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47 Commits

Author SHA1 Message Date
8859e3f4df chore(build): satisfy gcc9 for execplan partionions unequivalence 2025-04-25 17:36:43 +04:00
bd1622f331 feat(MCOL-5886): support InnoDB's table partitions in cross-engine joins
The purpose of this changeset is to obtain list of partitions from
SELECT_LEX structure and pass it down to joblist and then to
CrossEngineStep to pass to InnoDB.
2025-04-23 08:24:10 +03:00
60dc7550f1 fix(group by, having): MCOL-5776: GROUP BY/HAVING closer to server's (#3371)
This patch introduces an internal aggregate operator SELECT_SOME that
is automatically added to columns that are not in GROUP BY. It
"computes" some plausible value of the column (actually, last one
passed).

Along the way it fixes incorrect handling of HAVING being transferred
into WHERE, window function handling and a bit of other inconsistencies.
2024-12-20 19:11:47 +00:00
b53c231ca6 MCOL-271 empty strings should not be NULLs (#2794)
This patch improves handling of NULLs in textual fields in ColumnStore.
Previously empty strings were considered NULLs and it could be a problem
if data scheme allows for empty strings. It was also one of major
reasons of behavior difference between ColumnStore and other engines in
MariaDB family.

Also, this patch fixes some other bugs and incorrect behavior, for
example, incorrect comparison for "column <= ''" which evaluates to
constant True for all purposes before this patch.
2023-03-30 21:18:29 +03:00
256691652d MCOL-4530: toCppCode() method for ParseTree and TreeNode (#2777)
* toCppCode for ParseTree and TreeNode

* generated tree is compiling

* Put tree constructors into tests

* Minor fixes

* Fixed parse + some constructors

* Fixed includes, removed debug and old data

* Hopefully fix clang errors

* Forgot an override

* More overrides
2023-03-22 23:25:06 +03:00
b6808c97f1 MCOL-4530: common conjuction top rewrite (#2673)
Added logical transformation of the execplan::ParseTrees with the taking out the common factor in expression of the form "(A and B) or (A and C)" for the purposes of passing a TPCH 19 query.

Co-authored-by: Leonid Fedorov <leonid.fedorov@mariadb.com>
2023-02-27 19:23:19 +03:00
d2432f9bf6 get rid of pointers for 128 fields 2022-08-26 15:12:22 +00:00
53b9a2a0f9 MCOL-4580 extent elimination for dictionary-based text/varchar types
The idea is relatively simple - encode prefixes of collated strings as
integers and use them to compute extents' ranges. Then we can eliminate
extents with strings.

The actual patch does have all the code there but miss one important
step: we do not keep collation index, we keep charset index. Because of
this, some of the tests in the bugfix suite fail and thus main
functionality is turned off.

The reason of this patch to be put into PR at all is that it contains
changes that made CHAR/VARCHAR columns unsigned. This change is needed in
vectorization work.
2022-03-02 23:53:39 +03:00
973e5024d8 MCOL-4957 Fix performance slowdown for processing TIMESTAMP columns.
Part 1:
 As part of MCOL-3776 to address synchronization issue while accessing
 the fTimeZone member of the Func class, mutex locks were added to the
 accessor and mutator methods. However, this slows down processing
 of TIMESTAMP columns in PrimProc significantly as all threads across
 all concurrently running queries would serialize on the mutex. This
 is because PrimProc only has a single global object for the functor
 class (class derived from Func in utils/funcexp/functor.h) for a given
 function name. To fix this problem:

   (1) We remove the fTimeZone as a member of the Func derived classes
   (hence removing the mutexes) and instead use the fOperationType
   member of the FunctionColumn class to propagate the timezone values
   down to the individual functor processing functions such as
   FunctionColumn::getStrVal(), FunctionColumn::getIntVal(), etc.

   (2) To achieve (1), a timezone member is added to the
   execplan::CalpontSystemCatalog::ColType class.

Part 2:
 Several functors in the Funcexp code call dataconvert::gmtSecToMySQLTime()
 and dataconvert::mySQLTimeToGmtSec() functions for conversion between seconds
 since unix epoch and broken-down representation. These functions in turn call
 the C library function localtime_r() which currently has a known bug of holding
 a global lock via a call to __tz_convert. This significantly reduces performance
 in multi-threaded applications where multiple threads concurrently call
 localtime_r(). More details on the bug:
   https://sourceware.org/bugzilla/show_bug.cgi?id=16145

 This bug in localtime_r() caused processing of the Functors in PrimProc to
 slowdown significantly since a query execution causes Functors code to be
 processed in a multi-threaded manner.

 As a fix, we remove the calls to localtime_r() from gmtSecToMySQLTime()
 and mySQLTimeToGmtSec() by performing the timezone-to-offset conversion
 (done in dataconvert::timeZoneToOffset()) during the execution plan
 creation in the plugin. Note that localtime_r() is only called when the
 time_zone system variable is set to "SYSTEM".

 This fix also required changing the timezone type from a std::string to
 a long across the system.
2022-02-14 14:12:27 -05:00
04752ec546 clang format apply 2022-01-21 16:43:49 +00:00
05897948e4 MCOL-4899 MCS now applies a correct collation running IN for character data types 2022-01-05 12:00:01 +00:00
a202bda485 MCOL-4719 iterate into subquery looking for windowfunctions
When an outer query filter accesses an subquery column that contains an aggregate or a window function, certain optimizations can't be performed. We had been looking at the surface of the returned column. We now iterate into any functions or operations looking for aggregates and window functions.
2021-07-22 13:56:21 -05:00
8520f87237 MCOL-641 Cleanup. 2021-07-06 09:01:49 +00:00
995cadef2d MCOL-641 Fix alter table add wide decimal column.
This patch also removes CalpontSystemCatalog::BINARY and
ddlpackage::DDL_BINARY that were added during the initial
stages of the work on MCOL-641.
2020-11-20 19:49:54 -05:00
3eb26c0d4a MCOL-4313 Introduced TSInt128 that is a storage class for int128
Removed uint128 from joblist/lbidlist.*

Another toString() method for wide-decimal that is EMPTY/NULL aware

Unified decimal processing in WF functions

Fixed a potential issue in EqualCompData::operator() for
    wide-decimal processing

Fixed some signedness warnings
2020-11-18 13:53:15 +00:00
638202417f MCOL-4171 2020-11-18 13:52:19 +00:00
74b64eb4f1 MCOL-641 1. Add support for int128_t in ParsedColumnFilter.
2. Set Decimal precision in SimpleColumn::evaluate().
3. Add support for int128_t in ConstantColumn.
4. Set IDB_Decimal::s128Value in buildDecimalColumn().
5. Use width 16 as first if predicate for branching based on decimal width.
2020-11-18 13:47:45 +00:00
238386bf63 MCOL-641 Replaced IDB_Decima.__v union with int128_t attribute.
Moved all tests into ./test

Introduced ./datatypes directory
2020-11-18 13:47:44 +00:00
de85e21c38 MCOL-641 This commit cleans up Row methods and adds couple UT for Row. 2020-11-18 13:47:02 +00:00
98213c0094 MCOL-641 Addition now works for DECIMAL columns with precision > 18. 2020-11-18 13:47:01 +00:00
54c152d6c8 MCOL-641 This commit introduces templates for DataConvert and RowGroup methods. 2020-11-18 13:47:01 +00:00
32f6167067 MCOL-641 Work of Ivan Zuniga on basic read and write support for Binary16 2020-11-18 13:47:00 +00:00
f4a6294c95 Fix ignored qualifiers warnings (-Wignored-qualifiers) 2020-11-17 15:03:10 +03:00
35c4b66a67 MCOL-4144 Enable lower_case_table_names
Create tables and schemas with lower case name only if the flag is set.
During operations, convert to lowercase in plugin. Byt the time a query gets to ExeMgr, DDLProc etc., everything must be lower case if the flag is set, and undisturbed if not.
2020-09-24 15:21:13 -05:00
b1bc995420 Merge branch 'develop' into remove-infinidb 2019-08-13 12:32:01 +03:00
6cdca1330b Merge pull request #808 from mariadb-corporation/develop-merge-up-20190729
Merge develop-1.2 into develop
2019-08-13 11:55:22 +03:00
9d83b49fca MCOL-104 First pass of InfiniDB rename in code 2019-08-12 09:41:28 +01:00
7b006b6e74 MCOL-104 Remove InfiniDB Engine
Remove the InfiniDB engine which is a duplicate of the ColumnStore
engine.
2019-08-09 11:51:55 +01:00
a09a9d5d0f Mass substitution 'Corporaton' -> 'Corporation' 2019-08-07 14:43:25 -05:00
811909aa72 Merge branch 'develop-1.2' into develop-merge-up-20190729 2019-07-29 12:19:26 +01:00
9c4ac78105 MCOL-2225 Make cross-engine step use backticks
If an InnoDB table has spaces in the column names the cross engine step
would fail. This patch wraps quotes around the table and column names to
support this use case.
2019-06-26 07:50:17 +01:00
e89d1ac3cf MCOL-265 Add support for TIMESTAMP data type 2019-04-23 00:00:09 -04:00
3f2c753947 MCOL-1822-c final checkin 2019-03-05 09:33:39 -06:00
c5b9ae11e5 MCOL-1822 add LONG DOUBLE support 2019-01-29 09:55:43 -06:00
03da6df473 Merge branch 'develop-1.1' into 1.1-merge-up-20180817 2018-08-17 16:17:13 +01:00
ec9069853e MCOL-1531 Remove commented fields from equality functions 2018-07-24 09:10:46 -05:00
3c1ebd8b94 MCOL-392 Add initial TIME datatype support 2018-04-30 09:42:41 +01:00
280dcb44bf Merge branch 'develop-1.1' into dev-merge-up-20180409 2018-04-09 19:15:18 +01:00
aa581b5dc3 MCOL-1234 Nested CASE filters not processed
Change the way buildCaseFunction() handles the ptWorkStack and the rcWorkStack.
2018-04-02 17:02:54 -05:00
59d0a45da3 Merge branch 'develop-1.1' into 1.1-merge-up 2017-12-12 20:26:00 +00:00
37f673d121 Merge branch 'develop-1.0' into 1.0-merge-up 2017-11-30 15:09:11 +00:00
7fe55926ec MCOL-1040 Fix returnedColumn assumption
Code appears to assume a simple returned column is derrived when that
may not always be the case.
2017-11-29 14:47:05 +00:00
01446d1e22 Reformat all code to coding standard 2017-10-26 17:18:17 +01:00
e9db44424c MCOL-642 Separate TEXT from BLOB
* TEXT and BLOB now have separate identifiers internally
* TEXT columns are identified as such in system catalog
* cpimport only requires hex input for BLOB, not TEXT
2017-03-27 21:36:27 +01:00
093aa377e5 MCOL-267 multi-block support for PrimProc and bulk
* Adds multi-block bulk write support
* Adds PrimProc multi-block read support
* Allows the functions length() and hex() to work with BLOB columns
2017-03-20 18:32:24 +00:00
b1b60065d9 build fails with boost linking errors 2016-06-03 13:55:09 +03:00
f6afc42dd0 the begginning 2016-01-06 14:08:59 -06:00