +01:00
Vladimir C
ae92963b15
Fix build error in Formats/ISchemaReader.cpp 2022-03-25 11:30:25 +01:00
Yakov Olkhovskiy
adefcfd299
Merge branch 'master' into interpolate-feature 2022-03-24 15:33:09 -04:00
Yakov Olkhovskiy
83f406b722 optimization, INTERPOLATE without expr. list, any column is allowed except WITH FILL 2022-03-24 15:29:29 -04:00
Kruglov Pavel
287e1a6efc
Update src/Processors/Formats/ISchemaReader.cpp 
Co-authored-by: Vladimir C <vdimir@clickhouse.com>
 2022-03-24 19:16:52 +01:00
Kruglov Pavel
6a9df9d471
Update src/Processors/Formats/ISchemaReader.cpp 
Co-authored-by: Vladimir C <vdimir@clickhouse.com>
 2022-03-24 19:16:47 +01:00
Kruglov Pavel
3b801a4093
Update src/Processors/Formats/ISchemaReader.cpp 
Co-authored-by: Vladimir C <vdimir@clickhouse.com>
 2022-03-24 19:16:41 +01:00
Anton Popov
78100abc5f add parallel parsing and schema inference for type Object 2022-03-24 17:51:35 +00:00
avogar
557edbd172 Add some improvements and fixes in schema inference 2022-03-24 12:54:12 +00:00
vdimir
f106e2dd49
fix style in QueryPlan.cpp 2022-03-24 11:53:58 +00:00
vdimir
d16ae46589
remove description for ReadFromMergeTree from pipeline, adjust tests for plan 2022-03-24 11:31:52 +00:00
helifu
8a5bd2defa
Add explicit table info to the scan node of query plan and pipeline 
:) explain plan select * from table1 t1 left join table2 t2 on t1.name = t2.name;
┌─explain──────────────────────────────────────────────────────────────────────────────────────┐
│ Expression ((Projection + Before ORDER BY))                                                  │
│   Join (JOIN)                                                                                │
│     Expression (Before JOIN)                                                                 │
│       SettingQuotaAndLimits (Set limits and quota after reading from storage)                │
│         ReadFromMergeTree (default.table1)                                                   │
│     Expression ((Joined actions + (Rename joined columns + (Projection + Before ORDER BY)))) │
│       SettingQuotaAndLimits (Set limits and quota after reading from storage)                │
│         ReadFromMergeTree (default.table2)                                                   │
└──────────────────────────────────────────────────────────────────────────────────────────────┘

:) explain pipeline select * from table1 t1 left join table2 t2 on t1.name = t2.name;
┌─explain──────────────────────────────────────────┐
│ (Expression)                                     │
│ ExpressionTransform × 24                         │
│   (Join)                                         │
│   JoiningTransform × 24 2 → 1                    │
│     Resize 1 → 24                                │
│       FillingRightJoinSide                       │
│         Resize 24 → 1                            │
│           (Expression)                           │
│           ExpressionTransform × 24               │
│             (SettingQuotaAndLimits)              │
│               (ReadFromMergeTree default.table1) │
│               MergeTreeThread × 24 0 → 1         │
│           (Expression)                           │
│           ExpressionTransform × 24               │
│             (SettingQuotaAndLimits)              │
│               (ReadFromMergeTree default.table2) │
│               MergeTreeThread × 24 0 → 1         │
└──────────────────────────────────────────────────┘
 2022-03-24 10:49:12 +00:00
mergify[bot]
bf90edc362
Merge branch 'master' into case-insensitive-column-matching 2022-03-24 08:00:42 +00:00
Kruglov Pavel
826b933b08
Merge pull request #35332 from Avogar/fix-tskv-schema-inference 
Fix schema inference for TSKV format while using small max_read_buffer_size
 2022-03-23 18:37:07 +01:00
Antonio Andelic
052057f2ef Address PR comments 2022-03-23 15:42:46 +00:00
Anton Popov
f693eba568 fix tests with approx rows 2022-03-22 14:30:40 +00:00
Antonio Andelic
6b6190554b Fix conversion of arrow to CH column with hint header 2022-03-22 11:15:48 +00:00
Antonio Andelic
0c23cd7b94 Add support for case insensitive column matching in arrow 2022-03-22 10:55:10 +00:00
Antonio Andelic
ca7844e338 Fix tests 2022-03-22 09:27:20 +00:00
Antonio Andelic
6cebb6bc88 Merge branch 'master' into case-insensitive-column-matching 2022-03-22 07:36:35 +00:00
mergify[bot]
e11ef05c2b
Merge branch 'master' into issue_33147 2022-03-21 13:40:17 +00:00
Antonio Andelic
cb3703b46e Style fix 2022-03-21 12:54:56 +00:00
Antonio Andelic
0457a3998a remove old test 2022-03-21 11:58:55 +00:00
Kruglov Pavel
1645b7083f
Update src/Processors/Formats/Impl/TSKVRowInputFormat.cpp 
Co-authored-by: Antonio Andelic <antonio2368@users.noreply.github.com>
 2022-03-21 12:44:12 +01:00
Kruglov Pavel
0b381ebd26
Update src/Processors/Formats/Impl/TSKVRowInputFormat.cpp 
Co-authored-by: Antonio Andelic <antonio2368@users.noreply.github.com>
 2022-03-21 12:44:06 +01:00
Kruglov Pavel
f67b8c0bad
Update src/Processors/Formats/Impl/TSKVRowInputFormat.cpp 
Co-authored-by: Antonio Andelic <antonio2368@users.noreply.github.com>
 2022-03-21 12:44:00 +01:00
Kruglov Pavel
ed7b40253c
Merge pull request #35039 from zzsmdfj/issue/#34890_fix_input_format_null_as_default_bug 
to #34890_fix_input_format_null_as_default_bug
 2022-03-21 12:42:17 +01:00
Antonio Andelic
0c74fa2c19 Remove unecessary code 2022-03-21 08:38:15 +00:00
tavplubix
716c6f0ffa
Merge pull request #35406 from Avogar/fix-parquet 
Fix working with unneeded columns in Arrow/Parquet/ORC formats
 2022-03-21 11:36:54 +03:00
Antonio Andelic
29d2bf7d1a Merge branch 'master' into case-insensitive-column-matching 2022-03-21 08:17:27 +00:00
Antonio Andelic
d73c906e68 Format code 2022-03-21 07:50:17 +00:00
Antonio Andelic
f75b054255 Allow case insensitive column matching 2022-03-21 07:47:37 +00:00
Yakov Olkhovskiy
481ee8aad5
Update FillingTransform.cpp 
use range-based for loop
 2022-03-19 12:17:56 -04:00
Yakov Olkhovskiy
eb7474e73a
Merge branch 'master' into interpolate-feature 2022-03-19 03:11:14 -04:00
Nikita Taranov
7d61fa5f05 impl 2022-03-18 22:58:35 +00:00
Yakov Olkhovskiy
a8e1671a76 type match check for INTERPOLATE expressions added, bugfix, printout fixed 2022-03-18 16:44:27 -04:00
avogar
58f2aca120 Fix tests 2022-03-18 19:04:16 +00:00
avogar
cffa2096de Fix working with unneeded columns in Arrow/Parquet/ORC formats 2022-03-18 13:07:54 +00:00
Kruglov Pavel
aa3c05e9d4
Merge pull request #35152 from rschu1ze/protobuf-batch-write 
ProtobufList
 2022-03-18 13:24:34 +01:00
mergify[bot]
28734562bb
Merge branch 'master' into issue/#34890_fix_input_format_null_as_default_bug 2022-03-17 13:24:34 +00:00
Antonio Andelic
607f785e48 Revert "Merge pull request #35145 from bigo-sg/lower-column-name" 
This reverts commit ebf72bf61d, reversing
changes made to f1b812bdc1.
 2022-03-17 12:31:43 +00:00
Yakov Olkhovskiy
00700988ee style fix 2022-03-17 02:31:01 -04:00
Yakov Olkhovskiy
7bb66e6702 added INTERPOLATE extension for ORDER BY WITH FILL 2022-03-17 01:51:35 -04:00
Anton Popov
2ced42ed41 add experimental settings for Object type 2022-03-16 16:51:23 +00:00
Anton Popov
0ba78c3c3a Merge remote-tracking branch 'upstream/master' into HEAD 2022-03-16 15:28:09 +00:00
avogar
f7c5fe14e4 Fix schema inference for TSKV format while using small max_read_buffer_size 2022-03-16 13:53:50 +00:00
Robert Schulze
0d2ece6d91
Merge branch 'ClickHouse:master' into protobuf-batch-write 2022-03-16 09:43:33 +01:00
Robert Schulze
23122cb327
Fix review comments 
ParquetBlockOutputFormat.cpp:
- undo unrelated formatting

ProtobufSerializer.cpp:
- undef debug tracing
- simplify logic in writeRow()

ProtobufSchemas.cpp:
- restore original search in cache by message type
 2022-03-15 11:27:17 +01:00
Maksim Kita
2665724301 Fix clang-tidy warnings in Parsers, Processors, QueryPipeline folders 2022-03-14 18:17:35 +00:00
Anton Popov
36ec379aeb Merge remote-tracking branch 'upstream/master' into HEAD 2022-03-14 16:28:35 +00:00
Antonio Andelic
ebf72bf61d
Merge pull request #35145 from bigo-sg/lower-column-name 
add setting to lower column case when reading parquet/orc file
 2022-03-14 11:25:03 +01:00
Maksim Kita
ad6b3693e1
Merge pull request #35123 from zhanghuajieHIT/fix_build_fail_with_gcc 
fix build fail with gcc
 2022-03-14 10:36:15 +01:00
Kseniia Sumarokova
58a2d2b458
Merge pull request #35118 from zzsmdfj/issue/#31469_MaterializedMysql_mysqlDate2CkDate32 
to #31469_MaterializedMysql_mysqlDate2CkDate32
 2022-03-14 10:32:33 +01:00
Robert Schulze
514d4d2187
Implement ProtobufList - fixes ClickHouse#16436 
Introduce IO format "ProtobufList" with protobuf schema

    // schemafile.proto
    message Envelope {
      message MessageType {
        uint32 colA = 1;
        string colB = 2;
      }
      repeated MessageType mt = 1;
    }

where "Envelope" is a hard-coded/expected top-level message and
"MessageType" is a message with user-provided name containing the table
fields to export/import, e.g.

    SELECT * FROM db1.tab1 FORMAT ProtobufList SETTINGS format_schema =
    'schemafile:MessageType'

As a result, the new format wraps a list of messages (one per row) into
a single, containing message. Compare that to the schema of the existing
IO formats "Protobuf" and "ProtobufSingle":

    message MessageType {
      uint32 colA = 1;
      string colB = 2;
    }

The new format does not save space compared to the existing formats, but
it is conceptually a bit more beautiful and also more convenenient.

Implementation details:

- Created new files ProtobufList(Input|Output)Format which use the
  existing ProtobufSerializer mechanism. The goal was to reuse as much
  code as possible and avoid copypasta.

- I was torn between inheriting from I(Input|Output)Format vs.
  IRow(Input|Output)Format for ProtobufList(Input|Output)Format. The
  former is chunk-based which can be better for performance. Since the
  ProtobufSerializer mechanism is row-based but data is generally passed
  around in chunks, I decided for the latter to leverage the existing
  chunk <--> row mapping code in IRow(InputOutput)Format.

- A new ProtobufSerializer called ProtobufSerializerEnvelope was
  introduced (--> ProtobufSerializer.cpp). It represents the top-level
  message which encloses the list of inner nested messages, i.e. the
  rows.

- With the new format, parsing the schema file and matching the fields in
  the schema file to table column works like for the old formats. The only
  difference is that parsing starts one level below the "Envelope" (-->
  ProtobufSchema.cpp). This is more natural than forcing customers to
  have table columns start with "Envelope".

- Creation of the ProtobufSerializer tree also works like before. What
  is different is that we finally add a ProtobufSerializerEnvelope as
  new root of the tree. It's only purpose is to write/read the top-level
  message for the first/last row to write/read.

Caveats:

- The low-level serialization code in ProtobufWriter uses an internal
  buffer which is flushed to the output file only in endMessage().
  In the existing "Protobuf" format, this happens once per row, in the
  new format this happens only at the end of the serialization
  since row-level messages now call start/endNestedMessage(). As a
  future TODO to, the buffer should be flushed also in
  start/endNestedMessage() to reduce memory consumption.
 2022-03-14 08:04:58 +01:00
Maksim Kita
ce0c8e5597
Update JSONRowOutputFormat.cpp 2022-03-14 00:58:36 +01:00
Robert Schulze
f0ba39b071
Clean up some header includes and make formatting more consistent 2022-03-13 20:24:12 +01:00
zhanghuajie
53a8987b3b fix build fail with gcc --fix warnings without disabling some parameters 2022-03-11 21:59:19 +08:00
shuchaome
7a3623d216 fix bug 2022-03-11 17:26:13 +08:00
Nikolai Kochetov
47f4bd30cd
Merge pull request #35186 from amosbird/fixwithtotalemptychunk 
Fix empty chunk in with total transform
 2022-03-11 10:24:19 +01:00
metahys
ff934cf0c2
Fix unexpected result when use -state type aggregate function in window frame (#34999) 
* Fix unexpected result when use -state type aggregate function in window frame

* fix style

* fix style

* fix test

* fix flaky test

* fix flaky test

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
 2022-03-11 11:54:17 +03:00
shuchaome
46cb4483a6 Optimise by lowering schema on the beginning. Add a functional test. 2022-03-11 14:34:46 +08:00
Amos Bird
a1b61dabfd
Fix empty chunk in with total transform. 2022-03-10 23:27:36 +08:00
mergify[bot]
c326ebd67f
Merge branch 'master' into issue/#34890_fix_input_format_null_as_default_bug 2022-03-09 15:59:04 +00:00
shuchaome
b7cd85df6b remove unused column_names in ORCBlockInputFormat 2022-03-09 18:16:22 +08:00
shuchaome
bb50133424
Apply suggestions from code review 
Co-authored-by: Antonio Andelic <antonio2368@users.noreply.github.com>
 2022-03-09 17:32:27 +08:00
shuchaome
9647818adc add unlikely for performance 2022-03-09 17:02:07 +08:00
shuchaome
8027bb1e32 modify code style 2022-03-09 16:32:18 +08:00
shuchaome
56795b831d add setting to lower column case when reading parquet/orc file 2022-03-09 16:07:02 +08:00
zhanghuajie
11dde7c127 fix build fail with gcc 2022-03-08 22:34:51 +08:00
zzsmdfj
67b9f81104 to #31469_MaterializedMysql_mysqlDate2CkDate32 2022-03-08 18:17:22 +08:00
zzsmdfj
7252c18ff0 to #34890_fix_input_format_null_as_default_bug 2022-03-04 15:04:43 +08:00
Anton Popov
df3b07fe7c Merge remote-tracking branch 'upstream/master' into HEAD 2022-03-03 22:25:28 +00:00
Nikolai Kochetov
32120d5dec
Merge pull request #34993 from ClickHouse/try-fix-delayed-source 
Avoid pushing to port with data inside DelayedSource
 2022-03-03 13:44:45 +01:00
Maksim Kita
b1a956c5f1 clang-tidy check performance-move-const-arg fix 2022-03-02 18:15:27 +00:00
Maksim Kita
1f5837359e clang-tidy check performance-noexcept-move-constructor fix 2022-03-02 18:15:27 +00:00
Nikolai Kochetov
ed8dfc14d4 Avoid pushing to port with data inside DelayedSource 2022-03-02 14:21:58 +01:00
Anton Popov
2758db5341 add more comments 2022-03-01 19:32:55 +03:00
Anton Popov
fcdebea925 Merge remote-tracking branch 'upstream/master' into HEAD 2022-02-25 13:41:30 +03:00
zvonand
90c857c5e3 merge 2022-02-17 18:23:37 +03:00
Kruglov Pavel
5e8b2228e0
Merge pull request #34561 from bigo-sg/arrow_type_timestamp 
Implement transformation between CH DateTime64 and arrow timestamp column
 2022-02-17 16:55:17 +03:00
zvonand
cf244689a2 fixed filling transform 2022-02-16 15:14:25 +03:00
Anton Popov
72e75fdaf5
Merge pull request #34601 from CurtizJ/filtering-by-sparse-columns 
Support filtering by sparse columns without conversion to full
 2022-02-15 23:26:13 +03:00
Anton Popov
7cddae1351 return back result_size_hint 2022-02-15 15:12:25 +03:00
Anton Popov
5c316ffabe support filtering by sparse columns without convertion to full 2022-02-15 14:30:54 +03:00
Kruglov Pavel
cf454a6539
Merge pull request #34532 from CurtizJ/fix-aggregation-in-order-3 
Fix aggregation in order with distributed_aggregation_memory_efficient=0
 2022-02-15 14:26:15 +03:00
zvonand
888542e29b add[interval] no longer oses decimal components 
Not only support for better subsecond logic, but also fewer conversions
-> faster operation
 2022-02-14 02:52:56 +03:00
zvonand
2454f1dd13 Decimal components attempt 2022-02-14 00:04:09 +03:00
taiyang-li
e53719a86b remove comments 2022-02-13 17:13:23 +08:00
taiyang-li
aabf2aac69 finish all tests 2022-02-13 17:06:58 +08:00
taiyang-li
6559941972 support datetime64 when transform ch chunk to arrow table 2022-02-13 14:56:01 +08:00
alexey-milovidov
4a2c69c073
Merge pull request #34067 from Algunenano/mv_fixes 
Fix  `parallel_view_processing=0` and `view_duration_ms` in views log
 2022-02-12 22:36:41 +03:00
Anton Popov
357bdd69c4 fix aggregation in order with distributed_aggregation_memory_efficient=0 2022-02-11 18:09:13 +03:00
Vladimir C
a2b1900333
Merge pull request #34496 from Avogar/jsonl 
Support .jsonl extension for JSONEachRow format
 2022-02-11 15:44:31 +01:00
W
7cb0433fae
Update buildPushingToViewsChain.h 
typo
 2022-02-11 14:34:20 +08:00
avogar
9e58ae7577 Support jsonl extension for JSONEachRow format 2022-02-10 16:00:37 +03:00
Kruglov Pavel
a4f5610764
Merge pull request #34476 from CurtizJ/avoid-settings-copy 
Avoid unnecessary copying of `Settings`
 2022-02-10 14:13:46 +03:00
Anton Popov
298838f891 avoid unnecessary copying of Settings 2022-02-10 12:13:51 +03:00
Anton Popov
18940b8637 Merge remote-tracking branch 'upstream/master' into HEAD 2022-02-09 23:38:38 +03:00
mergify[bot]
d78525bd10
Merge branch 'master' into fix-removing-order-in-CreatingSetsTransform 2022-02-09 13:55:52 +00:00
Azat Khuzhin
4fa2ae76bc Fix memory leak in AggregatingInOrderTransform 
Reproducer:

    # NOTE: we need clickhouse from 33957 since right now LSan is broken due to getauxval().
    $ url=https://s3.amazonaws.com/clickhouse-builds/33957/e04b862673644d313712607a0078f5d1c48b5377/package_asan/clickhouse
    $ wget $url -o clickhouse-asan
    $ chmod +x clickhouse-asan
    $ ./clickhouse-asan server &

    $ ./clickhouse-asan client
    :) create table data (key Int, value String) engine=MergeTree() order by key
    :) insert into data select number%5, toString(number) from numbers(10e6)

    # usually it is enough one query, benchmark is just for stability of the results
    # note, that if the exception was not happen from AggregatingInOrderTransform then add --continue_on_errors and wait
    $ ./clickhouse-asan benchmark --query 'select key, uniqCombined64(value), groupArray(value) from data group by key' --optimize_aggregation_in_order=1 --memory_tracker_fault_probability=0.01, max_untracked_memory='2Mi'

LSan report:

    ==24595==ERROR: LeakSanitizer: detected memory leaks

    Direct leak of 3932160 byte(s) in 6 object(s) allocated from:
        0 0xcadba93 in realloc ()
        1 0xcc108d9 in Allocator<false, false>::realloc() obj-x86_64-linux-gnu/../src/Common/Allocator.h:134:30
        2 0xde19eae in void DB::PODArrayBase<>::realloc<DB::Arena*&>(unsigned long, DB::Arena*&) obj-x86_64-linux-gnu/../src/Common/PODArray.h:161:25
        3 0xde5f039 in void DB::PODArrayBase<>::reserveForNextSize<DB::Arena*&>(DB::Arena*&) obj-x86_64-linux-gnu/../src/Common/PODArray.h
        4 0xde5f039 in void DB::PODArray<>::push_back<>(DB::GroupArrayNodeString*&, DB::Arena*&) obj-x86_64-linux-gnu/../src/Common/PODArray.h:432:19
        5 0xde5f039 in DB::GroupArrayGeneralImpl<>::add() const obj-x86_64-linux-gnu/../src/AggregateFunctions/AggregateFunctionGroupArray.h:465:31
        6 0xde5f039 in DB::IAggregateFunctionHelper<>::addBatchSinglePlaceFromInterval() const obj-x86_64-linux-gnu/../src/AggregateFunctions/IAggregateFunction.h:481:53
        7 0x299df134 in DB::Aggregator::executeOnIntervalWithoutKeyImpl() obj-x86_64-linux-gnu/../src/Interpreters/Aggregator.cpp:869:31
        8 0x2ca75f7d in DB::AggregatingInOrderTransform::consume() obj-x86_64-linux-gnu/../src/Processors/Transforms/AggregatingInOrderTransform.cpp:124:13

    ...

    SUMMARY: AddressSanitizer: 4523184 byte(s) leaked in 12 allocation(s).

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-02-09 09:23:56 +03:00
Maksim Kita
b8e350054c clang-tidy move fix build 2022-02-08 21:21:32 +00:00
Nikolai Kochetov
82a7d70a31
Merge branch 'master' into fix-removing-order-in-CreatingSetsTransform 2022-02-08 19:29:03 +03:00
Nikolai Kochetov
d2d47b9595 Fixing build. 2022-02-08 16:27:33 +00:00
Maksim Kita
4bb69bcb15
Merge pull request #34398 from DevTeamBK/input_format 
Method called on already moved
 2022-02-08 15:20:07 +01:00
Nikolai Kochetov
7e54dafdc1 Fix wrong destruction order in CreatingSetsTransform. 2022-02-08 10:41:07 +00:00
Kruglov Pavel
b4fec2af7c
Merge pull request #34065 from Avogar/msgpack 
Support UUID in MsgPack format
 2022-02-08 11:42:17 +03:00
Rajkumar
6b3adbb0de Method called on already moved 2022-02-07 19:50:34 -08:00
avogar
a4c7ecde87 Make better 2022-02-07 17:51:26 +03:00
avogar
c3d30fd502 Fix comments 2022-02-07 17:11:44 +03:00
Kruglov Pavel
34a17075d3 FIx error messages 2022-02-07 17:11:44 +03:00
avogar
77b42bb9ff Support UUID in MsgPack format 2022-02-07 17:11:44 +03:00
HeenaBansal2009
eeec2478ba Fix clang-tidy issue 2022-02-06 22:36:35 -08:00
Alexey Milovidov
f98010e374 Small improvements 2022-02-06 07:14:01 +03:00
Alexey Milovidov
4a83dbc514 Fix linkage 2022-02-04 00:26:44 +03:00
Alexey Milovidov
c426f11096 Maybe better 2022-02-04 00:20:16 +03:00
Alexey Milovidov
7c12f5f37a Fix terribly low performance of LineAsString format 2022-02-04 00:07:31 +03:00
Anton Popov
9b844c6b42
Merge pull request #32748 from CurtizJ/read-in-order-fixed-prefix 
Support `optimize_read_in_order` if prefix of sorting key is already sorted
 2022-02-03 18:17:08 +03:00
mergify[bot]
150d7ba8b5
Merge branch 'master' into mv_fixes 2022-02-03 00:41:52 +00:00
Azat Khuzhin
1d19851590 Disable data skipping indexes by default for queries with FINAL 
This patch adds use_skip_indexes_if_final setting, that is OFF by
default. Since skipping data for queries with FINAL may produce
incorrect result.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-02-02 13:31:50 +03:00
Anton Popov
836a348a9c Merge remote-tracking branch 'upstream/master' into HEAD 2022-02-01 15:23:07 +03:00
mergify[bot]
4f0e011958
Merge branch 'master' into mv_fixes 2022-01-31 23:53:35 +00:00
Alexey Milovidov
e4e7169277 Remove some strange code 2022-02-01 02:52:36 +03:00
Alexey Milovidov
83136f3515 Allow \r in the middle of the line in format Regexp 2022-02-01 02:49:26 +03:00
Alexey Milovidov
872d0a0fbe Improve performance of format Regexp 2022-02-01 02:07:48 +03:00
alesapin
dd61d1c2de
Merge pull request #34172 from ClickHouse/fix_race_in_some_engines 
Fix benign race condition for storage HDFS, S3, URL
 2022-01-31 22:41:54 +03:00
alesapin
93c0700c4c Fix typo 2022-01-31 16:46:58 +03:00
alesapin
056b9e335f Fix comment 2022-01-31 16:39:42 +03:00
alesapin
31753afb7e Fix cancel logic in parallel parsing 2022-01-31 16:38:15 +03:00
Maksim Kita
5ef83deaa6 Update sort to pdqsort 2022-01-30 19:49:48 +00:00
Anton Popov
78b9f15abb Merge remote-tracking branch 'upstream/master' into HEAD 2022-01-30 03:24:37 +03:00
Anton Popov
b950a12cb3
Merge pull request #34068 from CurtizJ/fix-async-insert-native 
Fix asynchronous inserts with `Native` format
 2022-01-29 01:24:53 +03:00
Azat Khuzhin
1519985c98 Fix possible "Can't attach query to the thread, it is already attached" 
After detachQueryIfNotDetached() had been removed it is not enough to
use attachTo() for ThreadPool (scheduleOrThrowOnError()) since the query
may be already attached, if the thread doing multiple jobs, so
CurrentThread::attachToIfDetached() should be used instead.

This should fix all the places from the failures on CI [1]:

    $ fgrep DB::CurrentThread::attachTo -A1 ~/Downloads/47.txt  | fgrep -v attachTo | cut -d' ' -f5,6 | sort | uniq -c
         92 --
          2 /fasttest-workspace/build/../../ClickHouse/contrib/libcxx/include/deque:1393: DB::ParallelParsingInputFormat::parserThreadFunction(std::__1::shared_ptr<DB::ThreadGroupStatus>,
          4 /fasttest-workspace/build/../../ClickHouse/src/Storages/MergeTree/MergeTreeData.cpp:1595: void
         87 /fasttest-workspace/build/../../ClickHouse/src/Storages/MergeTree/MergeTreeDataSelectExecutor.cpp:993: void

  [1]: https://github.com/ClickHouse/ClickHouse/runs/4954466034?check_suite_focus=true

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-28 16:25:33 +03:00
Azat Khuzhin
b0c862c297 Fix memory accounting for queries that uses < max_untracker_memory 
MemoryTracker starts accounting memory directly only after per-thread
allocation exceeded max_untracker_memory (or memory_profiler_step).

But even memory under this limit should be accounted too, and there is
code to do this in ThreadStatus dtor, however due to
PullingAsyncPipelineExecutor detached the query from thread group that
memory was not accounted.

So remove CurrentThread::detachQueryIfNotDetached() from threads that
uses ThreadFromGlobalPool since it has ThreadStatus, and the query will
be detached using CurrentThread::defaultThreadDeleter.

Note, that before this patch memory accounting works for HTTP queries
due to it had been accounted from ParallelFormattingOutputFormat, but
not for TCP.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-28 16:25:33 +03:00
Anton Popov
6c0959b907 fix asynchronous inserts with Native format 2022-01-28 03:25:15 +03:00
Raúl Marín
5f7ac9fbb1 MV: Limit the chain threads based on parallel_view_processing 2022-01-27 18:13:30 +01:00
Raúl Marín
3df56f46b3 Fix MV view_duration_ms 2022-01-27 18:09:47 +01:00
tavplubix
9e91a9dfd1
Merge pull request #33429 from zzsmdfj/MaterializeMySQL_support_set_and_other_dataType 
MaterializeMySQL support SET YEAR TIME GEOMETRY dataType
 2022-01-26 11:29:46 +03:00
Kruglov Pavel
9f12f4af13
Merge pull request #33302 from Avogar/formats-with-suffixes 
Allow to create new files on insert for File/S3/HDFS engines
 2022-01-25 10:56:15 +03:00
avogar
1f49acc164 Better naming 2022-01-24 16:28:36 +03:00
Anton Popov
6861adadcf
Merge pull request #33637 from azat/fix-optimize_aggregation_in_order 
RFC: Fix "Chunk should have AggregatedChunkInfo in GroupingAggregatedTransform"
 2022-01-22 19:05:39 +03:00
Anton Popov
e8ce091e68 Merge remote-tracking branch 'upstream/master' into HEAD 2022-01-21 20:11:18 +03:00
zzsmdfj
411f43ec4d to MaterializeMySQL_support_set_and_other_dataType 2022-01-21 12:24:12 +08:00
avogar
67e396f8f4 Fix schema inference for JSONEachRow and JSONCompactEachRow 2022-01-20 16:31:24 +03:00
mergify[bot]
cbb87e762c
Merge branch 'master' into formats-with-suffixes 2022-01-19 17:21:18 +00:00
Amos Bird
f65d77cc74
Hotfix of missing header 2022-01-19 14:11:42 +08:00
mergify[bot]
b318f9b5db
Merge branch 'master' into formats-with-suffixes 2022-01-18 12:17:07 +00:00
Anton Popov
a25f2518e3
Merge pull request #33141 from 1over/feature_default_keyword 
Add support of DEFAULT keyword for INSERT
 2022-01-18 02:04:37 +03:00
Kruglov Pavel
a7df9cd53a
Merge branch 'master' into formats-with-suffixes 2022-01-14 21:03:49 +03:00
avogar
253035a5df Fix 2022-01-14 19:17:06 +03:00
Kruglov Pavel
d2e9f37bee
Merge branch 'master' into format-by-extention 2022-01-14 18:36:23 +03:00
avogar
89a181bd19 Make better 2022-01-14 18:16:18 +03:00
Azat Khuzhin
a4c2f23b07 Fix "Chunk should have AggregatedChunkInfo in GroupingAggregatedTransform" 
In case of optimize_aggregation_in_order there will be
ChunkInfoWithAllocatedBytes.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-14 17:44:09 +03:00
Azat Khuzhin
06402386eb Do not generate empty chunks in AggregatingInOrderTransform 
This is just a micro optimization and it should not affect anything,
real fixes are in separate patches (previous and next).

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-14 17:44:09 +03:00
Azat Khuzhin
d9a64d1f86 Fix optimize_aggregation_in_order in case of empty result set 
Note, that this is not complete fix, see the next two patches.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-14 17:43:52 +03:00
Kruglov Pavel
5a908e8edd
Merge branch 'master' into formats-with-suffixes 2022-01-14 16:45:20 +03:00
Kruglov Pavel
d54a430d9c
Merge pull request #33566 from Avogar/fix-avro 
Fix segfault in Avro
 2022-01-14 16:01:56 +03:00
Kseniia Sumarokova
5da673c3a5
Merge pull request #31104 from bigo-sg/hive_table 
Implement hive table engine
 2022-01-14 09:39:17 +03:00
Kruglov Pavel
305d58a762
Merge pull request #33524 from Avogar/stacktrace-in-client 
Don't print exception twice in client in case of exception in parallel parsing
 2022-01-13 15:50:42 +03:00
taiyang-li
82a3024712 Merge remote-tracking branch 'ck/master' into bigo_hive_table 2022-01-13 18:11:23 +08:00
Nikolai Kochetov
872ee5dc09
Update src/Processors/Formats/Impl/AvroRowOutputFormat.h 
Co-authored-by: Bharat Nallan <bharatnc@gmail.com>
 2022-01-13 12:55:14 +03:00
tavplubix
bacdaa7b4d
Merge pull request #33564 from ClickHouse/fix_minor_bug_in_ttl 
Fix minor bug in TTL and flaky test
 2022-01-13 11:51:57 +03:00
avogar
c5ea4b1bc0 Fix segfault in Avro 2022-01-12 18:34:28 +03:00
avogar
8390e9ad60 Detect format by file name in file/hdfs/s3/url table functions 2022-01-12 18:29:31 +03:00
Alexander Tokmakov
72b67f37fc fix log message and flaky test 2022-01-12 18:20:22 +03:00
lgbo-ustc
5c71d3687a fixed some bugs 
1. interagtion test for test_hive_query failed
2. nullptr reference in arrowSchemaToCHHeader
 2022-01-12 17:01:05 +08:00
taiyang-li
66813a3aa9 merge master 2022-01-12 16:56:29 +08:00
avogar
9915ce7ded Fix segfault in arrowSchemaToCHHeader 2022-01-11 20:30:35 +03:00
avogar
0ae0aa712b Don't print exception twice in client in case of exception in parallel parsing 2022-01-11 18:37:07 +03:00
msaf1980
780a1b2abe graphite: split tagged/plain rollup rules (for merges perfomance) 2022-01-10 16:34:16 +05:00
Alexey Milovidov
a75f1ccb21 Fix build 2022-01-09 12:26:36 +03:00
Azat Khuzhin
c05dac89ee ReadFromRemote: Remove redundant ParallelReplicasReadingCoordinator 2022-01-07 20:04:57 +03:00
李扬
2df2442ad0
Merge branch 'master' into hive_table 2022-01-04 01:26:16 -06:00
taiyang-li
8730dda895 fix hivte text 2022-01-01 09:16:30 +08:00
taiyang-li
1e102bc1b2 merge master 2022-01-01 09:01:06 +08:00
alexey-milovidov
34b934a1e0
Merge pull request #33331 from ClickHouse/serxa/line-as-string-output-format 
Add LineAsString output format
 2021-12-31 14:38:36 +03:00
Sergei Trifonov
f1d398ae4b Add LineAsString output format 2021-12-30 20:38:54 +03:00
alesapin
16c36d72b1
Merge pull request #33296 from ClickHouse/fix_clang_tidy_3 
Fix clang tidy 3
 2021-12-29 22:43:42 +03:00
avogar
97788b9c21 Allow to create new files on insert for File/S3/HDFS engines 2021-12-29 21:19:13 +03:00
Kruglov Pavel
489a30859f
Merge pull request #32455 from Avogar/schema-inference 
Automatic schema inference for input formats
 2021-12-29 21:03:48 +03:00
alesapin
67fc9d7129 Fix clang-tidy 2021-12-29 18:35:54 +03:00
Nikolai Kochetov
c715204e18
Merge pull request #32271 from Algunenano/kill_scalar_github 
Be able to KILL scalar queries
 2021-12-29 16:00:59 +03:00
Kruglov Pavel
dd7f61b337
Merge branch 'master' into schema-inference 2021-12-29 12:59:05 +03:00
avogar
364b4f5d36 Fix special build 2021-12-29 12:21:01 +03:00
Kruglov Pavel
cb0ed7fcb7 Fix typo 2021-12-29 12:21:01 +03:00
avogar
26abf7aa62 Remove code duplication, use simdjson and rapidjson instead of Poco 2021-12-29 12:21:01 +03:00
avogar
74f09d6476 Fix tests 2021-12-29 12:18:56 +03:00