database/mariadb-columnstore-engine
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MCOL-2178 SH now allows to fallback to other pushdown handlers.

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SH query execution migrated from SH::init() into create_SH().
There is a session variable columnstore_processing_handlers_fallback
that allows to fallback to DH, GBH if SH fails. DH now uses semantic
tree check for unsupported features to allow to fallback to GBH or
storage API.

Fixes GBH related bug when create_GBH() returns a handler for
queries with impossible WHERE/HAVING.

Fixed bug in FromSubquery::transform() where isUnion is set to true.

Enabled RTTI b/c server team enabled it for MDB.

Removed unused code supposed to be used with vtable.
This commit is contained in:
Roman Nozdrin
2019-08-25 04:05:59 +03:00
parent 4ef1133d9f
commit 2c63258537
10 changed files with 469 additions and 167 deletions
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dbcon/mysql/sm.cpp
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@@ -288,7 +288,7 @@ tpl_open ( tableid_t tableid,
SMDEBUGLOG << "tpl_open: ntplh: " << ntplh << " conn_hdl: " << conn_hdl << " tableid: " << tableid << endl;
// if first time enter this function for a statement, set
// queryState to QUERY_IN_PRCOESS and get execution plan.
// queryState to QUERY_IN_PROCESS and get execution plan.
if (conn_hdl->queryState == NO_QUERY)
{
conn_hdl->queryState = QUERY_IN_PROCESS;