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https://issues.apache.org/jira/browse/CALCITE-6024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-6024:
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Summary: A more efficient implementation of SqlOperatorTable, backed by an
immutable multi-map keyed by upper-case operator name (was:
ListSqlOperatorTable is inefficient)
> A more efficient implementation of SqlOperatorTable, backed by an immutable
> multi-map keyed by upper-case operator name
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-6024
> URL: https://issues.apache.org/jira/browse/CALCITE-6024
> Project: Calcite
> Issue Type: Improvement
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.36.0
>
>
> {{ListSqlOperatorTable}} is inefficient if it contains a large number of
> operators. It currently examines the operators one by one.
> {{ReflectiveSqlOperatorTable}} (and its subclass, {{SqlStdOperatorTable}})
> builds a map of operators by name (actually two maps, one case-sensitive and
> one case-insensitive).
> {{ListSqlOperatorTable}} should do the same, at least in its immutable form.
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