Expr converts any value to an expression. Internally it uses the `json` module to convert any literals, so any type annotations or methods understood

Attr gets an attribute's value from the row. Example usage: r.Expr(r.Map{"key": "value"}).Attr("key") => "value"

Count returns the number of elements in the response. Example usage: var response int err := r.Table("heroes").Count().Run(session).One(&response)

Err returns the last error encountered, for example, a network error while contacting the database server, or while parsing. Example usage: err := r

Run runs a query using the given session, there is one Run() method for each type of query.

Add sums two numbers or concatenates two arrays. Example usage: r.Expr(1,2,3).Add(r.Expr(4,5,6)) => [1,2,3,4,5,6] r.Expr(2).Add(2) => 4

Nth returns the nth element in sequence, zero-indexed. Example usage: var response int Get the second element of an array err := r.Expr(4,3,2,1).Nth

OrderBy sort the sequence by the values of the given key(s) in each row. The default sort is increasing. Example usage: var response []interface{} R

Update updates rows in the database. Accepts a JSON document, a RQL expression, or a combination of the two. Example usage: var response r.WriteResp

Get retrieves a single row by primary key. Example usage: var response map[string]interface{} err := r.Table("heroes").Get("Doctor Strange").Run(ses

Filter removes all objects from a sequence that do not match the given condition. The condition can be an RQL expression, an r.Map, or a function tha

Map transforms a sequence by applying the given function to each row. Example usage: var squares []int Square a series of numbers square := func(row

Reduce iterates over a sequence, starting with a base value and applying a reduction function to the value so far and the next row of the sequence. E

Db lets you perform operations within a specific database (this will override the database specified on the session). This can be used to access or c

Eq returns true if two values are equal. Example usage: r.Expr(1).Eq(1) => true

Insert inserts rows into the database. If no value is specified for the primary key (by default "id"), a value will be generated by the server, e.g.

Terms // Js creates an expression using Javascript code. The code is executed on the server (using eval() https://developer.mozilla.org/en-US/docs/

Derived Methods // Pluck takes only the given attributes from an object, discarding all others. See also .Without(). Example usage: var heroes []i

Atomic changes the required atomic-ness of a query. By default queries will only be run if they can be executed atomically, that is, all at once. If

Branch checks a test expression, evaluating the trueBranch expression if it's true and falseBranch otherwise. Example usage: Roughly equivalent RQL

Gt returns true if the first value is greater than the second. Example usage: r.Expr(2).Gt(1) => true

Table references all rows in a specific table, using the database that this method was called on. Example usage: var response []map[string]interface

Merge combines an object with another object, overwriting properties from the first with properties from the second. Example usage: var response int

Replace replaces rows in the database. Accepts a JSON document or a RQL expression, and replaces the original document with the new one. The new row m

CoerceTo converts a value of one type to another type. You can convert: a selection, sequence, or object into an ARRAY, an array of pairs into an OBJ

Lt returns true if the first value is less than the second. Example usage: r.Expr(1).Lt(2) => true

toTerm converts an arbitrary object to a Term, within the context that toTerm was called on.

Div divides two numbers. Example usage: r.Expr(3).Div(2) => 1.5

GroupBy does a sort of grouped map reduce. First the server groups all rows that have the same value for `attribute`, then it applys the map reduce t

HasFields returns true if an object has all the given attributes. Example usage: hero := r.Map{"name": "Iron Man", "energy": 6, "speed": 5} r.Expr(h

Mul multiplies two numbers. Example usage: r.Expr(2).Mul(3) => 6

Not performs a logical not on a value. Example usage: r.Expr(true).Not() => false

Zip flattens the results of a join by merging the "left" and "right" fields of each row together. If any keys conflict, the "right" field takes prece

And performs a logical and on two values. Example usage: r.Expr(true).And(true) => true

Asc tells OrderBy to sort a particular attribute in ascending order. This is the default sort. Example usage: var response []interface{} Retrieve v

ForEach runs a given write query for each row of a sequence. Example usage: Delete all rows with the given ids var response r.WriteResponse Delete m

Gt returns true if the first value is greater than or equal to the second. Example usage: r.Expr(2).Gt(2) => true

Next moves the iterator forward by one document, returns false if there are no more rows or some sort of error has occurred (use .Err() to get the las

Scan writes the current row into the provided variable, which must be passed by reference. NOTE: Scan uses json.Unmarshal internally and will not cle

Without removes the given attributes from an object. See also .Pluck(). Example usage: var heroes []interface{} err := r.Table("heroes").Without("r

All fetches all the results from an iterator into a reference to a slice. It may perform multiple network requests to the server until it has retriev

Append appends a value to an array. Example usage: var response []interface{} err := r.Expr(r.List{1, 2, 3, 4}).Append(5).Run(session).One(&response

Avg computes the average value of an attribute for a group, for use with the .GroupBy() method. Example usage: var response []interface{} err := r.T

Between gets all rows where the key attribute's value falls between the lowerbound and upperbound (inclusive). Use nil to represent no upper or lower

Close closes the session, freeing any associated resources. Example usage: err := sess.Close()

Delete removes one or more rows from the database. Example usage: var response r.WriteResponse Delete a single row by id id := "5d93edbb-2882-4594-

Desc tells OrderBy to sort a particular attribute in descending order. Example usage: var response []interface{} Retrieve villains in order of decre

EqJoin performs a join on two expressions, it is more efficient than .InnerJoin() and .OuterJoin() because it looks up elements in the right table by

Or performs a logical or on two values. Example usage: r.Expr(true).Or(false) => true

Reconnect closes and re-opens a session. Example usage: err := sess.Reconnect()

Skip returns all results after the first `start` results. Basically it's the opposite of .Limit(). Example usage: var response []int err := r.Expr(

Sub subtracts two numbers. Example usage: r.Expr(2).Sub(2) => 0

TypeOf returns the type of the expression. Example usage: var response string err := r.Expr(1).TypeOf().Run(session).One(&response) Example respons

Union concatenates two sequences. Example usage: var response []interface{} Retrieve all heroes and villains r.Table("heroes").Union(r.Table("villai

buildProtobuf converts a query to a protobuf and catches any panics raised by the toProtobuf() functions.

executeQuery is an internal function, shared by Rows iterator and the normal Run() call. Runs a protocol buffer formatted query, returns a list of str

ConcatMap constructs a sequence by running the provided function on each row, then concatenating all the results. Example usage: var flattened []int

Connect creates a new database session. NOTE: You probably should not share sessions between goroutines. Example usage: sess, err := r.Connect("loc

Count counts the number of rows in a group, for use with the .GroupBy() method. Example usage: var response []interface{} Count all heroes in each s

DbCreate creates a database with the supplied name. Example usage: err := r.DbCreate("marvel").Run(session).Exec()

DbDrop deletes the specified database Example usage: err := r.DbDrop("marvel").Run(session).Exec()

Distinct removes duplicate elements from a sequence. Example usage: var response []interface{} Get a list of all possible strength values for our he

GroupedMapReduce partitions a sequence into groups, then performs a map and a reduction on each group. See also .Map() and .GroupBy(). Example usage

InnerJoin performs an inner join on two sequences, using the provided function to compare the rows from each sequence. See also .EqJoin() and .OuterJo

Le returns true if the first value is less than or equal to the second. Example usage: r.Expr(2).Lt(2) => true

Limit returns only the first `limit` results from the query. Example usage: var response []int err := r.Expr(1,2,3,4,5).Limit(3).Run(session).One(&r

Mod divides two numbers and returns the remainder. Example usage: r.Expr(23).Mod(10) => 3

One gets the first result from a query response. Example usage: var result interface{} err := r.Table("villains").Get("Galactus", "name").Run(sessio

OuterJoin performs a left outer join on two sequences, using the provided function to compare the rows from each sequence. See also .EqJoin() and .Inn

SetDebug causes all queries sent to the server and responses received to be printed to stdout in raw form. Example usage: r.SetDebug(true)

Slice returns a section of a sequence, with bounds [lower, upper), where lower bound is inclusive and upper bound is exclusive. Example usage: var r