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solr/modules/sql/README.md

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+
+      http://www.apache.org/licenses/LICENSE-2.0
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+
+Apache Solr SQL Module
+===============================
+
+Introduction
+------------
+This module implements the support for SQL in Apache Solr.
+
+Building
+--------
+The SQL module uses the same Gradle build as the core Solr components.
+
+To build the module, you can use
+
+```
+./gradlew :solr:modules:sql:assemble
+```
+
+The resulting module will be placed to the libs directory, for example:
+`solr/modules/sql/build/libs/solr-sql-9.0.0-SNAPSHOT.jar`
+
+To execute the module tests:
+
+```
+./gradlew :solr:modules:sql:test
+```
+
+Usage
+-----
+Please refer to the 'SQL Query Language' section of the reference guide: https://solr.apache.org/guide/solr/latest/query-guide/sql-query.html