use of com.facebook.presto.orc.metadata.statistics.ColumnStatistics in project presto by prestodb.
the class TupleDomainOrcPredicate method getDomain.
@VisibleForTesting
public static Domain getDomain(Type type, long rowCount, ColumnStatistics columnStatistics) {
if (rowCount == 0) {
return Domain.none(type);
}
if (columnStatistics == null) {
return Domain.all(type);
}
if (columnStatistics.hasNumberOfValues() && columnStatistics.getNumberOfValues() == 0) {
return Domain.onlyNull(type);
}
boolean hasNullValue = columnStatistics.getNumberOfValues() != rowCount;
if (type.getJavaType() == boolean.class && columnStatistics.getBooleanStatistics() != null) {
BooleanStatistics booleanStatistics = columnStatistics.getBooleanStatistics();
boolean hasTrueValues = (booleanStatistics.getTrueValueCount() != 0);
boolean hasFalseValues = (columnStatistics.getNumberOfValues() != booleanStatistics.getTrueValueCount());
if (hasTrueValues && hasFalseValues) {
return Domain.all(BOOLEAN);
}
if (hasTrueValues) {
return Domain.create(ValueSet.of(BOOLEAN, true), hasNullValue);
}
if (hasFalseValues) {
return Domain.create(ValueSet.of(BOOLEAN, false), hasNullValue);
}
} else if (isShortDecimal(type) && columnStatistics.getDecimalStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getDecimalStatistics(), value -> rescale(value, (DecimalType) type).unscaledValue().longValue());
} else if (isLongDecimal(type) && columnStatistics.getDecimalStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getDecimalStatistics(), value -> encodeUnscaledValue(rescale(value, (DecimalType) type).unscaledValue()));
} else if (isCharType(type) && columnStatistics.getStringStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getStringStatistics(), value -> truncateToLengthAndTrimSpaces(value, type));
} else if (isVarcharType(type) && columnStatistics.getStringStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getStringStatistics());
} else if (type.getTypeSignature().getBase().equals(StandardTypes.DATE) && columnStatistics.getDateStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getDateStatistics(), value -> (long) value);
} else if (type.getJavaType() == long.class && columnStatistics.getIntegerStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getIntegerStatistics());
} else if (type.getJavaType() == double.class && columnStatistics.getDoubleStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getDoubleStatistics());
} else if (REAL.equals(type) && columnStatistics.getDoubleStatistics() != null) {
return createDomain(type, hasNullValue, columnStatistics.getDoubleStatistics(), value -> (long) floatToRawIntBits(value.floatValue()));
}
return Domain.create(ValueSet.all(type), hasNullValue);
}
Aggregations