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https://issues.apache.org/jira/browse/IGNITE-21416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey Novikov updated IGNITE-21416:
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Description:
Globally it works the same way as in
[https://ignite.apache.org/docs/latest/SQL/sql-calcite#force_index-no_index],
but has some difference when FORCE_INDEX and NO_INDEX used together in the same
query. When both hints reference to the same index {{SELECT /*+
FORCE_INDEX('idx'), NOINDEX *{*}/,{*} SELECT /*+ NO_INDEX(TBL1_IDX2),
FORCE_INDEX(TBL2_IDX2) */, ...}} - it is invalid case. SQL is declarative
language and we shouldn't expect {{hints}} collection is ordered.
We need to fix example section and rewrite "Hint Scope" section.
was:
Globally it works the same way as in
[https://ignite.apache.org/docs/latest/SQL/sql-calcite#force_index-no_index],
but has some difference when FORCE_INDEX and NO_INDEX used together in the same
query. When both hints reference to the same index {{SELECT /+
FORCE_INDEX('idx'), NOINDEX */, {{SELECT \{*}/{*}+ NO_INDEX(TBL1_IDX2),
FORCE_INDEX(TBL2_IDX2) */, ...}} -}} it is invalid case. SQL is declarative
language and we shouldn't expect {{hints}} collection is ordered.
We need to fix example section and rewrite "Hint Scope" section.
> Add documentation for FORCE_INDEX/NO_INDEX hints
> ------------------------------------------------
>
> Key: IGNITE-21416
> URL: https://issues.apache.org/jira/browse/IGNITE-21416
> Project: Ignite
> Issue Type: Improvement
> Components: documentation, sql
> Reporter: Andrey Novikov
> Priority: Minor
> Labels: ignite-3
>
> Globally it works the same way as in
> [https://ignite.apache.org/docs/latest/SQL/sql-calcite#force_index-no_index],
> but has some difference when FORCE_INDEX and NO_INDEX used together in the
> same query. When both hints reference to the same index {{SELECT /*+
> FORCE_INDEX('idx'), NOINDEX *{*}/,{*} SELECT /*+ NO_INDEX(TBL1_IDX2),
> FORCE_INDEX(TBL2_IDX2) */, ...}} - it is invalid case. SQL is declarative
> language and we shouldn't expect {{hints}} collection is ordered.
> We need to fix example section and rewrite "Hint Scope" section.
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