Function makeSparseDataFromDouble

methods/svec/src/pg_gp/SparseData.c:1245–1258

* @param constant The value of an RLE block * @param dimension The size of an RLE block * @return A SparseData with a single RLE block of size dimension having value constant */

 * @return A SparseData with a single RLE block of size dimension having value constant
 */
SparseData makeSparseDataFromDouble(double constant,int64 dimension) {
	char *bytestore=(char *)palloc(sizeof(char)*9);
	SparseData sdata = float8arr_to_sdata(&constant,1);
	int8_to_compword(dimension,bytestore); /* create compressed version of
					          int8 value */

	int newlen = int8compstoragesize(bytestore);
	sdata->index->len = 0; // write over existing value
	appendBinaryStringInfo(sdata->index, bytestore, newlen);

	sdata->total_value_count = dimension;

	return sdata;
}

/**
 * Frees up the memory occupied by sdata