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From "Samarth Jain (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-2896) Support encoded column qualifiers per column family
Date Thu, 24 May 2018 07:18:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-2896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16488565#comment-16488565
] 

Samarth Jain commented on PHOENIX-2896:
---------------------------------------

[~tdsilva] - I am not sure I understood your question. We use the default family name for
tracking column qualifier counters for mutable tables. 
{code:java}

if (immutableStorageScheme == SINGLE_CELL_ARRAY_WITH_OFFSETS && encodingScheme !=
NON_ENCODED_QUALIFIERS) {
// For this scheme we track column qualifier counters at the column family level.
cqCounterFamily = colDefFamily != null ? colDefFamily : (defaultFamilyName != null ? defaultFamilyName
: DEFAULT_COLUMN_FAMILY);
} else {
// For other schemes, column qualifier counters are tracked using the default column family.
cqCounterFamily = defaultFamilyName != null ? defaultFamilyName : DEFAULT_COLUMN_FAMILY;
}{code}

> Support encoded column qualifiers per column family 
> ----------------------------------------------------
>
>                 Key: PHOENIX-2896
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2896
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Thomas D'Silva
>            Assignee: Samarth Jain
>            Priority: Major
>             Fix For: 4.10.0
>
>
> This allows us to reduce the number of null values in the stored array that contains
all columns for a give column family for the COLUMNS_STORED_IN_SINGLE_CELL Storage Scheme.



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