PG_TS_PARSER
PG_TS_PARSER contains entries defining text search parsers. A parser is responsible for splitting input text into lexemes and assigning a token type to each lexeme. The new parser must be created by the database system administrator.
Table 1 PG_TS_PARSER columns
Name
|
Type
|
Reference
|
Description
|
|---|
oid
|
oid
|
-
|
Row identifier (hidden attribute, which must be specified)
|
prsname
|
name
|
-
|
Text search parser name
|
prsnamespace
|
oid
|
PG_NAMESPACE.oid
|
OID of the namespace that contains the parser
|
prsstart
|
regproc
|
PG_PROC.proname
|
Name of the parser's startup function
|
prstoken
|
regproc
|
PG_PROC.proname
|
Name of the parser's next-token function
|
prsend
|
regproc
|
PG_PROC.proname
|
Name of the parser's shutdown function
|
prsheadline
|
regproc
|
PG_PROC.proname
|
Name of the parser's headline function
|
prslextype
|
regproc
|
PG_PROC.proname
|
Name of the parser's lextype function
|