multivalue

Multivalued Fields a Good Idea?

点点圈 提交于 2019-11-27 09:07:43
I have recently been introduced to the new Access 2007 feature which is multivalued fields. My initial impression is that it is a bad idea to make use of multiple values in a single field. Traditionally if you wanted to allow for a record to have several values for a field you would create another two tables and link them with foreign keys. This allows for easy querying and ensures that duplicate values reference the same item. Keeping lists in a cell seems like a violation of the purpose of databases. Are there good uses for these fields which don't make me feel dirty? The idea of multivalued

What is the use of “multiValued” field type in Solr?

老子叫甜甜 提交于 2019-11-26 20:02:00
I'm new to Apache Solr. Even after reading the documentation part, I'm finding it difficult to clearly understand the functionality and use of the multiValued field type property. What internally Solr does/treats/handles a field that is marked as multiValued ? What is the difference in indexing in Solr between a field that is multiValued and those that are not? Can somebody explain with some good example? Doc says: multiValued=true|false True if this field may contain multiple values per document, i.e. if it can appear multiple times in a document Umar A multivalued field is useful when there

Multivalued Fields a Good Idea?

怎甘沉沦 提交于 2019-11-26 14:34:07
问题 I have recently been introduced to the new Access 2007 feature which is multivalued fields. My initial impression is that it is a bad idea to make use of multiple values in a single field. Traditionally if you wanted to allow for a record to have several values for a field you would create another two tables and link them with foreign keys. This allows for easy querying and ensures that duplicate values reference the same item. Keeping lists in a cell seems like a violation of the purpose of

What is the use of “multiValued” field type in Solr?

前提是你 提交于 2019-11-26 07:29:58
问题 I\'m new to Apache Solr. Even after reading the documentation part, I\'m finding it difficult to clearly understand the functionality and use of the multiValued field type property. What internally Solr does/treats/handles a field that is marked as multiValued ? What is the difference in indexing in Solr between a field that is multiValued and those that are not? Can somebody explain with some good example? Doc says: multiValued=true|false True if this field may contain multiple values per