docs / it.uniroma3.dbtree.spi / KeyParserGroupBy / most_neqDB

most_neqDB

abstract fun most_neqDB(columnNameMin: List<String>, columnNameMax: List<String>): String (source)

Let k_min = (x_min, y_min). Let k_max = (x_max, y_max).

DB query for 'x_min not equal to x_max' relationship.

Returns the string querying underlying DB for all elements having k_min and k_max with a different most significant part. Underlying dataset must know how to interpret the query, and return the expected result.

Parameters

columnNameMin - the list of the names of the database columns interested in the comparison (they represent the x_min).

columnNameMax - the list of the names of the database columns interested in the comparison (they represent the x_max).

Return
the string to be interpreted by underlying database as x_min != x_max.