Serguey Zefirov 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

..

CMakeLists.txt

MCOL-4136 This patch makes an explicit dependency on generated errorids.h

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tdriver.cpp

clang format apply

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we_colop.cpp

New warnfixes (#2254)

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we_colop.h

clang format apply

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we_colopcompress.cpp

clang format apply

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we_colopcompress.h

clang format apply

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we_dctnrycompress.cpp

clang format apply

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we_dctnrycompress.h

clang format apply

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we_tablemetadata.cpp

New warnfixes (#2254)

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we_tablemetadata.h

New warnfixes (#2254)

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writeengine.cpp

MCOL-4580 extent elimination for dictionary-based text/varchar types

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writeengine.h

clang format apply

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