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Configuring an External Dictionary

If dictionary is configured using xml file, than dictionary configuration has the following structure:

<dictionary>
<name>dict_name</name>

<structure>
<!-- Complex key configuration -->
</structure>

<source>
<!-- Source configuration -->
</source>

<layout>
<!-- Memory layout configuration -->
</layout>

<lifetime>
<!-- Lifetime of dictionary in memory -->
</lifetime>
</dictionary>

Corresponding DDL-query has the following structure:

CREATE DICTIONARY dict_name
(
... -- attributes
)
PRIMARY KEY ... -- complex or single key configuration
SOURCE(...) -- Source configuration
LAYOUT(...) -- Memory layout configuration
LIFETIME(...) -- Lifetime of dictionary in memory
  • name – The identifier that can be used to access the dictionary. Use the characters [a-zA-Z0-9_\-].
  • source — Source of the dictionary.
  • layout — Dictionary layout in memory.
  • structure — Structure of the dictionary . A key and attributes that can be retrieved by this key.
  • lifetime — Frequency of dictionary updates.