querytypes

package
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Published: Mar 3, 2016 License: BSD-3-Clause Imports: 5 Imported by: 0

Documentation

Overview

Package querytypes defines internal types used in the APIs to deal with queries.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BindVariableToValue

func BindVariableToValue(v interface{}) (querypb.Value, error)

BindVariableToValue converts a native bind variable value to a proto Value.

func BindVariablesToProto3

func BindVariablesToProto3(bindVars map[string]interface{}) (map[string]*querypb.BindVariable, error)

BindVariablesToProto3 converts internal type to proto3 BindVariable array

func BoundQueryToProto3

func BoundQueryToProto3(sql string, bindVars map[string]interface{}) (*querypb.BoundQuery, error)

BoundQueryToProto3 converts internal types to proto3 BoundQuery

func Proto3ToBindVariables

func Proto3ToBindVariables(bv map[string]*querypb.BindVariable) (map[string]interface{}, error)

Proto3ToBindVariables converts a proto.BinVariable map to internal data structure

func QueryAsString

func QueryAsString(sql string, bindVariables map[string]interface{}) string

QueryAsString prints a readable version of query+bind variables, and also truncates data if it's too long

func QueryResultListToProto3

func QueryResultListToProto3(results []sqltypes.Result) []*querypb.QueryResult

QueryResultListToProto3 temporarily resurrected.

func QuerySplitsToProto3

func QuerySplitsToProto3(queries []QuerySplit) ([]*querypb.QuerySplit, error)

QuerySplitsToProto3 converts a native QuerySplit array to the proto3 version

Types

type BoundQuery

type BoundQuery struct {
	// Sql is the query
	Sql string

	// BindVariables is the map of bind variables for the query
	BindVariables map[string]interface{}
}

BoundQuery is one query in a QueryList. We only use it in arrays. For a single query, we just use Sql and BindVariables directly.

func Proto3ToBoundQuery

func Proto3ToBoundQuery(query *querypb.BoundQuery) (*BoundQuery, error)

Proto3ToBoundQuery converts a proto.BoundQuery to the internal data structure

func Proto3ToBoundQueryList

func Proto3ToBoundQueryList(queries []*querypb.BoundQuery) ([]BoundQuery, error)

Proto3ToBoundQueryList converts am array of proto.BoundQuery to the internal data structure

type QuerySplit

type QuerySplit struct {
	// Sql is the query
	Sql string

	// BindVariables is the map of bind variables for the query
	BindVariables map[string]interface{}

	// RowCount is the approximate number of rows this query will return
	RowCount int64
}

QuerySplit represents a split of a query, used for MapReduce purposes.

func Proto3ToQuerySplits

func Proto3ToQuerySplits(queries []*querypb.QuerySplit) ([]QuerySplit, error)

Proto3ToQuerySplits converts a proto3 QuerySplit array to a native QuerySplit array

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