Examples with ColumnStatistics io.trino.spi.statistics.ColumnStatistics used on opensource projects

Example 21 with ColumnStatistics

use of io.trino.spi.statistics.ColumnStatistics in project trino by trinodb.

the class TestDeltaLakeMetastoreStatistics method testStatisticsNegativeInfinityAndNaN.

@Test
public void testStatisticsNegativeInfinityAndNaN() {
    // Stats with NaN values cannot be used
    DeltaLakeTableHandle tableHandle = registerTable("negative_infinity_nan");
    TableStatistics stats = deltaLakeMetastore.getTableStatistics(SESSION, tableHandle, Constraint.alwaysTrue());
    ColumnStatistics columnStatistics = stats.getColumnStatistics().get(COLUMN_HANDLE);
    assertEquals(columnStatistics.getRange().get().getMin(), NEGATIVE_INFINITY);
    assertEquals(columnStatistics.getRange().get().getMax(), POSITIVE_INFINITY);
}

Example 22 with ColumnStatistics

use of io.trino.spi.statistics.ColumnStatistics in project trino by trinodb.

the class TestDeltaLakeMetastoreStatistics method assertEmptyStats.

private void assertEmptyStats(TableStatistics tableStatistics) {
    assertEquals(tableStatistics.getRowCount(), Estimate.of(0));
    ColumnStatistics columnStatistics = tableStatistics.getColumnStatistics().get(COLUMN_HANDLE);
    assertEquals(columnStatistics.getNullsFraction(), Estimate.of(0));
    assertEquals(columnStatistics.getDistinctValuesCount(), Estimate.of(0));
}

Example 23 with ColumnStatistics

use of io.trino.spi.statistics.ColumnStatistics in project trino by trinodb.

the class TestDeltaLakeMetastoreStatistics method testStatisticsNegInf.

@Test
public void testStatisticsNegInf() {
    DeltaLakeTableHandle tableHandle = registerTable("negative_infinity");
    TableStatistics stats = deltaLakeMetastore.getTableStatistics(SESSION, tableHandle, Constraint.alwaysTrue());
    ColumnStatistics columnStatistics = stats.getColumnStatistics().get(COLUMN_HANDLE);
    assertEquals(columnStatistics.getRange().get().getMin(), NEGATIVE_INFINITY);
    assertEquals(columnStatistics.getRange().get().getMax(), NEGATIVE_INFINITY);
}

Example 24 with ColumnStatistics

use of io.trino.spi.statistics.ColumnStatistics in project trino by trinodb.

the class TestDeltaLakeMetastoreStatistics method testStatisticsNegZero.

@Test
public void testStatisticsNegZero() {
    DeltaLakeTableHandle tableHandle = registerTable("negative_zero");
    TableStatistics stats = deltaLakeMetastore.getTableStatistics(SESSION, tableHandle, Constraint.alwaysTrue());
    ColumnStatistics columnStatistics = stats.getColumnStatistics().get(COLUMN_HANDLE);
    assertEquals(columnStatistics.getRange().get().getMin(), -0.0d);
    assertEquals(columnStatistics.getRange().get().getMax(), -0.0d);
}