`information_schema.routines.parameter_style`

mysql

type: VARCHAR NOT NULL

5.7-8

type: NULL

Note:

Always SQL.

5.1-10.8

type: VARCHAR NOT NULL

Note:

Always SQL.

type: CHARACTER_DATA NULL

Note:

Always GENERAL (The SQL standard defines other parameter styles, which are not available in PostgreSQL.)

10-15

type: CHARACTER_DATA

Note:

Always GENERAL (The SQL standard defines other parameter styles, which are not available in PostgreSQL.)

7.4-9.6

type: NULL

Note:

Always NULL.

type: NVARCHAR(30) NULL

Note:

NULL. Reserved for future use.