data types TEXT, CHAR, VARCHAR, FLOAT and DOUBLE are not yet supported by vectorized path
This patch introduces an example for Google benchmarking suite to measure a perf diff
b/w legacy scan/filtering code and the templated version
* Adds CompressInterfaceLZ4 which uses LZ4 API for compress/uncompress.
* Adds CMake machinery to search LZ4 on running host.
* All methods which use static data and do not modify any internal data - become `static`,
so we can use them without creation of the specific object. This is possible, because
the header specification has not been modified. We still use 2 sections in header, first
one with file meta data, the second one with pointers for compressed chunks.
* Methods `compress`, `uncompress`, `maxCompressedSize`, `getUncompressedSize` - become
pure virtual, so we can override them for the other compression algos.
* Adds method `getChunkMagicNumber`, so we can verify chunk magic number
for each compression algo.
* Renames "s/IDBCompressInterface/CompressInterface/g" according to requirement.
* This patch adds rebuildEM tool support to work with compressed files.
* This patch increases a version of the file header.
Note: Default version of the `rebuildEM` tool was using very old API,
those functions are not present currently. So `rebuildEM` will not work with
files created without compression, because we cannot deduce some info which are
needed to create column extent.
* This patch extends CompressedDBFileHeader struct with new fields:
`fColumWidth`, `fColDataType`, which are necessary to rebuild extent map
from the given file. Note: new fields do not change the memory
layout of the struct, because the size is calculated as
max(sizeof(CompressedDBFileHeader), HDR_BUF_LEN)).
* This patch changes API of some functions, by adding new function
argument `colDataType` when needed, to be able to call `initHdr`
function with colDataType value.
* This patch adds file2Oid function. This function is needed
to map ColumnStore file name to an oid, partition and segment.
* Tests added to check that this function works correctly.
* This patch is related to MCOL-4566, so it adds a new file with GTests.
Note: The description for the functions follows the description style
in the current file.
* Use const uint8_t* instead of uint64_t.
* Turn off 'testExtentCrWOPreallocBin' test body since this test
turned off after MCOL-641 when CalpontSystemCatalog::BINARY type was removed.
* Move shared_components_tests to tests directory.
MCOL-4409 This patch combines VDecimal and Decimal and makes
IDB_Decimal an alias for the result class
MCOL-4409 More boilerplate reduction in Func_mod
Removed couple TSInt128::toType() methods
For now it consists of only:
using int128_t = __int128;
using uint128_t = unsigned __int128;
All new privitive data types should go into this file in the future.
Introduced fDecimalOverflowCheck to enable/disable overflow check.
Add support into a FunctionColumn.
Low level scanning crashes on medium sized data sets.
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.
