public java.lang.String getSql() {
    java.lang.Object ref = sql_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      sql_ = s;
      return s;
    }
  }
public java . lang . String getSql ( ) { java . lang . Object ref = sql_ ; if ( ref instanceof java . lang . String ) { return ( java . lang . String ) ref ; } else { com . google . protobuf . ByteString bs = ( com . google . protobuf . ByteString ) ref ; java . lang . String s = bs . toStringUtf8 ( ) ; sql_ = s ; return s ; } }
<pre>
The query request to generate partitions for. The request will fail if
the query is not root partitionable. The query plan of a root
partitionable query has a single distributed union operator. A distributed
union operator conceptually divides one or more tables into multiple
splits, remotely evaluates a subquery independently on each split, and
then unions all results.
This must not contain DML commands, such as INSERT, UPDATE, or
DELETE. Use
[ExecuteStreamingSql][google.spanner.v1.Spanner.ExecuteStreamingSql] with a
PartitionedDml transaction for large, partition-friendly DML operations.
</pre>

<code>string sql = 3;</code>