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v4.0
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    v4.0

      Index

      Naming Conventions

      • Index has the same name and schema with the property it references;
      • Full-text name is defined by user, and cannot duplicate in one graph;
        • Please refer to chapter Basic Concepts for the naming conventions of full-text.

      Show Index

      Returned table name: _nodeIndex, _edgeIndex
      Returned table header: name | properties | schema | status (Name, properties, schema and status [creating|done] of index)

      Syntax:

      // To show all indexes in the current graphset (node indexes and edges indexes in separate tables)
      show().index() 
      
      // To show all node indexes in the current graphset
      show().node_index()
      
      // To show all edge indexes in the current graphset
      show().edge_index()
      

      Show Full-text

      Returned table name: _nodeFulltext, _edgeFulltext
      Returned table header: name | properties | schema | status (Name, properties, schema and status [creating|done] of index)

      Syntax:

      // To show all full-text indexes in the current graphset
      show().fulltext()
      
      // To show all full-text node indexes in the current graphset
      show().node_fulltext()
      
      // To show all full-text edge indexes in the current graphset
      show().edge_fulltext()
      

      Create Index

      Syntax:

      // To create index for a certain property of a certain node schema in the current graphset
      create().node_index(@<schema>.<property>)
      
      // To create index for a certain property of all node schemas (if has) in the current graphset
      create().node_index(@*, <property>)
      
      // To create index for a certain property of a certain edge schema in the current graphset
      create().edge_index(@<schema>.<property>)
      
      // To create index for a certain property of all edge schemas (if has) in the current graphset
      create().edge_index(@*, <property>)
      
      // To create index for multiple node/edge properties using the four methods above
      create()
        .node_index(@<schema>.<property>)
        .node_index(@*, <property>)
        .edge_index(@<schema>.<property>)
        .edge_index(@*, <property>)
        ...
      

      Example: Create index for @card property balance

      create().node_index(@card.balance)
      

      Example: Create index for @transaction property amount

      create().edge_index(@transaction.amount)
      

      Create Full-text

      Syntax:

      // To create full-text index for a certain property of a certain node schema in the current graphset
      create().node_fulltext(@<schema>.<property>,"<name>")
      
      // To create full-text index for a certain property of a certain edge schema in the current graphset
      create().edge_fulltext(@<schema>.<property>,"<name>")
      

      Example: Create full-text index named "prodDesc" for @product property description

      create().node_fulltext(@product.description, "prodDesc")
      

      Drop Index

      Syntax:

      // To delete index for a certain property of a certain node schema from the current graphset
      drop().node_index(@<schema>.<property>)
      
      // To delete index for a certain property of all node schemas (if has) from the current graphset
      drop().node_index(@*, <property>)
      
      // To delete index for a certain property of a certain edge schema from the current graphset
      drop().edge_index(@<schema>.<property>)
      
      // To delete index for a certain property of all edge schemas (if has) from the current graphset
      drop().edge_index(@*, <property>)
      
      // To delete index for multiple node/edge properties using the four methods above
      drop()
        .node_index(@<schema>.<property>)
        .node_index(@*, <property>)
        .edge_index(@<schema>.<property>)
        .edge_index(@*, <property>)
        ...
      

      Example: Delete the index for @card property balance

      drop.().node_index(@card.balance)
      

      Example: Delete the index for @transaction property amount

      drop.().edge_index(@transaction.amount)
      

      Drop Full-text

      Syntax:

      // To delete full-text index for a certain node property from the current graphset
      drop().node_fulltext("<name>")
      
      // To delete full-text index for a certain edge property from the current graphset
      drop().edge_fulltext("<name>")
      

      Example: Delete the full-text index named 'prodDesc'

      drop.().node_fulltext("prodDesc")
      
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