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PostgreSQL Reference Manual - Volume 2 - Programming Guide
by The PostgreSQL Global Development Group
Paperback (6"x9"), 408 pages
ISBN 0954612035
RRP £19.95 ($34.95)

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4.32 sql_features

The table sql_features contains information about which formal features defined in the SQL standard are supported by PostgreSQL. This is the same information that is presented in Volume 1: D SQL Conformance. There you can also find some additional background information.

4-30: sql_features Columns
Name Data Type Description
feature_id character_data Identifier string of the feature
feature_name character_data Descriptive name of the feature
sub_feature_id character_data Identifier string of the subfeature, or a zero-length string if not a subfeature
sub_feature_name character_data Descriptive name of the subfeature, or a zero-length string if not a subfeature
is_supported character_data YES if the feature is fully supported by the current version of PostgreSQL, NO if not
is_verified_by character_data Always null, since the PostgreSQL development group does not perform formal testing of feature conformance
comments character_data Possibly a comment about the supported status of the feature
ISBN 0954612035PostgreSQL Reference Manual - Volume 2 - Programming GuideSee the print edition