Package it.unibz.inf.ontop.generation.normalization.impl

Class Summary

Class	Description
AlwaysProjectOrderByTermsNormalizer
ConvertValuesToUnionNormalizer	Many databases do not support VALUES, they use this normalizer and replace ValuesNodes with a union of Construction/True pairs.
DB2ExtraNormalizer
DenodoExtraNormalizer
DremioExtraNormalizer
EnforceNullOrderNormalizer
EnforceNullOrderNormalizer.EnforceNullOrderIQTreeVisitingTransformer
IdentityDialectExtraNormalizer	Does nothing
MySQLExtraNormalizer
OnlyInPresenceOfDistinctProjectOrderByTermsNormalizer
OracleExtraNormalizer
PostgresDialectExtraNormalizer
ProjectOrderByTermsNormalizer
ReplaceProvenanceConstantByNonGroundTermNormalizer	Prevents a bug observed with MySQL 5.7.15, where the provenance special constant was misused (causing a MINUS encoded with a LJ and filter is null not to work)
SQLServerExtraNormalizer
SubQueryFromComplexJoinExtraNormalizer	When (left,inner) joins are having (left,inner) joins as children.
TypingNullsDialectExtraNormalizer
WrapProjectedOrOrderByExpressionNormalizer	For DBMS such as SQLServer and Oracle that do not expect boolean expressions to be projected