Other Uses of the Document Structure

Query Filter Documents

Query filter documents specify the conditions that determine which records to select for read, update, and delete operations.

You can use <field>:<value> expressions to specify the equality condition and query operator expressions.

{
  <field1>: <value1>,
  <field2>: { <operator>: <value> },
  ...
}

For examples, see:

• Read Documents

• Query on Embedded/Nested Documents

• Query an Array

• Query an Array of Embedded Documents

Update Specification Documents

Update specification documents use update operators to specify the data modifications to perform on specific fields during an update operation.

{
  <operator1>: { <field1>: <value1>, ... },
  <operator2>: { <field2>: <value2>, ... },
  ...
}

For examples, see Update specifications.

Index Specification Documents

Index specification documents define the field to index and the index type:

{ <field1>: <type1>, <field2>: <type2>, ...  }