QueryPerformanceInfo

Page Summary

QueryPerformanceInfo provides performance details for query execution.
The data_processed field indicates the data size read by the query and uses a union field that can be represented as zeroMb , lessThanOneMb , or processedMb .
zeroMb is a boolean indicating if 0 bytes were processed, while lessThanOneMb is a boolean for processing less than 1 MiB.
processedMb is a string (int64 format) representing the MiB of data read when the size is 1 MiB or larger, with -1 indicating the processed bytes could not be fetched.

JSON representation

Performance info for the query execution.

JSON representation

JSON representation
{ // Union field `data_processed` can be only one of the following: "zeroMb" : boolean , "lessThanOneMb" : boolean , "processedMb" : string // End of list of possible types for union field `data_processed` . }

 { 
 // Union field data_processed 
can be only one of the following: 
 "zeroMb" 
 : 
 boolean 
 , 
 "lessThanOneMb" 
 : 
 boolean 
 , 
 "processedMb" 
 : 
 string 
 // End of list of possible types for union field data_processed 
. 
 }

Fields

Union field data_processed . Data size this query reads. See https://cloud.google.com/bigquery/pricing#data for details on how this is calculated. data_processed can be only one of the following:

zeroMb

boolean

True if the processed data is 0 bytes.

lessThanOneMb

boolean

True if the processed data is less than 1 MiB.

processedMb

string ( int64 format)

MiB data this query reads. Set if the data size is equal to or larger than 1 MiB. -1 means we could not fetch the processed bytes for this query.

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Page Summary

QueryPerformanceInfo