* MSan added with fixes for libc++
* libc++ sepatare build
* add libc++ to ci
* libstdc++ in CI
* libcpp and msan to external projects
* std::sqrt
* awful_hack(ci): install whole llvm instead of libc++ in terrible way for test containers
* Adding ddeb packages for teststages and repos
* libc++ more for test container
* save some money on debug
* colored coredumps
* revert ci
* chore(ci): collect asan ubsan and libc++ build with mtr and regression status ignored
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.
* 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
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>
Introduced fDecimalOverflowCheck to enable/disable overflow check.
Add support into a FunctionColumn.
Low level scanning crashes on medium sized data sets.
