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Initializes (and possibly allocates) a query condition object using a triplet of attribute name, comparison value, and operator. Six types of conditions are supported, they all take a single scalar comparison argument and attribute to compare against. At present only integer or numeric attribute comparisons are implemented.

Usage

tiledb_query_condition_init(
  attr,
  value,
  dtype,
  op,
  qc = tiledb_query_condition()
)

Arguments

attr

A character value with the scheme attribute name

value

A scalar value that the attribute is compared against

dtype

A character value with the TileDB data type of the attribute column, for example 'FLOAT64' or 'INT32'

op

A character value with then comparison operation, this must be one of 'LT', 'LE', 'GT', 'GE', 'EQ', 'NE'.

qc

(optional) A 'tiledb_query_condition' object to be initialized by this call, if none is given a new one is allocated.

Value

The initialized 'tiledb_query_condition' object