[#MCOL-4673] Regression: calShowPartition returns N/A

If I compile this ColumnStore revision:

commit 47772cff10a094b2e2a1937a397378d4cb25faf0 (HEAD -> develop)

Merge: f33b8605 16002e28

Author: Roman Nozdrin <drrtuy@gmail.com>

Date:   Tue Apr 6 12:44:04 2021 +0300

    Merge pull request #1848 from mariadb-AlexeyAntipovsky/MCOL-4573-dev

    [MCOL-4573] resize cpimport.bin arg vector as needed

and run this SQL script:

DROP TABLE IF EXISTS t1;

CREATE TABLE t1 (a DECIMAL(17,1)) ENGINE=ColumnStore;

INSERT INTO t1 VALUES (-8999999999999999.9);

SELECT * FROM t1 WHERE a=0;

SELECT calShowPartitions('t1','a');

in prints the following output:

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

| calShowPartitions('t1','a')                                                                                                                                  |

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

| Part#     Min                           Max                           Status

  0.0.1     -8999999999999999.9           -8999999999999999.9           Enabled |

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

1 row in set (0.002 sec)

Notice, it prints good Min and Max values.

If I compile ColumnStore with the next revision in the history:

commit c1138c4793c39772e73502c945d6ba6102b3aba3 (HEAD -> develop)

Merge: 47772cff 1143e89f

Author: Roman Nozdrin <drrtuy@gmail.com>

Date:   Tue Apr 6 12:46:02 2021 +0300

    Merge pull request #1771 from mariadb-SergeyZefirov/MCOL-2044-update-ranges-during-DML

and rerun the same script, it does not print Min/Max values anymore:

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

| calShowPartitions('t1','a')                                                                                                                                  |

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

| Part#     Min                           Max                           Status

  0.0.1     N/A                           N/A                           Enabled |

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

1 row in set (0.002 sec)

I don't know if this change was intentional. Probably not.

[MCOL-4673] Regression: calShowPartition returns N/A Created: 2021-04-09 Updated: 2021-06-18 Resolved: 2021-05-24
Status:	Closed
Project:	MariaDB ColumnStore
Component/s:	ExeMgr
Affects Version/s:	6.1.1
Fix Version/s:	6.1.1

[MCOL-4673] Regression: calShowPartition returns N/A Created: 2021-04-09 Updated: 2021-06-18 Resolved: 2021-05-24