Retro Eye care Haitian Deep Dark Default

CREATE DEFAULT SHADOW ALGORITHM

CREATE DEFAULT SHADOW ALGORITHM

Description

The CREATE DEFAULT SHADOW ALGORITHM syntax is used to create a default shadow algorithm.

Syntax

CreateDefaultShadowAlgorithm ::=
  'CREATE' 'DEFAULT' 'SHADOW' 'ALGORITHM' ifNotExists? shadowAlgorithm 

ifNotExists ::=
  'IF' 'NOT' 'EXISTS'

shadowAlgorithm ::=
  'TYPE' '(' 'NAME' '=' shadowAlgorithmType ',' propertiesDefiinition ')'
    
shadowAlgorithmType ::=
  string

propertiesDefinition ::=
  'PROPERTIES' '(' key '=' value (',' key '=' value)* ')'

key ::=
  string

value ::=
  literal

Supplement

shadowAlgorithmType currently supports VALUE_MATCH, REGEX_MATCH and SIMPLE_HINT;
ifNotExists clause is used for avoid Duplicate default shadow algorithm error.

Example

Create default shadow algorithm

CREATE DEFAULT SHADOW ALGORITHM TYPE(NAME="SIMPLE_HINT", PROPERTIES("shadow"="true", "foo"="bar"));

Create default shadow algorithm with ifNotExist clause

CREATE DEFAULT SHADOW ALGORITHM IF NOT EXISTS TYPE(NAME="SIMPLE_HINT", PROPERTIES("shadow"="true", "foo"="bar"));

Reserved word

CREATE, DEFAULT, SHADOW, ALGORITHM, TYPE, NAME, PROPERTIES

Reserved word