[MCOL-1101] Move system variables into plugin Created: 2017-12-12  Updated: 2019-09-19  Resolved: 2019-09-19

Status: Closed
Project: MariaDB ColumnStore
Component/s: None
Affects Version/s: None
Fix Version/s: 1.4.0

Type: New Feature Priority: Major
Reporter: Andrew Hutchings (Inactive) Assignee: Daniel Lee (Inactive)
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Problem/Incident
causes MCOL-3247 Plugin doesn't close connection with ... Closed
Epic Link: MariaDB ColumnStore Generic Engine phase 2
Sprint: 2019-03, 2019-04, 2019-05, 2019-06

 Description   

The ColumnStore system variables should be moved into the plugin and renamed from InfiniDB to ColumnStore.

 Comments   
Comment by Roman [ 2019-02-18 ]

Please review.

Comment by Daniel Lee (Inactive) [ 2019-09-19 ]

Build tested: 1.4.0-1

[dlee@master centos7]$ cat gitversionInfo.txt
engine commit:
975463c

Verified that:
16 infinidb_ variables have been renamed to columnstore_.
infinidb_vtable_mode has been removed
4 new ones added:
columnstore_derived_handler
columnstore_processing_handlers_fallback
columnstore_select_handler
columnstore_group_by_handler

MariaDB [(none)]> show variables like "%columnstore%";
------------------------------------------------------+

Variable_name Value

------------------------------------------------------+

columnstore_compression_type SNAPPY
columnstore_decimal_scale 8
columnstore_derived_handler ON
columnstore_diskjoin_bucketsize 100
columnstore_diskjoin_largesidelimit 0
columnstore_diskjoin_smallsidelimit 0
columnstore_double_for_decimal_math OFF
columnstore_group_by_handler ON
columnstore_import_for_batchinsert_delimiter 7
columnstore_import_for_batchinsert_enclosed_by 17
columnstore_local_query 0
columnstore_ordered_only OFF
columnstore_processing_handlers_fallback OFF
columnstore_select_handler ON
columnstore_string_scan_threshold 10
columnstore_stringtable_threshold 20
columnstore_um_mem_limit 0
columnstore_use_decimal_scale OFF
columnstore_use_import_for_batchinsert ON
columnstore_varbin_always_hex OFF

------------------------------------------------------+
20 rows in set (0.004 sec)

Comment by Daniel Lee (Inactive) [ 2019-09-19 ]

Close based on the previous comment. Documentation of the 4 new variables are being worked on.

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