Reindex context

Use a Painless script in a reindex operation to add, modify, or delete fields within each document in an original index as its reindexed into a target index.

Variables

params (Map, read-only): User-defined parameters passed in as part of the query.
ctx['op'] (String): The name of the operation.
ctx['_routing'] (String): The value used to select a shard for document storage.
ctx['_index'] (String): The name of the index.
ctx['_id'] (String): The unique document id.
ctx['_version'] (int): The current version of the document.
ctx['_source'] (Map): Contains extracted JSON in a Map and List structure for the fields existing in a stored document.

Side Effects

ctx['op']: Use the default of index to update a document. Set to noop to specify no operation or delete to delete the current document from the index.
ctx['_routing']: Modify this to change the routing value for the current document.
ctx['_index']: Modify this to change the destination index for the current document.
ctx['_id']: Modify this to change the id for the current document.
ctx['_version'] (int): Modify this to modify the version for the current document.
ctx['_source']: Modify the values in the Map/List structure to add, modify, or delete the fields of a document.

Return

void: No expected return value.

API

The standard Painless API is available.

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