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mck commented on CASSANDRA-14247: --------------------------------- WIP… || branch || testall || dtest || | [cassandra-3.11_14247|https://github.com/thelastpickle/cassandra/tree/mck/cassandra-3.11_14247] | [testall|https://circleci.com/gh/thelastpickle/cassandra/tree/mck%2Fcassandra-3.11_14247] | [dtest|https://builds.apache.org/view/A-D/view/Cassandra/job/Cassandra-devbranch-dtest/XXX] | | [trunk_14247|https://github.com/thelastpickle/cassandra/tree/mck/trunk_14247] | [testall|https://circleci.com/gh/thelastpickle/cassandra/tree/mck%2Ftrunk_14247] | [dtest|https://builds.apache.org/view/A-D/view/Cassandra/job/Cassandra-devbranch-dtest/XXX] | > SASI tokenizer for simple delimiter based entries > ------------------------------------------------- > > Key: CASSANDRA-14247 > URL: https://issues.apache.org/jira/browse/CASSANDRA-14247 > Project: Cassandra > Issue Type: Improvement > Components: sasi > Reporter: mck > Assignee: mck > Priority: Major > Fix For: 4.0, 3.11.x > > > Currently SASI offers only two tokenizer options: > - NonTokenizerAnalyser > - StandardAnalyzer > The latter is built upon Snowball, powerful for human languages but overkill > for simple tokenization. > A simple tokenizer is proposed here. The need for this arose as a workaround > around CASSANDRA-11182, and to avoid the disk usage explosion when having to > resort to {{CONTAINS}}. See https://github.com/openzipkin/zipkin/issues/1861 > Example use of this would be: > {code} > CREATE CUSTOM INDEX span_annotation_query_idx > ON zipkin2.span (annotation_query) USING > 'org.apache.cassandra.index.sasi.SASIIndex' > WITH OPTIONS = { > 'analyzer_class': > 'org.apache.cassandra.index.sasi.analyzer.DelimiterTokenizerAnalyzer', > 'delimiter': '░', > 'case_sensitive': 'true', > 'mode': 'prefix', > 'analyzed': 'true'}; > {code} > Original credit for this work goes to https://github.com/zuochangan -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org