RDB$FUNCTION_NAME
| CHAR(31)
| The unique identifier of the BLOB filter |
RDB$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(31)
| 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
|