CREATE ANALYZER
¶
Define a new fulltext analyzer.
Table of contents
Synopsis¶
CREATE ANALYZER analyzer_name EXTENDS parent_analyzer_name
WITH ( override_parameter [= value] [, ... ] )
CREATE ANALYZER analyzer_name (
[ TOKENIZER
{
tokenizer_name
| custom_name WITH ( type = tokenizer_name, tokenizer_parameter [= value] [, ... ] )
}
]
[ TOKEN_FILTERS (
{
token_filter_name
| custom_name WITH ( type = token_filter_name, token_filter_parameter [= value] [, ... ] )
}
[, ... ]
)
]
[ CHAR_FILTERS (
{
char_filter_name
| custom_name WITH ( type = char_filter_name, char_filter_parameter [= value] [, ... ] )
}
[, ... ]
)
]
)
Description¶
CREATE ANALYZER
specifies a whole analyzer chain for use in fulltext
searches. It is possible to extend an existing analyzer or define a new
analyzer chain from scratch. For examples and detailed explanation see
Creating a custom analyzer.
Caution
If analyzer_name
already exists, its definition is updated, but
existing tables will continue to use the old definition.
Parameters¶
- analyzer_name:
The globally unique name of the analyzer being created.
- parent_analyzer_name:
The name of the analyzer to inherit defaults from.
- override_parameter:
The name of a parameter of the parent analyzer which should be assigned a new value to.
- tokenizer_name:
The name of a builtin tokenizer to be used.
- tokenizer_parameter:
A name of a parameter for a given tokenizer.
- token_filter_name:
The name of a builtin token filter to be used.
- token_filter_parameter:
A name of a parameter for a given token filter.
- char_filter_name:
The name of a builtin char filter to be used.
- char_filter_parameter:
A name of a parameter for a given char filter.
- custom_name:
A custom unique name needed when defining custom tokenizers/token_filter/char_filter.