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https://issues.apache.org/jira/browse/CASSANDRA-18248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Berenguer Blasi updated CASSANDRA-18248:
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Summary: Consider avoiding streams on query building (was: Avoid streams
usage in potential hot paths)
> Consider avoiding streams on query building
> -------------------------------------------
>
> Key: CASSANDRA-18248
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18248
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Berenguer Blasi
> Priority: Normal
> Labels: low-hanging-fruit
>
> During the review of CASSANDRA-18068 it was discussed whether preparing
> queries might be considered a hot path or not. Seen in isolation it isn't.
> But given multi-tenancy setups i.e. and coming from the experience of seeing
> how prepare is used by some customers as per some bug reports this might not
> be 100% true
> Let's discuss here if removing streams would make any sense. Most rewrites I
> expect wouldn't impact readability. [~adelapena] took a first stab and
> compiled a first list of candidates:
> *
> [o.a.c.cql3/CQL3Type.java#L840|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/CQL3Type.java#L840]
> *
> [o.a.c.cql3/CQL3Type.java#L876|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/CQL3Type.java#L876]
> *
> [o.a.c.cql3/Lists.java#L133|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/Lists.java#L133]
> *
> [o.a.c.cql3/Sets.java#L123|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/Sets.java#L123]
> *
> [o.a.c.cql3/MultiColumnRelation.java#L225|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/MultiColumnRelation.java#L225]
> *
> [o.a.c.cql3/QueryProcessor.java#L481|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/QueryProcessor.java#L481]
> *
> [o.a.c.cql3/TokenRelation.java#L138|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/TokenRelation.java#L138]
> *
> [o.a.c.cql3/conditions/ColumnConditions.java#L75|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/conditions/ColumnConditions.java#L75]
> *
> [o.a.c.cql3/functions/AbstractFunction.java#L69|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/functions/AbstractFunction.java#L69]
> *
> [o.a.c.cql3/functions/FunctionResolver.java#L203|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/functions/FunctionResolver.java#L203]
> *
> [o.a.c.cql3/functions/UDAggregate.java#L97|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/functions/UDAggregate.java#L97]
> *
> [o.a.c.cql3/restrictions/StatementRestrictions.java#L380|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/restrictions/StatementRestrictions.java#L380]
> *
> [o.a.c.cql3/selection/AbstractFunctionSelector.java#L72|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/AbstractFunctionSelector.java#L72]
> *
> [o.a.c.cql3/selection/MapSelector.java#L113|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/MapSelector.java#L113]
> *
> [o.a.c.cql3/selection/Selectable.java#L708|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/Selectable.java#L708]
> *
> [o.a.c.cql3/selection/Selectable.java#L793|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/Selectable.java#L793]
> *
> [o.a.c.cql3/selection/Selectable.java#L886|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/Selectable.java#L886]
> *
> [o.a.c.cql3/selection/Selectable.java#L954|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/Selectable.java#L954]
> *
> [o.a.c.cql3/selection/Selectable.java#L1024|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/selection/Selectable.java#L1024]
> *
> [o.a.c.cql3/statements/SelectStatement.java#L1278|https://github.com/apache/cassandra/blob/cassandra-4.1.0/src/java/org/apache/cassandra/cql3/statements/SelectStatement.java#L1278]
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