![]() The worker nodes stream tuples back to the /sql handler where the final merge is done, and finally the tuples are streamed back to the client. The worker nodes perform the relational algebra needed to satisfy the query plan. Using that solution, this should work: SELECT FROM mytable m WHERE EXISTS ( SELECT FROM ( SELECT '1234-567' groupid, 2 grouptype UNION ALL SELECT '4321-765', 3 UNION ALL SELECT '1111-222', 5) t WHERE m.groupid t.groupid AND m.grouptype t.grouptype) BTW, you should probably use a CTE to create that inner table. The worker nodes process the tuples returned from the Data Table tier in parallel. The partitioning is done inside of the Data Table tier so there is no duplication of data across the network.Īlso notice with this design ALL replicas in the data layer are shuffling (sorting & partitioning) data simultaneously.Īs the number of shards, replicas and workers grows this design allows for a massive amount of computing power to be applied to a single query. Notice that each worker contacts one replica from each shard.īecause there are 5 workers, each worker is returned 1/5 of the search results from each shard. Notice that the collection has five shards each with 3 replicas. The collection in the Data Table tier is the table from the SQL query. The diagram shows each worker node contacting a collection in the Data Table tier (in blue). The worker nodes execute the plan in parallel. The query plan is sent to worker nodes (in green). The /sql handler parses the SQL query and creates the parallel query plan. The request is handled by a single /sql handler instance. The client sends a SQL query to the /sql handler. The work-around is to use Solr query syntax directly inside of an equals expression wrapped in parens: b_is = '(+ +)' However, this may not be the case with multi-valued fields, as Solr might match documents. When performing ANDed range queries over a multi-valued field, Apache Calcite short-circuits to zero results if the ANDed predicates appear to be disjoint sets.įor example, b_is = 5 appears to Calcite to be disjoint sets, which they are from a single-valued field perspective. The maximum number of values for an IN clause is limited by the maxBooleanClauses configured for your collection. String literals must be wrapped in single-quotes double-quotes indicate database objects and not a string literal.Ī simplistic LIKE can be used with an asterisk wildcard, such as field = 'sam*' this is Solr specific and not part of the SQL standard. IN, LIKE, BETWEEN support the NOT keyword to find rows where the condition is not true, such as fielda NOT LIKE 'day%' ![]() Interpolation, Derivatives and Integrals.Streaming Expressions and Math Expressions.Indexing with Solr Cell and Apache Tika.Property Substitution in Configuration Files.Configuring Authentication and Authorization.SolrCloud with Legacy Configuration Files.SolrCloud Recoveries and Write Tolerance.Solr & ZooKeeper with Docker Networking.
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