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MCOL-4566: Add rebuildEM tool support to work with compressed files.

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* 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 commit is contained in:
Denis Khalikov
2021-03-10 17:23:13 +03:00
parent 2eec956977
commit 5d497e8821
25 changed files with 1560 additions and 406 deletions
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13
versioning/BRM/extentmap.h
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@ -344,6 +344,16 @@ public:
*/
EXPORT void load(const std::string& filename, bool fixFL = false);
/** @brief Loads the ExtentMap entries from a binayr blob.
*
* Loads the ExtentMap entries from a file. This will
* clear out any existing entries. The intention is that before
* the system starts, an external tool instantiates a single Extent
* Map and loads the stored entries.
* @param pointer to a binary blob.
*/
EXPORT void loadFromBinaryBlob(const char* blob);
/** @brief Saves the ExtentMap entries to a file
*
* Saves the ExtentMap entries to a file.
@ -1002,13 +1012,14 @@ private:
int _markInvalid(const LBID_t lbid, const execplan::CalpontSystemCatalog::ColDataType colDataType);
template <class T> void load(T* in);
/** @brief Loads the extent map from a file into memory.
*
* @param in (in) the file to load the extent map from.
* @param upgradeV4ToV5 (in) flag indicating whether we are upgrading
* extent map from v4 to v5.
*/
void loadVersion4or5(idbdatafile::IDBDataFile* in, bool upgradeV4ToV5);
template <class T> void loadVersion4or5(T* in, bool upgradeV4ToV5);
ExtentMapImpl* fPExtMapImpl;
FreeListImpl* fPFreeListImpl;