JSON_OBJECT() (and probably some other JSON functions) now properly
handle empty strings in their arguments - JSON_OBJECT used to return
NULL, now it returns empty string.
Sometimes server assigns DOUBLE type for arithmetic operations over
DECIMAL arguments. In this rare case width of result was incorrectly
adjusted and it triggered an assertion.
Now width of result gets adjusted only if result type is also DECIMAL.
This changeset enables quick (mariadb -q) mode when columnstore is
installed. Quick mode precludes client CLI program from storing too
much data in memory, preventing out of memory conditions.
Add quick-max-column-width=0 to prevent extra garbage dashes in output.
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.
Fixes in UBSAN related commit introduced more server-compatible
behavior that differ fom our old behavior. Thus, old tests broke and
their results had to be changed. This is what this patch does.
The most important fix here is the fix of possible buffer overrun in
DATEFORMAT() function. A "%W" format, repeated enough times, would
overflow the 256-bytes buffer for result. Now we use ostringstream to
construct result and we are safe.
Changes in date/time projection functions made me fix difference between
us and server behavior. The new, better behavior is reflected in changes
in tests' results.
Also, there was incorrect logic in TRUNCATE() and ROUND() functions in
computing the decimal "shift."
This changeset enables quick (mariadb -q) mode when columnstore is
installed. Quick mode precludes client CLI program from storing too
much data in memory, preventing out of memory conditions.
* MCOL-4234: improve GROUP BY and ORDER BY interaction (#3194)
This patch fixes the problem in MCOL-4234 and also generally improves
behavior of GROUP BY.
It does so by introducing a "dummy" aggregate and by wrapping columns
into it. This allows for columns that are not in GROUP BY to be used
more freely, for example, in SELECT * FROM tbl GROUP BY col - all
columns that are not "col" will be wrapped into an aggregate and query
will proceed to execution.
The dummy aggregate itself does nothing more than remember last value
passed into it.
There also an additional error message that tries to explain what types
of expressions can be wrapped into an aggregate.
* MCOL-5772: incorrect ORDER BY ordering for a columns not in GROUP BY (#3214)
When ORDER BY column is not in GROUP BY, is not an aggregate and there
is a SELECT column that is also not an aggregate, there was a problem:
ordering happened on the SELECTed column, not ORDERed one.
This patch fixes that particular problem and also performs some tidying
around newly added aggregate.
---------
Co-authored-by: Leonid Fedorov <79837786+mariadb-LeonidFedorov@users.noreply.github.com>
* MCOL-5328: PCRE based regexp regexp_substr regexp_instr regexp_replace
* Add qa test for MCOL-5328
---------
Co-authored-by: Susil Behera <susil.behera@mariadb.com>
The UPDATE statement wrote NULL when the column set is DATETIME and
value is '0000-00-00 00:00:00'. The problem was inside WriteEngine's
handling of UPDATE statements and this is where heart of change is.
Other changes are related to some obsolete data structures in DML/DDL
handling that just hanging around there, doing nothing.
Limit test containers by memory, fix cgroup path inside the containers by introducing new ugly setting name
---------
Co-authored-by: drrtuy <roman.nozdrin@mariadb.com>
Co-authored-by: Roman Nozdrin <rnozdrin@mariadb.com>
This changeset contains fixes in Oracle mode tests and for the
implementation of the CONCAT_ORACLE. Also, we harmonise our translation
process with the recent changes in the server.
Due to changed behavior of the server, some CREATE VIEW/EXPLAIN
statements' results begun to output unexpected results and need to be
fixed.
Also, concatenation operation's name also changed. This lead to disabled
func_concat_oracle test to be enabled to test it and it turned out that
our implementation of this function was broken and need to be fixed too.
This is a fix of logging subsystem, nothing else.
The old code expanded an argument into string and advanced too little
and, if expansion contained argument's index, it expanded it again. And
again.
Fixes MCOL-5643.
The problem was that different views with same column names in GROUP BY
and on the SELECT clause produced an error about "projection column is
not an aggergate neither in GROUP BY list."
This was due to incorrect search in expressions's list that lead to
duplicate columns in GROUP BY list.
JSON functions were implemented violating an assumption of their
pureness, as they should not have any state. This concrete patch
fixes implementation of JSON_VALUE function.
We add intermediate calculations in int128_t when target is UBIGINT and
check for overflow before converting into the UBIGINT. This is so
because we can overflow on addition and multiplication, with (some)
signed operands or both unsigned.
Adds a special column which helps to differentiate data and rollups of
various depts and a simple logic to row aggregation to add processing of
subtotals.
1. Extend the following CalpontSystemCatalog member functions to
set CalpontSystemCatalog::ColType::charsetNumber, after the
system catalog update to add charset number to calpontsys.syscolumn
in MCOL-5005:
CalpontSystemCatalog::lookupOID
CalpontSystemCatalog::colType
CalpontSystemCatalog::columnRIDs
CalpontSystemCatalog::getSchemaInfo
2. Update cpimport to use the CHARSET_INFO object associated with the
charset number retrieved from the system catalog, for a
dictionary/non-dictionary CHAR/VARCHAR/TEXT column, to truncate
long strings that exceed the target column character length.
3. Add MTR test cases.
* Added order by clause to keep results consistent over test runs
* Updated test result for the merging of MCOL-5519
* Updated test results for the merging of MCOL-4632
* Updated test result for the merging of MCOL-5519
* Added missing / to path
* Improved few tests cases
* Fixed test case name
---------
Co-authored-by: root <root@rocky8.localdomain>
