D.14 RDB$FILTERS

RDB$FILTERS stores information about BLOB filters.

Column Name Data Type Description
RDB$FUNCTION_NAME CHAR(63) The unique identifier of the BLOB filter
RDB$DESCRIPTION BLOB TEXT Documentation about the BLOB filter and the two subtypes it is used with, written by the user
RDB$MODULE_NAME VARCHAR(255) The name of the dynamic library or shared object where the code of the BLOB filter is located
RDB$ENTRYPOINT CHAR(255) The exported name of the BLOB filter in the filter library. Note, this is often not the same as RDB$FUNCTION_NAME, which is the identifier with which the BLOB filter is declared to the database
RDB$INPUT_SUB_TYPE SMALLINT The BLOB subtype of the data to be converted by the function
RDB$OUTPUT_SUB_TYPE SMALLINT The BLOB subtype of the converted data
RDB$SYSTEM_FLAG SMALLINT Flag indicating whether the filter is user-defined or internally defined: 0 - user-defined 1 or greater - internally defined
RDB$SECURITY_CLASS CHAR(63) May reference a security class defined in the table RDB$SECURITY_CLASSES, in order to apply access control limits to all users of this filter
RDB$OWNER_NAME CHAR(63) The user name of the user who created the filter originally