database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-29 08:21:15 +03:00
Code Activity

MCOL-3903 Enable Select Handler to run query part of INSERT..SELECT.

Browse Source 
Original SH implementation sends the result set back to the client
thus it can't be used in INSERT..SELECT, SELECT INTO OUTFILE,CREATE
TABLE AS SELECT etc.
CLX-77 feature has been backported into MDB to enable SH to run
query part of the mentioned queries.
This commit is contained in:
Roman Nozdrin
2020-03-26 10:19:27 +00:00
parent 4752f5440f
commit ab2003baaa
11 changed files with 201 additions and 325 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
dbcon/mysql/ha_mcs_pushdown.cpp
View File

@ -757,11 +757,9 @@ create_columnstore_select_handler(THD* thd, SELECT_LEX* select_lex)
return handler;
}
// Select_handler use the short-cut that effectively disables
// INSERT..SELECT, LDI, SELECT..INTO OUTFILE
// Select_handler couldn't properly process UPSERT..SELECT
if ((thd->lex)->sql_command == SQLCOM_INSERT_SELECT
|| (thd->lex)->sql_command == SQLCOM_CREATE_TABLE
|| (thd->lex)->exchange)
&& thd->lex->duplicates == DUP_UPDATE)
{
return handler;
}