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https://issues.apache.org/jira/browse/IGNITE-13732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17235245#comment-17235245
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Maksim Timonin edited comment on IGNITE-13732 at 11/19/20, 7:57 AM:
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[~zstan] Hi! I'm working near this code right now, so had a short look at this
ticket. I'm not sure how do you check idxTypes, current master code doesn't
have it in output. But I assume you used `idx.type()` to get it. So, type 13
means String. String are variable length so it can be pretty long, as
recommended size calculated as `val.getString().getBytes(CHARSET).length + 3`.
_KEY is used to make possible to store duplicated index keys in BPlusTree.
Sorry, If I missed something. But it's interesting to me because I worked on
this code two days ago. If you need some help with this ticket I can discover
it deeper if you provide more info (how table, index were created).
was (Author: timonin.maksim):
[~zstan] Hi! I'm working near this code right now, so had a short look at this
ticket. I'm not sure how do you check idxTypes, current master code doesn't
have it in output. But I assume you used `idx.type()` to get it. So, type 13
means String. String are variable length so it can be pretty long, as
recommended size calculated as `val.getString().getBytes(CHARSET).length + 3`.
_KEY is used to make possible to store duplicated index keys in BPlusTree.
Sorry, If I missed something. But it's interesting to me because I worked on
this code two days ago. If you need some help with this ticket I can discover
it deeper if you provide more info (how table, index are created).
> Incorrect inline suggestion.
> ----------------------------
>
> Key: IGNITE-13732
> URL: https://issues.apache.org/jira/browse/IGNITE-13732
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.9
> Reporter: Stanilovsky Evgeny
> Assignee: Stanilovsky Evgeny
> Priority: Major
>
> I found that inline size suggestions are incorrect, check for example :
> {noformat}
> Indexed columns of a row cannot be fully inlined into index what may lead to
> slowdown due to additional data page reads, increase index inline size if
> needed (use INLINE_SIZE option for CREATE INDEX command,
> QuerySqlField.inlineSize for annotated classes, or QueryIndex.inlineSize for
> explicit QueryEntity configuration) [cacheName=myCache, tableName=myTable,
> idxName=SOME_IDX_NAME, idxCols=[PAYMENTDATE, STATUS, _KEY], idxTypes=[0, 13,
> 19], curSize=10, idxType=SECONDARY, recommendedInlineSize=96]
> {noformat} but why ? If PAYMENTDATE - long and STATUS is boolean, i believe
> it need to be calculated like:
> 5 bytes for BO header + 8 (long) + 4? (boolean) = 17, and i don`t understand
> why "_KEY" presented here, no need to append inner field size here.
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